1ec125fbbSEdward Tomasz Napierala /*- 2ec125fbbSEdward Tomasz Napierala * Copyright (c) 2010 The FreeBSD Foundation 3ec125fbbSEdward Tomasz Napierala * All rights reserved. 4ec125fbbSEdward Tomasz Napierala * 5ec125fbbSEdward Tomasz Napierala * This software was developed by Edward Tomasz Napierala under sponsorship 6ec125fbbSEdward Tomasz Napierala * from the FreeBSD Foundation. 7ec125fbbSEdward Tomasz Napierala * 8ec125fbbSEdward Tomasz Napierala * Redistribution and use in source and binary forms, with or without 9ec125fbbSEdward Tomasz Napierala * modification, are permitted provided that the following conditions 10ec125fbbSEdward Tomasz Napierala * are met: 11ec125fbbSEdward Tomasz Napierala * 1. Redistributions of source code must retain the above copyright 12ec125fbbSEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer. 13ec125fbbSEdward Tomasz Napierala * 2. Redistributions in binary form must reproduce the above copyright 14ec125fbbSEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer in the 15ec125fbbSEdward Tomasz Napierala * documentation and/or other materials provided with the distribution. 16ec125fbbSEdward Tomasz Napierala * 17ec125fbbSEdward Tomasz Napierala * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18ec125fbbSEdward Tomasz Napierala * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19ec125fbbSEdward Tomasz Napierala * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20ec125fbbSEdward Tomasz Napierala * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21ec125fbbSEdward Tomasz Napierala * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22ec125fbbSEdward Tomasz Napierala * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23ec125fbbSEdward Tomasz Napierala * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24ec125fbbSEdward Tomasz Napierala * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25ec125fbbSEdward Tomasz Napierala * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26ec125fbbSEdward Tomasz Napierala * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27ec125fbbSEdward Tomasz Napierala * SUCH DAMAGE. 28ec125fbbSEdward Tomasz Napierala * 29ec125fbbSEdward Tomasz Napierala * $FreeBSD$ 30ec125fbbSEdward Tomasz Napierala */ 31ec125fbbSEdward Tomasz Napierala 32ec125fbbSEdward Tomasz Napierala #include <sys/cdefs.h> 33ec125fbbSEdward Tomasz Napierala __FBSDID("$FreeBSD$"); 34ec125fbbSEdward Tomasz Napierala 35ec125fbbSEdward Tomasz Napierala #include <sys/param.h> 36ec125fbbSEdward Tomasz Napierala #include <sys/bus.h> 37ec125fbbSEdward Tomasz Napierala #include <sys/malloc.h> 38ec125fbbSEdward Tomasz Napierala #include <sys/queue.h> 39ec125fbbSEdward Tomasz Napierala #include <sys/refcount.h> 40ec125fbbSEdward Tomasz Napierala #include <sys/jail.h> 41ec125fbbSEdward Tomasz Napierala #include <sys/kernel.h> 42ec125fbbSEdward Tomasz Napierala #include <sys/limits.h> 43ec125fbbSEdward Tomasz Napierala #include <sys/loginclass.h> 44ec125fbbSEdward Tomasz Napierala #include <sys/priv.h> 45ec125fbbSEdward Tomasz Napierala #include <sys/proc.h> 46ec125fbbSEdward Tomasz Napierala #include <sys/racct.h> 47ec125fbbSEdward Tomasz Napierala #include <sys/rctl.h> 48ec125fbbSEdward Tomasz Napierala #include <sys/resourcevar.h> 49ec125fbbSEdward Tomasz Napierala #include <sys/sx.h> 50ec125fbbSEdward Tomasz Napierala #include <sys/sysent.h> 51ec125fbbSEdward Tomasz Napierala #include <sys/sysproto.h> 52ec125fbbSEdward Tomasz Napierala #include <sys/systm.h> 53ec125fbbSEdward Tomasz Napierala #include <sys/types.h> 54ec125fbbSEdward Tomasz Napierala #include <sys/eventhandler.h> 55ec125fbbSEdward Tomasz Napierala #include <sys/lock.h> 56ec125fbbSEdward Tomasz Napierala #include <sys/mutex.h> 57ec125fbbSEdward Tomasz Napierala #include <sys/rwlock.h> 58ec125fbbSEdward Tomasz Napierala #include <sys/sbuf.h> 59ec125fbbSEdward Tomasz Napierala #include <sys/taskqueue.h> 60ec125fbbSEdward Tomasz Napierala #include <sys/tree.h> 61ec125fbbSEdward Tomasz Napierala #include <vm/uma.h> 62ec125fbbSEdward Tomasz Napierala 63ec125fbbSEdward Tomasz Napierala #ifdef RCTL 64ec125fbbSEdward Tomasz Napierala #ifndef RACCT 65ec125fbbSEdward Tomasz Napierala #error "The RCTL option requires the RACCT option" 66ec125fbbSEdward Tomasz Napierala #endif 67ec125fbbSEdward Tomasz Napierala 68ec125fbbSEdward Tomasz Napierala FEATURE(rctl, "Resource Limits"); 69ec125fbbSEdward Tomasz Napierala 70ec125fbbSEdward Tomasz Napierala #define HRF_DEFAULT 0 71ec125fbbSEdward Tomasz Napierala #define HRF_DONT_INHERIT 1 72ec125fbbSEdward Tomasz Napierala #define HRF_DONT_ACCUMULATE 2 73ec125fbbSEdward Tomasz Napierala 74ec125fbbSEdward Tomasz Napierala /* Default buffer size for rctl_get_rules(2). */ 75ec125fbbSEdward Tomasz Napierala #define RCTL_DEFAULT_BUFSIZE 4096 76786813aaSEdward Tomasz Napierala #define RCTL_MAX_INBUFLEN 4096 77ec125fbbSEdward Tomasz Napierala #define RCTL_LOG_BUFSIZE 128 78ec125fbbSEdward Tomasz Napierala 79*36af9869SEdward Tomasz Napierala #define RCTL_PCPU_SHIFT (10 * 1000000) 80*36af9869SEdward Tomasz Napierala 81ec125fbbSEdward Tomasz Napierala /* 82ec125fbbSEdward Tomasz Napierala * 'rctl_rule_link' connects a rule with every racct it's related to. 83ec125fbbSEdward Tomasz Napierala * For example, rule 'user:X:openfiles:deny=N/process' is linked 84ec125fbbSEdward Tomasz Napierala * with uidinfo for user X, and to each process of that user. 85ec125fbbSEdward Tomasz Napierala */ 86ec125fbbSEdward Tomasz Napierala struct rctl_rule_link { 87ec125fbbSEdward Tomasz Napierala LIST_ENTRY(rctl_rule_link) rrl_next; 88ec125fbbSEdward Tomasz Napierala struct rctl_rule *rrl_rule; 89ec125fbbSEdward Tomasz Napierala int rrl_exceeded; 90ec125fbbSEdward Tomasz Napierala }; 91ec125fbbSEdward Tomasz Napierala 92ec125fbbSEdward Tomasz Napierala struct dict { 93ec125fbbSEdward Tomasz Napierala const char *d_name; 94ec125fbbSEdward Tomasz Napierala int d_value; 95ec125fbbSEdward Tomasz Napierala }; 96ec125fbbSEdward Tomasz Napierala 97ec125fbbSEdward Tomasz Napierala static struct dict subjectnames[] = { 98ec125fbbSEdward Tomasz Napierala { "process", RCTL_SUBJECT_TYPE_PROCESS }, 99ec125fbbSEdward Tomasz Napierala { "user", RCTL_SUBJECT_TYPE_USER }, 100ec125fbbSEdward Tomasz Napierala { "loginclass", RCTL_SUBJECT_TYPE_LOGINCLASS }, 101ec125fbbSEdward Tomasz Napierala { "jail", RCTL_SUBJECT_TYPE_JAIL }, 102ec125fbbSEdward Tomasz Napierala { NULL, -1 }}; 103ec125fbbSEdward Tomasz Napierala 104ec125fbbSEdward Tomasz Napierala static struct dict resourcenames[] = { 10585a2f1b4SEdward Tomasz Napierala { "cputime", RACCT_CPU }, 10685a2f1b4SEdward Tomasz Napierala { "datasize", RACCT_DATA }, 10785a2f1b4SEdward Tomasz Napierala { "stacksize", RACCT_STACK }, 10885a2f1b4SEdward Tomasz Napierala { "coredumpsize", RACCT_CORE }, 10985a2f1b4SEdward Tomasz Napierala { "memoryuse", RACCT_RSS }, 11085a2f1b4SEdward Tomasz Napierala { "memorylocked", RACCT_MEMLOCK }, 11185a2f1b4SEdward Tomasz Napierala { "maxproc", RACCT_NPROC }, 11285a2f1b4SEdward Tomasz Napierala { "openfiles", RACCT_NOFILE }, 11385a2f1b4SEdward Tomasz Napierala { "vmemoryuse", RACCT_VMEM }, 11485a2f1b4SEdward Tomasz Napierala { "pseudoterminals", RACCT_NPTS }, 11585a2f1b4SEdward Tomasz Napierala { "swapuse", RACCT_SWAP }, 116ec125fbbSEdward Tomasz Napierala { "nthr", RACCT_NTHR }, 117ec125fbbSEdward Tomasz Napierala { "msgqqueued", RACCT_MSGQQUEUED }, 118ec125fbbSEdward Tomasz Napierala { "msgqsize", RACCT_MSGQSIZE }, 119ec125fbbSEdward Tomasz Napierala { "nmsgq", RACCT_NMSGQ }, 120ec125fbbSEdward Tomasz Napierala { "nsem", RACCT_NSEM }, 121ec125fbbSEdward Tomasz Napierala { "nsemop", RACCT_NSEMOP }, 122ec125fbbSEdward Tomasz Napierala { "nshm", RACCT_NSHM }, 123ec125fbbSEdward Tomasz Napierala { "shmsize", RACCT_SHMSIZE }, 124ec125fbbSEdward Tomasz Napierala { "wallclock", RACCT_WALLCLOCK }, 125*36af9869SEdward Tomasz Napierala { "pcpu", RACCT_PCTCPU }, 126ec125fbbSEdward Tomasz Napierala { NULL, -1 }}; 127ec125fbbSEdward Tomasz Napierala 128ec125fbbSEdward Tomasz Napierala static struct dict actionnames[] = { 129ec125fbbSEdward Tomasz Napierala { "sighup", RCTL_ACTION_SIGHUP }, 130ec125fbbSEdward Tomasz Napierala { "sigint", RCTL_ACTION_SIGINT }, 131ec125fbbSEdward Tomasz Napierala { "sigquit", RCTL_ACTION_SIGQUIT }, 132ec125fbbSEdward Tomasz Napierala { "sigill", RCTL_ACTION_SIGILL }, 133ec125fbbSEdward Tomasz Napierala { "sigtrap", RCTL_ACTION_SIGTRAP }, 134ec125fbbSEdward Tomasz Napierala { "sigabrt", RCTL_ACTION_SIGABRT }, 135ec125fbbSEdward Tomasz Napierala { "sigemt", RCTL_ACTION_SIGEMT }, 136ec125fbbSEdward Tomasz Napierala { "sigfpe", RCTL_ACTION_SIGFPE }, 137ec125fbbSEdward Tomasz Napierala { "sigkill", RCTL_ACTION_SIGKILL }, 138ec125fbbSEdward Tomasz Napierala { "sigbus", RCTL_ACTION_SIGBUS }, 139ec125fbbSEdward Tomasz Napierala { "sigsegv", RCTL_ACTION_SIGSEGV }, 140ec125fbbSEdward Tomasz Napierala { "sigsys", RCTL_ACTION_SIGSYS }, 141ec125fbbSEdward Tomasz Napierala { "sigpipe", RCTL_ACTION_SIGPIPE }, 142ec125fbbSEdward Tomasz Napierala { "sigalrm", RCTL_ACTION_SIGALRM }, 143ec125fbbSEdward Tomasz Napierala { "sigterm", RCTL_ACTION_SIGTERM }, 144ec125fbbSEdward Tomasz Napierala { "sigurg", RCTL_ACTION_SIGURG }, 145ec125fbbSEdward Tomasz Napierala { "sigstop", RCTL_ACTION_SIGSTOP }, 146ec125fbbSEdward Tomasz Napierala { "sigtstp", RCTL_ACTION_SIGTSTP }, 147ec125fbbSEdward Tomasz Napierala { "sigchld", RCTL_ACTION_SIGCHLD }, 148ec125fbbSEdward Tomasz Napierala { "sigttin", RCTL_ACTION_SIGTTIN }, 149ec125fbbSEdward Tomasz Napierala { "sigttou", RCTL_ACTION_SIGTTOU }, 150ec125fbbSEdward Tomasz Napierala { "sigio", RCTL_ACTION_SIGIO }, 151ec125fbbSEdward Tomasz Napierala { "sigxcpu", RCTL_ACTION_SIGXCPU }, 152ec125fbbSEdward Tomasz Napierala { "sigxfsz", RCTL_ACTION_SIGXFSZ }, 153ec125fbbSEdward Tomasz Napierala { "sigvtalrm", RCTL_ACTION_SIGVTALRM }, 154ec125fbbSEdward Tomasz Napierala { "sigprof", RCTL_ACTION_SIGPROF }, 155ec125fbbSEdward Tomasz Napierala { "sigwinch", RCTL_ACTION_SIGWINCH }, 156ec125fbbSEdward Tomasz Napierala { "siginfo", RCTL_ACTION_SIGINFO }, 157ec125fbbSEdward Tomasz Napierala { "sigusr1", RCTL_ACTION_SIGUSR1 }, 158ec125fbbSEdward Tomasz Napierala { "sigusr2", RCTL_ACTION_SIGUSR2 }, 159ec125fbbSEdward Tomasz Napierala { "sigthr", RCTL_ACTION_SIGTHR }, 160ec125fbbSEdward Tomasz Napierala { "deny", RCTL_ACTION_DENY }, 161ec125fbbSEdward Tomasz Napierala { "log", RCTL_ACTION_LOG }, 162ec125fbbSEdward Tomasz Napierala { "devctl", RCTL_ACTION_DEVCTL }, 163ec125fbbSEdward Tomasz Napierala { NULL, -1 }}; 164ec125fbbSEdward Tomasz Napierala 165ec125fbbSEdward Tomasz Napierala static void rctl_init(void); 166ec125fbbSEdward Tomasz Napierala SYSINIT(rctl, SI_SUB_RACCT, SI_ORDER_FIRST, rctl_init, NULL); 167ec125fbbSEdward Tomasz Napierala 168ec125fbbSEdward Tomasz Napierala static uma_zone_t rctl_rule_link_zone; 169ec125fbbSEdward Tomasz Napierala static uma_zone_t rctl_rule_zone; 170ec125fbbSEdward Tomasz Napierala static struct rwlock rctl_lock; 171ec125fbbSEdward Tomasz Napierala RW_SYSINIT(rctl_lock, &rctl_lock, "RCTL lock"); 172ec125fbbSEdward Tomasz Napierala 173ec125fbbSEdward Tomasz Napierala static int rctl_rule_fully_specified(const struct rctl_rule *rule); 174ec125fbbSEdward Tomasz Napierala static void rctl_rule_to_sbuf(struct sbuf *sb, const struct rctl_rule *rule); 175ec125fbbSEdward Tomasz Napierala 176d745c852SEd Schouten static MALLOC_DEFINE(M_RCTL, "rctl", "Resource Limits"); 177ec125fbbSEdward Tomasz Napierala 178ec125fbbSEdward Tomasz Napierala static const char * 179ec125fbbSEdward Tomasz Napierala rctl_subject_type_name(int subject) 180ec125fbbSEdward Tomasz Napierala { 181ec125fbbSEdward Tomasz Napierala int i; 182ec125fbbSEdward Tomasz Napierala 183ec125fbbSEdward Tomasz Napierala for (i = 0; subjectnames[i].d_name != NULL; i++) { 184ec125fbbSEdward Tomasz Napierala if (subjectnames[i].d_value == subject) 185ec125fbbSEdward Tomasz Napierala return (subjectnames[i].d_name); 186ec125fbbSEdward Tomasz Napierala } 187ec125fbbSEdward Tomasz Napierala 188ec125fbbSEdward Tomasz Napierala panic("rctl_subject_type_name: unknown subject type %d", subject); 189ec125fbbSEdward Tomasz Napierala } 190ec125fbbSEdward Tomasz Napierala 191ec125fbbSEdward Tomasz Napierala static const char * 192ec125fbbSEdward Tomasz Napierala rctl_action_name(int action) 193ec125fbbSEdward Tomasz Napierala { 194ec125fbbSEdward Tomasz Napierala int i; 195ec125fbbSEdward Tomasz Napierala 196ec125fbbSEdward Tomasz Napierala for (i = 0; actionnames[i].d_name != NULL; i++) { 197ec125fbbSEdward Tomasz Napierala if (actionnames[i].d_value == action) 198ec125fbbSEdward Tomasz Napierala return (actionnames[i].d_name); 199ec125fbbSEdward Tomasz Napierala } 200ec125fbbSEdward Tomasz Napierala 201ec125fbbSEdward Tomasz Napierala panic("rctl_action_name: unknown action %d", action); 202ec125fbbSEdward Tomasz Napierala } 203ec125fbbSEdward Tomasz Napierala 204ec125fbbSEdward Tomasz Napierala const char * 205ec125fbbSEdward Tomasz Napierala rctl_resource_name(int resource) 206ec125fbbSEdward Tomasz Napierala { 207ec125fbbSEdward Tomasz Napierala int i; 208ec125fbbSEdward Tomasz Napierala 209ec125fbbSEdward Tomasz Napierala for (i = 0; resourcenames[i].d_name != NULL; i++) { 210ec125fbbSEdward Tomasz Napierala if (resourcenames[i].d_value == resource) 211ec125fbbSEdward Tomasz Napierala return (resourcenames[i].d_name); 212ec125fbbSEdward Tomasz Napierala } 213ec125fbbSEdward Tomasz Napierala 214ec125fbbSEdward Tomasz Napierala panic("rctl_resource_name: unknown resource %d", resource); 215ec125fbbSEdward Tomasz Napierala } 216ec125fbbSEdward Tomasz Napierala 217ec125fbbSEdward Tomasz Napierala /* 218ec125fbbSEdward Tomasz Napierala * Return the amount of resource that can be allocated by 'p' before 219ec125fbbSEdward Tomasz Napierala * hitting 'rule'. 220ec125fbbSEdward Tomasz Napierala */ 221ec125fbbSEdward Tomasz Napierala static int64_t 222ec125fbbSEdward Tomasz Napierala rctl_available_resource(const struct proc *p, const struct rctl_rule *rule) 223ec125fbbSEdward Tomasz Napierala { 224ec125fbbSEdward Tomasz Napierala int resource; 225ec125fbbSEdward Tomasz Napierala int64_t available = INT64_MAX; 226ec125fbbSEdward Tomasz Napierala struct ucred *cred = p->p_ucred; 227ec125fbbSEdward Tomasz Napierala 228ec125fbbSEdward Tomasz Napierala rw_assert(&rctl_lock, RA_LOCKED); 229ec125fbbSEdward Tomasz Napierala 230ec125fbbSEdward Tomasz Napierala resource = rule->rr_resource; 231ec125fbbSEdward Tomasz Napierala switch (rule->rr_per) { 232ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 233ec125fbbSEdward Tomasz Napierala available = rule->rr_amount - 234ec125fbbSEdward Tomasz Napierala p->p_racct->r_resources[resource]; 235ec125fbbSEdward Tomasz Napierala break; 236ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 237ec125fbbSEdward Tomasz Napierala available = rule->rr_amount - 238ec125fbbSEdward Tomasz Napierala cred->cr_ruidinfo->ui_racct->r_resources[resource]; 239ec125fbbSEdward Tomasz Napierala break; 240ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 241ec125fbbSEdward Tomasz Napierala available = rule->rr_amount - 242ec125fbbSEdward Tomasz Napierala cred->cr_loginclass->lc_racct->r_resources[resource]; 243ec125fbbSEdward Tomasz Napierala break; 244ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 245ec125fbbSEdward Tomasz Napierala available = rule->rr_amount - 246a7ad07bfSEdward Tomasz Napierala cred->cr_prison->pr_prison_racct->prr_racct-> 247a7ad07bfSEdward Tomasz Napierala r_resources[resource]; 248ec125fbbSEdward Tomasz Napierala break; 249ec125fbbSEdward Tomasz Napierala default: 250ec125fbbSEdward Tomasz Napierala panic("rctl_compute_available: unknown per %d", 251ec125fbbSEdward Tomasz Napierala rule->rr_per); 252ec125fbbSEdward Tomasz Napierala } 253ec125fbbSEdward Tomasz Napierala 254ec125fbbSEdward Tomasz Napierala return (available); 255ec125fbbSEdward Tomasz Napierala } 256ec125fbbSEdward Tomasz Napierala 257ec125fbbSEdward Tomasz Napierala /* 258ec125fbbSEdward Tomasz Napierala * Return non-zero if allocating 'amount' by proc 'p' would exceed 259ec125fbbSEdward Tomasz Napierala * resource limit specified by 'rule'. 260ec125fbbSEdward Tomasz Napierala */ 261ec125fbbSEdward Tomasz Napierala static int 262ec125fbbSEdward Tomasz Napierala rctl_would_exceed(const struct proc *p, const struct rctl_rule *rule, 263ec125fbbSEdward Tomasz Napierala int64_t amount) 264ec125fbbSEdward Tomasz Napierala { 265ec125fbbSEdward Tomasz Napierala int64_t available; 266ec125fbbSEdward Tomasz Napierala 267ec125fbbSEdward Tomasz Napierala rw_assert(&rctl_lock, RA_LOCKED); 268ec125fbbSEdward Tomasz Napierala 269ec125fbbSEdward Tomasz Napierala available = rctl_available_resource(p, rule); 270ec125fbbSEdward Tomasz Napierala if (available >= amount) 271ec125fbbSEdward Tomasz Napierala return (0); 272ec125fbbSEdward Tomasz Napierala 273ec125fbbSEdward Tomasz Napierala return (1); 274ec125fbbSEdward Tomasz Napierala } 275ec125fbbSEdward Tomasz Napierala 276ec125fbbSEdward Tomasz Napierala /* 277*36af9869SEdward Tomasz Napierala * Special version of rctl_available() function for the %cpu resource. 278*36af9869SEdward Tomasz Napierala * We slightly cheat here and return less than we normally would. 279*36af9869SEdward Tomasz Napierala */ 280*36af9869SEdward Tomasz Napierala int64_t 281*36af9869SEdward Tomasz Napierala rctl_pcpu_available(const struct proc *p) { 282*36af9869SEdward Tomasz Napierala struct rctl_rule *rule; 283*36af9869SEdward Tomasz Napierala struct rctl_rule_link *link; 284*36af9869SEdward Tomasz Napierala int64_t available, minavailable, limit; 285*36af9869SEdward Tomasz Napierala 286*36af9869SEdward Tomasz Napierala minavailable = INT64_MAX; 287*36af9869SEdward Tomasz Napierala limit = 0; 288*36af9869SEdward Tomasz Napierala 289*36af9869SEdward Tomasz Napierala rw_rlock(&rctl_lock); 290*36af9869SEdward Tomasz Napierala 291*36af9869SEdward Tomasz Napierala LIST_FOREACH(link, &p->p_racct->r_rule_links, rrl_next) { 292*36af9869SEdward Tomasz Napierala rule = link->rrl_rule; 293*36af9869SEdward Tomasz Napierala if (rule->rr_resource != RACCT_PCTCPU) 294*36af9869SEdward Tomasz Napierala continue; 295*36af9869SEdward Tomasz Napierala if (rule->rr_action != RCTL_ACTION_DENY) 296*36af9869SEdward Tomasz Napierala continue; 297*36af9869SEdward Tomasz Napierala available = rctl_available_resource(p, rule); 298*36af9869SEdward Tomasz Napierala if (available < minavailable) { 299*36af9869SEdward Tomasz Napierala minavailable = available; 300*36af9869SEdward Tomasz Napierala limit = rule->rr_amount; 301*36af9869SEdward Tomasz Napierala } 302*36af9869SEdward Tomasz Napierala } 303*36af9869SEdward Tomasz Napierala 304*36af9869SEdward Tomasz Napierala rw_runlock(&rctl_lock); 305*36af9869SEdward Tomasz Napierala 306*36af9869SEdward Tomasz Napierala /* 307*36af9869SEdward Tomasz Napierala * Return slightly less than actual value of the available 308*36af9869SEdward Tomasz Napierala * %cpu resource. This makes %cpu throttling more agressive 309*36af9869SEdward Tomasz Napierala * and lets us act sooner than the limits are already exceeded. 310*36af9869SEdward Tomasz Napierala */ 311*36af9869SEdward Tomasz Napierala if (limit != 0) { 312*36af9869SEdward Tomasz Napierala if (limit > 2 * RCTL_PCPU_SHIFT) 313*36af9869SEdward Tomasz Napierala minavailable -= RCTL_PCPU_SHIFT; 314*36af9869SEdward Tomasz Napierala else 315*36af9869SEdward Tomasz Napierala minavailable -= (limit / 2); 316*36af9869SEdward Tomasz Napierala } 317*36af9869SEdward Tomasz Napierala 318*36af9869SEdward Tomasz Napierala return (minavailable); 319*36af9869SEdward Tomasz Napierala } 320*36af9869SEdward Tomasz Napierala 321*36af9869SEdward Tomasz Napierala /* 322ec125fbbSEdward Tomasz Napierala * Check whether the proc 'p' can allocate 'amount' of 'resource' in addition 323ec125fbbSEdward Tomasz Napierala * to what it keeps allocated now. Returns non-zero if the allocation should 324ec125fbbSEdward Tomasz Napierala * be denied, 0 otherwise. 325ec125fbbSEdward Tomasz Napierala */ 326ec125fbbSEdward Tomasz Napierala int 327ec125fbbSEdward Tomasz Napierala rctl_enforce(struct proc *p, int resource, uint64_t amount) 328ec125fbbSEdward Tomasz Napierala { 329ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 330ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 331ec125fbbSEdward Tomasz Napierala struct sbuf sb; 332ec125fbbSEdward Tomasz Napierala int should_deny = 0; 333ec125fbbSEdward Tomasz Napierala char *buf; 334ec125fbbSEdward Tomasz Napierala static int curtime = 0; 335ec125fbbSEdward Tomasz Napierala static struct timeval lasttime; 336ec125fbbSEdward Tomasz Napierala 337ec125fbbSEdward Tomasz Napierala rw_rlock(&rctl_lock); 338ec125fbbSEdward Tomasz Napierala 339ec125fbbSEdward Tomasz Napierala /* 340ec125fbbSEdward Tomasz Napierala * There may be more than one matching rule; go through all of them. 341ec125fbbSEdward Tomasz Napierala * Denial should be done last, after logging and sending signals. 342ec125fbbSEdward Tomasz Napierala */ 343ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &p->p_racct->r_rule_links, rrl_next) { 344ec125fbbSEdward Tomasz Napierala rule = link->rrl_rule; 345ec125fbbSEdward Tomasz Napierala if (rule->rr_resource != resource) 346ec125fbbSEdward Tomasz Napierala continue; 347ec125fbbSEdward Tomasz Napierala if (!rctl_would_exceed(p, rule, amount)) { 348ec125fbbSEdward Tomasz Napierala link->rrl_exceeded = 0; 349ec125fbbSEdward Tomasz Napierala continue; 350ec125fbbSEdward Tomasz Napierala } 351ec125fbbSEdward Tomasz Napierala 352ec125fbbSEdward Tomasz Napierala switch (rule->rr_action) { 353ec125fbbSEdward Tomasz Napierala case RCTL_ACTION_DENY: 354ec125fbbSEdward Tomasz Napierala should_deny = 1; 355ec125fbbSEdward Tomasz Napierala continue; 356ec125fbbSEdward Tomasz Napierala case RCTL_ACTION_LOG: 357ec125fbbSEdward Tomasz Napierala /* 358ec125fbbSEdward Tomasz Napierala * If rrl_exceeded != 0, it means we've already 359ec125fbbSEdward Tomasz Napierala * logged a warning for this process. 360ec125fbbSEdward Tomasz Napierala */ 361ec125fbbSEdward Tomasz Napierala if (link->rrl_exceeded != 0) 362ec125fbbSEdward Tomasz Napierala continue; 363ec125fbbSEdward Tomasz Napierala 36472a401d9SEdward Tomasz Napierala /* 36572a401d9SEdward Tomasz Napierala * If the process state is not fully initialized yet, 36672a401d9SEdward Tomasz Napierala * we can't access most of the required fields, e.g. 36772a401d9SEdward Tomasz Napierala * p->p_comm. This happens when called from fork1(). 36872a401d9SEdward Tomasz Napierala * Ignore this rule for now; it will be processed just 36972a401d9SEdward Tomasz Napierala * after fork, when called from racct_proc_fork_done(). 37072a401d9SEdward Tomasz Napierala */ 37172a401d9SEdward Tomasz Napierala if (p->p_state != PRS_NORMAL) 37272a401d9SEdward Tomasz Napierala continue; 37372a401d9SEdward Tomasz Napierala 374ec125fbbSEdward Tomasz Napierala if (!ppsratecheck(&lasttime, &curtime, 10)) 375ec125fbbSEdward Tomasz Napierala continue; 376ec125fbbSEdward Tomasz Napierala 377ec125fbbSEdward Tomasz Napierala buf = malloc(RCTL_LOG_BUFSIZE, M_RCTL, M_NOWAIT); 378ec125fbbSEdward Tomasz Napierala if (buf == NULL) { 379ec125fbbSEdward Tomasz Napierala printf("rctl_enforce: out of memory\n"); 380ec125fbbSEdward Tomasz Napierala continue; 381ec125fbbSEdward Tomasz Napierala } 382ec125fbbSEdward Tomasz Napierala sbuf_new(&sb, buf, RCTL_LOG_BUFSIZE, SBUF_FIXEDLEN); 383ec125fbbSEdward Tomasz Napierala rctl_rule_to_sbuf(&sb, rule); 384ec125fbbSEdward Tomasz Napierala sbuf_finish(&sb); 385ec125fbbSEdward Tomasz Napierala printf("rctl: rule \"%s\" matched by pid %d " 386ec125fbbSEdward Tomasz Napierala "(%s), uid %d, jail %s\n", sbuf_data(&sb), 387ec125fbbSEdward Tomasz Napierala p->p_pid, p->p_comm, p->p_ucred->cr_uid, 388a7ad07bfSEdward Tomasz Napierala p->p_ucred->cr_prison->pr_prison_racct->prr_name); 389ec125fbbSEdward Tomasz Napierala sbuf_delete(&sb); 390ec125fbbSEdward Tomasz Napierala free(buf, M_RCTL); 391ec125fbbSEdward Tomasz Napierala link->rrl_exceeded = 1; 392ec125fbbSEdward Tomasz Napierala continue; 393ec125fbbSEdward Tomasz Napierala case RCTL_ACTION_DEVCTL: 394ec125fbbSEdward Tomasz Napierala if (link->rrl_exceeded != 0) 395ec125fbbSEdward Tomasz Napierala continue; 396ec125fbbSEdward Tomasz Napierala 39772a401d9SEdward Tomasz Napierala if (p->p_state != PRS_NORMAL) 39872a401d9SEdward Tomasz Napierala continue; 39972a401d9SEdward Tomasz Napierala 400ec125fbbSEdward Tomasz Napierala buf = malloc(RCTL_LOG_BUFSIZE, M_RCTL, M_NOWAIT); 401ec125fbbSEdward Tomasz Napierala if (buf == NULL) { 402ec125fbbSEdward Tomasz Napierala printf("rctl_enforce: out of memory\n"); 403ec125fbbSEdward Tomasz Napierala continue; 404ec125fbbSEdward Tomasz Napierala } 405ec125fbbSEdward Tomasz Napierala sbuf_new(&sb, buf, RCTL_LOG_BUFSIZE, SBUF_FIXEDLEN); 406ec125fbbSEdward Tomasz Napierala sbuf_printf(&sb, "rule="); 407ec125fbbSEdward Tomasz Napierala rctl_rule_to_sbuf(&sb, rule); 408ec125fbbSEdward Tomasz Napierala sbuf_printf(&sb, " pid=%d ruid=%d jail=%s", 409ec125fbbSEdward Tomasz Napierala p->p_pid, p->p_ucred->cr_ruid, 410a7ad07bfSEdward Tomasz Napierala p->p_ucred->cr_prison->pr_prison_racct->prr_name); 411ec125fbbSEdward Tomasz Napierala sbuf_finish(&sb); 412ec125fbbSEdward Tomasz Napierala devctl_notify_f("RCTL", "rule", "matched", 413ec125fbbSEdward Tomasz Napierala sbuf_data(&sb), M_NOWAIT); 414ec125fbbSEdward Tomasz Napierala sbuf_delete(&sb); 415ec125fbbSEdward Tomasz Napierala free(buf, M_RCTL); 416ec125fbbSEdward Tomasz Napierala link->rrl_exceeded = 1; 417ec125fbbSEdward Tomasz Napierala continue; 418ec125fbbSEdward Tomasz Napierala default: 419ec125fbbSEdward Tomasz Napierala if (link->rrl_exceeded != 0) 420ec125fbbSEdward Tomasz Napierala continue; 421ec125fbbSEdward Tomasz Napierala 42272a401d9SEdward Tomasz Napierala if (p->p_state != PRS_NORMAL) 42372a401d9SEdward Tomasz Napierala continue; 42472a401d9SEdward Tomasz Napierala 425ec125fbbSEdward Tomasz Napierala KASSERT(rule->rr_action > 0 && 426ec125fbbSEdward Tomasz Napierala rule->rr_action <= RCTL_ACTION_SIGNAL_MAX, 427ec125fbbSEdward Tomasz Napierala ("rctl_enforce: unknown action %d", 428ec125fbbSEdward Tomasz Napierala rule->rr_action)); 429ec125fbbSEdward Tomasz Napierala 430ec125fbbSEdward Tomasz Napierala /* 431ec125fbbSEdward Tomasz Napierala * We're using the fact that RCTL_ACTION_SIG* values 432ec125fbbSEdward Tomasz Napierala * are equal to their counterparts from sys/signal.h. 433ec125fbbSEdward Tomasz Napierala */ 4348451d0ddSKip Macy kern_psignal(p, rule->rr_action); 435ec125fbbSEdward Tomasz Napierala link->rrl_exceeded = 1; 436ec125fbbSEdward Tomasz Napierala continue; 437ec125fbbSEdward Tomasz Napierala } 438ec125fbbSEdward Tomasz Napierala } 439ec125fbbSEdward Tomasz Napierala 440ec125fbbSEdward Tomasz Napierala rw_runlock(&rctl_lock); 441ec125fbbSEdward Tomasz Napierala 442ec125fbbSEdward Tomasz Napierala if (should_deny) { 443ec125fbbSEdward Tomasz Napierala /* 444ec125fbbSEdward Tomasz Napierala * Return fake error code; the caller should change it 445ec125fbbSEdward Tomasz Napierala * into one proper for the situation - EFSIZ, ENOMEM etc. 446ec125fbbSEdward Tomasz Napierala */ 447ec125fbbSEdward Tomasz Napierala return (EDOOFUS); 448ec125fbbSEdward Tomasz Napierala } 449ec125fbbSEdward Tomasz Napierala 450ec125fbbSEdward Tomasz Napierala return (0); 451ec125fbbSEdward Tomasz Napierala } 452ec125fbbSEdward Tomasz Napierala 453ec125fbbSEdward Tomasz Napierala uint64_t 454ec125fbbSEdward Tomasz Napierala rctl_get_limit(struct proc *p, int resource) 455ec125fbbSEdward Tomasz Napierala { 456ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 457ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 458ec125fbbSEdward Tomasz Napierala uint64_t amount = UINT64_MAX; 459ec125fbbSEdward Tomasz Napierala 460ec125fbbSEdward Tomasz Napierala rw_rlock(&rctl_lock); 461ec125fbbSEdward Tomasz Napierala 462ec125fbbSEdward Tomasz Napierala /* 463ec125fbbSEdward Tomasz Napierala * There may be more than one matching rule; go through all of them. 464ec125fbbSEdward Tomasz Napierala * Denial should be done last, after logging and sending signals. 465ec125fbbSEdward Tomasz Napierala */ 466ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &p->p_racct->r_rule_links, rrl_next) { 467ec125fbbSEdward Tomasz Napierala rule = link->rrl_rule; 468ec125fbbSEdward Tomasz Napierala if (rule->rr_resource != resource) 469ec125fbbSEdward Tomasz Napierala continue; 470ec125fbbSEdward Tomasz Napierala if (rule->rr_action != RCTL_ACTION_DENY) 471ec125fbbSEdward Tomasz Napierala continue; 472ec125fbbSEdward Tomasz Napierala if (rule->rr_amount < amount) 473ec125fbbSEdward Tomasz Napierala amount = rule->rr_amount; 474ec125fbbSEdward Tomasz Napierala } 475ec125fbbSEdward Tomasz Napierala 476ec125fbbSEdward Tomasz Napierala rw_runlock(&rctl_lock); 477ec125fbbSEdward Tomasz Napierala 478ec125fbbSEdward Tomasz Napierala return (amount); 479ec125fbbSEdward Tomasz Napierala } 480ec125fbbSEdward Tomasz Napierala 481ec125fbbSEdward Tomasz Napierala uint64_t 482ec125fbbSEdward Tomasz Napierala rctl_get_available(struct proc *p, int resource) 483ec125fbbSEdward Tomasz Napierala { 484ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 485ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 486ec125fbbSEdward Tomasz Napierala int64_t available, minavailable, allocated; 487ec125fbbSEdward Tomasz Napierala 488ec125fbbSEdward Tomasz Napierala minavailable = INT64_MAX; 489ec125fbbSEdward Tomasz Napierala 490ec125fbbSEdward Tomasz Napierala rw_rlock(&rctl_lock); 491ec125fbbSEdward Tomasz Napierala 492ec125fbbSEdward Tomasz Napierala /* 493ec125fbbSEdward Tomasz Napierala * There may be more than one matching rule; go through all of them. 494ec125fbbSEdward Tomasz Napierala * Denial should be done last, after logging and sending signals. 495ec125fbbSEdward Tomasz Napierala */ 496ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &p->p_racct->r_rule_links, rrl_next) { 497ec125fbbSEdward Tomasz Napierala rule = link->rrl_rule; 498ec125fbbSEdward Tomasz Napierala if (rule->rr_resource != resource) 499ec125fbbSEdward Tomasz Napierala continue; 500ec125fbbSEdward Tomasz Napierala if (rule->rr_action != RCTL_ACTION_DENY) 501ec125fbbSEdward Tomasz Napierala continue; 502ec125fbbSEdward Tomasz Napierala available = rctl_available_resource(p, rule); 503ec125fbbSEdward Tomasz Napierala if (available < minavailable) 504ec125fbbSEdward Tomasz Napierala minavailable = available; 505ec125fbbSEdward Tomasz Napierala } 506ec125fbbSEdward Tomasz Napierala 507ec125fbbSEdward Tomasz Napierala rw_runlock(&rctl_lock); 508ec125fbbSEdward Tomasz Napierala 509ec125fbbSEdward Tomasz Napierala /* 510ec125fbbSEdward Tomasz Napierala * XXX: Think about this _hard_. 511ec125fbbSEdward Tomasz Napierala */ 512ec125fbbSEdward Tomasz Napierala allocated = p->p_racct->r_resources[resource]; 513ec125fbbSEdward Tomasz Napierala if (minavailable < INT64_MAX - allocated) 514ec125fbbSEdward Tomasz Napierala minavailable += allocated; 515ec125fbbSEdward Tomasz Napierala if (minavailable < 0) 516ec125fbbSEdward Tomasz Napierala minavailable = 0; 517ec125fbbSEdward Tomasz Napierala return (minavailable); 518ec125fbbSEdward Tomasz Napierala } 519ec125fbbSEdward Tomasz Napierala 520ec125fbbSEdward Tomasz Napierala static int 521ec125fbbSEdward Tomasz Napierala rctl_rule_matches(const struct rctl_rule *rule, const struct rctl_rule *filter) 522ec125fbbSEdward Tomasz Napierala { 523ec125fbbSEdward Tomasz Napierala 524ec125fbbSEdward Tomasz Napierala if (filter->rr_subject_type != RCTL_SUBJECT_TYPE_UNDEFINED) { 525ec125fbbSEdward Tomasz Napierala if (rule->rr_subject_type != filter->rr_subject_type) 526ec125fbbSEdward Tomasz Napierala return (0); 527ec125fbbSEdward Tomasz Napierala 528ec125fbbSEdward Tomasz Napierala switch (filter->rr_subject_type) { 529ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 530ec125fbbSEdward Tomasz Napierala if (filter->rr_subject.rs_proc != NULL && 531ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_proc != 532ec125fbbSEdward Tomasz Napierala filter->rr_subject.rs_proc) 533ec125fbbSEdward Tomasz Napierala return (0); 534ec125fbbSEdward Tomasz Napierala break; 535ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 536ec125fbbSEdward Tomasz Napierala if (filter->rr_subject.rs_uip != NULL && 537ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_uip != 538ec125fbbSEdward Tomasz Napierala filter->rr_subject.rs_uip) 539ec125fbbSEdward Tomasz Napierala return (0); 540ec125fbbSEdward Tomasz Napierala break; 541ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 542415896e3SEdward Tomasz Napierala if (filter->rr_subject.rs_loginclass != NULL && 543415896e3SEdward Tomasz Napierala rule->rr_subject.rs_loginclass != 544415896e3SEdward Tomasz Napierala filter->rr_subject.rs_loginclass) 545ec125fbbSEdward Tomasz Napierala return (0); 546ec125fbbSEdward Tomasz Napierala break; 547ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 548a7ad07bfSEdward Tomasz Napierala if (filter->rr_subject.rs_prison_racct != NULL && 549a7ad07bfSEdward Tomasz Napierala rule->rr_subject.rs_prison_racct != 550a7ad07bfSEdward Tomasz Napierala filter->rr_subject.rs_prison_racct) 551ec125fbbSEdward Tomasz Napierala return (0); 552ec125fbbSEdward Tomasz Napierala break; 553ec125fbbSEdward Tomasz Napierala default: 554ec125fbbSEdward Tomasz Napierala panic("rctl_rule_matches: unknown subject type %d", 555ec125fbbSEdward Tomasz Napierala filter->rr_subject_type); 556ec125fbbSEdward Tomasz Napierala } 557ec125fbbSEdward Tomasz Napierala } 558ec125fbbSEdward Tomasz Napierala 559ec125fbbSEdward Tomasz Napierala if (filter->rr_resource != RACCT_UNDEFINED) { 560ec125fbbSEdward Tomasz Napierala if (rule->rr_resource != filter->rr_resource) 561ec125fbbSEdward Tomasz Napierala return (0); 562ec125fbbSEdward Tomasz Napierala } 563ec125fbbSEdward Tomasz Napierala 564ec125fbbSEdward Tomasz Napierala if (filter->rr_action != RCTL_ACTION_UNDEFINED) { 565ec125fbbSEdward Tomasz Napierala if (rule->rr_action != filter->rr_action) 566ec125fbbSEdward Tomasz Napierala return (0); 567ec125fbbSEdward Tomasz Napierala } 568ec125fbbSEdward Tomasz Napierala 569ec125fbbSEdward Tomasz Napierala if (filter->rr_amount != RCTL_AMOUNT_UNDEFINED) { 570ec125fbbSEdward Tomasz Napierala if (rule->rr_amount != filter->rr_amount) 571ec125fbbSEdward Tomasz Napierala return (0); 572ec125fbbSEdward Tomasz Napierala } 573ec125fbbSEdward Tomasz Napierala 574ec125fbbSEdward Tomasz Napierala if (filter->rr_per != RCTL_SUBJECT_TYPE_UNDEFINED) { 575ec125fbbSEdward Tomasz Napierala if (rule->rr_per != filter->rr_per) 576ec125fbbSEdward Tomasz Napierala return (0); 577ec125fbbSEdward Tomasz Napierala } 578ec125fbbSEdward Tomasz Napierala 579ec125fbbSEdward Tomasz Napierala return (1); 580ec125fbbSEdward Tomasz Napierala } 581ec125fbbSEdward Tomasz Napierala 582ec125fbbSEdward Tomasz Napierala static int 583ec125fbbSEdward Tomasz Napierala str2value(const char *str, int *value, struct dict *table) 584ec125fbbSEdward Tomasz Napierala { 585ec125fbbSEdward Tomasz Napierala int i; 586ec125fbbSEdward Tomasz Napierala 587ec125fbbSEdward Tomasz Napierala if (value == NULL) 588ec125fbbSEdward Tomasz Napierala return (EINVAL); 589ec125fbbSEdward Tomasz Napierala 590ec125fbbSEdward Tomasz Napierala for (i = 0; table[i].d_name != NULL; i++) { 591ec125fbbSEdward Tomasz Napierala if (strcasecmp(table[i].d_name, str) == 0) { 592ec125fbbSEdward Tomasz Napierala *value = table[i].d_value; 593ec125fbbSEdward Tomasz Napierala return (0); 594ec125fbbSEdward Tomasz Napierala } 595ec125fbbSEdward Tomasz Napierala } 596ec125fbbSEdward Tomasz Napierala 597ec125fbbSEdward Tomasz Napierala return (EINVAL); 598ec125fbbSEdward Tomasz Napierala } 599ec125fbbSEdward Tomasz Napierala 600ec125fbbSEdward Tomasz Napierala static int 601ec125fbbSEdward Tomasz Napierala str2id(const char *str, id_t *value) 602ec125fbbSEdward Tomasz Napierala { 603ec125fbbSEdward Tomasz Napierala char *end; 604ec125fbbSEdward Tomasz Napierala 605ec125fbbSEdward Tomasz Napierala if (str == NULL) 606ec125fbbSEdward Tomasz Napierala return (EINVAL); 607ec125fbbSEdward Tomasz Napierala 608ec125fbbSEdward Tomasz Napierala *value = strtoul(str, &end, 10); 609ec125fbbSEdward Tomasz Napierala if ((size_t)(end - str) != strlen(str)) 610ec125fbbSEdward Tomasz Napierala return (EINVAL); 611ec125fbbSEdward Tomasz Napierala 612ec125fbbSEdward Tomasz Napierala return (0); 613ec125fbbSEdward Tomasz Napierala } 614ec125fbbSEdward Tomasz Napierala 615ec125fbbSEdward Tomasz Napierala static int 616ec125fbbSEdward Tomasz Napierala str2int64(const char *str, int64_t *value) 617ec125fbbSEdward Tomasz Napierala { 618ec125fbbSEdward Tomasz Napierala char *end; 619ec125fbbSEdward Tomasz Napierala 620ec125fbbSEdward Tomasz Napierala if (str == NULL) 621ec125fbbSEdward Tomasz Napierala return (EINVAL); 622ec125fbbSEdward Tomasz Napierala 623ec125fbbSEdward Tomasz Napierala *value = strtoul(str, &end, 10); 624ec125fbbSEdward Tomasz Napierala if ((size_t)(end - str) != strlen(str)) 625ec125fbbSEdward Tomasz Napierala return (EINVAL); 626ec125fbbSEdward Tomasz Napierala 627ec125fbbSEdward Tomasz Napierala return (0); 628ec125fbbSEdward Tomasz Napierala } 629ec125fbbSEdward Tomasz Napierala 630ec125fbbSEdward Tomasz Napierala /* 631ec125fbbSEdward Tomasz Napierala * Connect the rule to the racct, increasing refcount for the rule. 632ec125fbbSEdward Tomasz Napierala */ 633ec125fbbSEdward Tomasz Napierala static void 634ec125fbbSEdward Tomasz Napierala rctl_racct_add_rule(struct racct *racct, struct rctl_rule *rule) 635ec125fbbSEdward Tomasz Napierala { 636ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 637ec125fbbSEdward Tomasz Napierala 638ec125fbbSEdward Tomasz Napierala KASSERT(rctl_rule_fully_specified(rule), ("rule not fully specified")); 639ec125fbbSEdward Tomasz Napierala 640ec125fbbSEdward Tomasz Napierala rctl_rule_acquire(rule); 641ec125fbbSEdward Tomasz Napierala link = uma_zalloc(rctl_rule_link_zone, M_WAITOK); 642ec125fbbSEdward Tomasz Napierala link->rrl_rule = rule; 643ec125fbbSEdward Tomasz Napierala link->rrl_exceeded = 0; 644ec125fbbSEdward Tomasz Napierala 645ec125fbbSEdward Tomasz Napierala rw_wlock(&rctl_lock); 646ec125fbbSEdward Tomasz Napierala LIST_INSERT_HEAD(&racct->r_rule_links, link, rrl_next); 647ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 648ec125fbbSEdward Tomasz Napierala } 649ec125fbbSEdward Tomasz Napierala 650ec125fbbSEdward Tomasz Napierala static int 651ec125fbbSEdward Tomasz Napierala rctl_racct_add_rule_locked(struct racct *racct, struct rctl_rule *rule) 652ec125fbbSEdward Tomasz Napierala { 653ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 654ec125fbbSEdward Tomasz Napierala 655ec125fbbSEdward Tomasz Napierala KASSERT(rctl_rule_fully_specified(rule), ("rule not fully specified")); 656ec125fbbSEdward Tomasz Napierala rw_assert(&rctl_lock, RA_WLOCKED); 657ec125fbbSEdward Tomasz Napierala 658ec125fbbSEdward Tomasz Napierala link = uma_zalloc(rctl_rule_link_zone, M_NOWAIT); 659ec125fbbSEdward Tomasz Napierala if (link == NULL) 660ec125fbbSEdward Tomasz Napierala return (ENOMEM); 661ec125fbbSEdward Tomasz Napierala rctl_rule_acquire(rule); 662ec125fbbSEdward Tomasz Napierala link->rrl_rule = rule; 663ec125fbbSEdward Tomasz Napierala link->rrl_exceeded = 0; 664ec125fbbSEdward Tomasz Napierala 665ec125fbbSEdward Tomasz Napierala LIST_INSERT_HEAD(&racct->r_rule_links, link, rrl_next); 666ec125fbbSEdward Tomasz Napierala return (0); 667ec125fbbSEdward Tomasz Napierala } 668ec125fbbSEdward Tomasz Napierala 669ec125fbbSEdward Tomasz Napierala /* 670ec125fbbSEdward Tomasz Napierala * Remove limits for a rules matching the filter and release 671ec125fbbSEdward Tomasz Napierala * the refcounts for the rules, possibly freeing them. Returns 672ec125fbbSEdward Tomasz Napierala * the number of limit structures removed. 673ec125fbbSEdward Tomasz Napierala */ 674ec125fbbSEdward Tomasz Napierala static int 675ec125fbbSEdward Tomasz Napierala rctl_racct_remove_rules(struct racct *racct, 676ec125fbbSEdward Tomasz Napierala const struct rctl_rule *filter) 677ec125fbbSEdward Tomasz Napierala { 678ec125fbbSEdward Tomasz Napierala int removed = 0; 679ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link, *linktmp; 680ec125fbbSEdward Tomasz Napierala 681ec125fbbSEdward Tomasz Napierala rw_assert(&rctl_lock, RA_WLOCKED); 682ec125fbbSEdward Tomasz Napierala 683ec125fbbSEdward Tomasz Napierala LIST_FOREACH_SAFE(link, &racct->r_rule_links, rrl_next, linktmp) { 684ec125fbbSEdward Tomasz Napierala if (!rctl_rule_matches(link->rrl_rule, filter)) 685ec125fbbSEdward Tomasz Napierala continue; 686ec125fbbSEdward Tomasz Napierala 687ec125fbbSEdward Tomasz Napierala LIST_REMOVE(link, rrl_next); 688ec125fbbSEdward Tomasz Napierala rctl_rule_release(link->rrl_rule); 689ec125fbbSEdward Tomasz Napierala uma_zfree(rctl_rule_link_zone, link); 690ec125fbbSEdward Tomasz Napierala removed++; 691ec125fbbSEdward Tomasz Napierala } 692ec125fbbSEdward Tomasz Napierala return (removed); 693ec125fbbSEdward Tomasz Napierala } 694ec125fbbSEdward Tomasz Napierala 695ec125fbbSEdward Tomasz Napierala static void 696ec125fbbSEdward Tomasz Napierala rctl_rule_acquire_subject(struct rctl_rule *rule) 697ec125fbbSEdward Tomasz Napierala { 698ec125fbbSEdward Tomasz Napierala 699ec125fbbSEdward Tomasz Napierala switch (rule->rr_subject_type) { 700ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_UNDEFINED: 701ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 702a7ad07bfSEdward Tomasz Napierala break; 703ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 704a7ad07bfSEdward Tomasz Napierala if (rule->rr_subject.rs_prison_racct != NULL) 705a7ad07bfSEdward Tomasz Napierala prison_racct_hold(rule->rr_subject.rs_prison_racct); 706ec125fbbSEdward Tomasz Napierala break; 707ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 708ec125fbbSEdward Tomasz Napierala if (rule->rr_subject.rs_uip != NULL) 709ec125fbbSEdward Tomasz Napierala uihold(rule->rr_subject.rs_uip); 710ec125fbbSEdward Tomasz Napierala break; 711ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 712415896e3SEdward Tomasz Napierala if (rule->rr_subject.rs_loginclass != NULL) 713415896e3SEdward Tomasz Napierala loginclass_hold(rule->rr_subject.rs_loginclass); 714ec125fbbSEdward Tomasz Napierala break; 715ec125fbbSEdward Tomasz Napierala default: 716ec125fbbSEdward Tomasz Napierala panic("rctl_rule_acquire_subject: unknown subject type %d", 717ec125fbbSEdward Tomasz Napierala rule->rr_subject_type); 718ec125fbbSEdward Tomasz Napierala } 719ec125fbbSEdward Tomasz Napierala } 720ec125fbbSEdward Tomasz Napierala 721ec125fbbSEdward Tomasz Napierala static void 722ec125fbbSEdward Tomasz Napierala rctl_rule_release_subject(struct rctl_rule *rule) 723ec125fbbSEdward Tomasz Napierala { 724ec125fbbSEdward Tomasz Napierala 725ec125fbbSEdward Tomasz Napierala switch (rule->rr_subject_type) { 726ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_UNDEFINED: 727ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 728a7ad07bfSEdward Tomasz Napierala break; 729ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 730a7ad07bfSEdward Tomasz Napierala if (rule->rr_subject.rs_prison_racct != NULL) 731a7ad07bfSEdward Tomasz Napierala prison_racct_free(rule->rr_subject.rs_prison_racct); 732ec125fbbSEdward Tomasz Napierala break; 733ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 734ec125fbbSEdward Tomasz Napierala if (rule->rr_subject.rs_uip != NULL) 735ec125fbbSEdward Tomasz Napierala uifree(rule->rr_subject.rs_uip); 736ec125fbbSEdward Tomasz Napierala break; 737ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 738415896e3SEdward Tomasz Napierala if (rule->rr_subject.rs_loginclass != NULL) 739415896e3SEdward Tomasz Napierala loginclass_free(rule->rr_subject.rs_loginclass); 740ec125fbbSEdward Tomasz Napierala break; 741ec125fbbSEdward Tomasz Napierala default: 742ec125fbbSEdward Tomasz Napierala panic("rctl_rule_release_subject: unknown subject type %d", 743ec125fbbSEdward Tomasz Napierala rule->rr_subject_type); 744ec125fbbSEdward Tomasz Napierala } 745ec125fbbSEdward Tomasz Napierala } 746ec125fbbSEdward Tomasz Napierala 747ec125fbbSEdward Tomasz Napierala struct rctl_rule * 748ec125fbbSEdward Tomasz Napierala rctl_rule_alloc(int flags) 749ec125fbbSEdward Tomasz Napierala { 750ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 751ec125fbbSEdward Tomasz Napierala 752ec125fbbSEdward Tomasz Napierala rule = uma_zalloc(rctl_rule_zone, flags); 753ec125fbbSEdward Tomasz Napierala if (rule == NULL) 754ec125fbbSEdward Tomasz Napierala return (NULL); 755ec125fbbSEdward Tomasz Napierala rule->rr_subject_type = RCTL_SUBJECT_TYPE_UNDEFINED; 756ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_proc = NULL; 757ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_uip = NULL; 758415896e3SEdward Tomasz Napierala rule->rr_subject.rs_loginclass = NULL; 759a7ad07bfSEdward Tomasz Napierala rule->rr_subject.rs_prison_racct = NULL; 760ec125fbbSEdward Tomasz Napierala rule->rr_per = RCTL_SUBJECT_TYPE_UNDEFINED; 761ec125fbbSEdward Tomasz Napierala rule->rr_resource = RACCT_UNDEFINED; 762ec125fbbSEdward Tomasz Napierala rule->rr_action = RCTL_ACTION_UNDEFINED; 763ec125fbbSEdward Tomasz Napierala rule->rr_amount = RCTL_AMOUNT_UNDEFINED; 764ec125fbbSEdward Tomasz Napierala refcount_init(&rule->rr_refcount, 1); 765ec125fbbSEdward Tomasz Napierala 766ec125fbbSEdward Tomasz Napierala return (rule); 767ec125fbbSEdward Tomasz Napierala } 768ec125fbbSEdward Tomasz Napierala 769ec125fbbSEdward Tomasz Napierala struct rctl_rule * 770ec125fbbSEdward Tomasz Napierala rctl_rule_duplicate(const struct rctl_rule *rule, int flags) 771ec125fbbSEdward Tomasz Napierala { 772ec125fbbSEdward Tomasz Napierala struct rctl_rule *copy; 773ec125fbbSEdward Tomasz Napierala 774ec125fbbSEdward Tomasz Napierala copy = uma_zalloc(rctl_rule_zone, flags); 775ec125fbbSEdward Tomasz Napierala if (copy == NULL) 776ec125fbbSEdward Tomasz Napierala return (NULL); 777ec125fbbSEdward Tomasz Napierala copy->rr_subject_type = rule->rr_subject_type; 778ec125fbbSEdward Tomasz Napierala copy->rr_subject.rs_proc = rule->rr_subject.rs_proc; 779ec125fbbSEdward Tomasz Napierala copy->rr_subject.rs_uip = rule->rr_subject.rs_uip; 780415896e3SEdward Tomasz Napierala copy->rr_subject.rs_loginclass = rule->rr_subject.rs_loginclass; 781a7ad07bfSEdward Tomasz Napierala copy->rr_subject.rs_prison_racct = rule->rr_subject.rs_prison_racct; 782ec125fbbSEdward Tomasz Napierala copy->rr_per = rule->rr_per; 783ec125fbbSEdward Tomasz Napierala copy->rr_resource = rule->rr_resource; 784ec125fbbSEdward Tomasz Napierala copy->rr_action = rule->rr_action; 785ec125fbbSEdward Tomasz Napierala copy->rr_amount = rule->rr_amount; 786ec125fbbSEdward Tomasz Napierala refcount_init(©->rr_refcount, 1); 787ec125fbbSEdward Tomasz Napierala rctl_rule_acquire_subject(copy); 788ec125fbbSEdward Tomasz Napierala 789ec125fbbSEdward Tomasz Napierala return (copy); 790ec125fbbSEdward Tomasz Napierala } 791ec125fbbSEdward Tomasz Napierala 792ec125fbbSEdward Tomasz Napierala void 793ec125fbbSEdward Tomasz Napierala rctl_rule_acquire(struct rctl_rule *rule) 794ec125fbbSEdward Tomasz Napierala { 795ec125fbbSEdward Tomasz Napierala 796ec125fbbSEdward Tomasz Napierala KASSERT(rule->rr_refcount > 0, ("rule->rr_refcount <= 0")); 797ec125fbbSEdward Tomasz Napierala 798ec125fbbSEdward Tomasz Napierala refcount_acquire(&rule->rr_refcount); 799ec125fbbSEdward Tomasz Napierala } 800ec125fbbSEdward Tomasz Napierala 801ec125fbbSEdward Tomasz Napierala static void 802ec125fbbSEdward Tomasz Napierala rctl_rule_free(void *context, int pending) 803ec125fbbSEdward Tomasz Napierala { 804ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 805ec125fbbSEdward Tomasz Napierala 806ec125fbbSEdward Tomasz Napierala rule = (struct rctl_rule *)context; 807ec125fbbSEdward Tomasz Napierala 808ec125fbbSEdward Tomasz Napierala KASSERT(rule->rr_refcount == 0, ("rule->rr_refcount != 0")); 809ec125fbbSEdward Tomasz Napierala 810ec125fbbSEdward Tomasz Napierala /* 811ec125fbbSEdward Tomasz Napierala * We don't need locking here; rule is guaranteed to be inaccessible. 812ec125fbbSEdward Tomasz Napierala */ 813ec125fbbSEdward Tomasz Napierala 814ec125fbbSEdward Tomasz Napierala rctl_rule_release_subject(rule); 815ec125fbbSEdward Tomasz Napierala uma_zfree(rctl_rule_zone, rule); 816ec125fbbSEdward Tomasz Napierala } 817ec125fbbSEdward Tomasz Napierala 818ec125fbbSEdward Tomasz Napierala void 819ec125fbbSEdward Tomasz Napierala rctl_rule_release(struct rctl_rule *rule) 820ec125fbbSEdward Tomasz Napierala { 821ec125fbbSEdward Tomasz Napierala 822ec125fbbSEdward Tomasz Napierala KASSERT(rule->rr_refcount > 0, ("rule->rr_refcount <= 0")); 823ec125fbbSEdward Tomasz Napierala 824ec125fbbSEdward Tomasz Napierala if (refcount_release(&rule->rr_refcount)) { 825ec125fbbSEdward Tomasz Napierala /* 826ec125fbbSEdward Tomasz Napierala * rctl_rule_release() is often called when iterating 827ec125fbbSEdward Tomasz Napierala * over all the uidinfo structures in the system, 828ec125fbbSEdward Tomasz Napierala * holding uihashtbl_lock. Since rctl_rule_free() 829ec125fbbSEdward Tomasz Napierala * might end up calling uifree(), this would lead 830ec125fbbSEdward Tomasz Napierala * to lock recursion. Use taskqueue to avoid this. 831ec125fbbSEdward Tomasz Napierala */ 832ec125fbbSEdward Tomasz Napierala TASK_INIT(&rule->rr_task, 0, rctl_rule_free, rule); 833ec125fbbSEdward Tomasz Napierala taskqueue_enqueue(taskqueue_thread, &rule->rr_task); 834ec125fbbSEdward Tomasz Napierala } 835ec125fbbSEdward Tomasz Napierala } 836ec125fbbSEdward Tomasz Napierala 837ec125fbbSEdward Tomasz Napierala static int 838ec125fbbSEdward Tomasz Napierala rctl_rule_fully_specified(const struct rctl_rule *rule) 839ec125fbbSEdward Tomasz Napierala { 840ec125fbbSEdward Tomasz Napierala 841ec125fbbSEdward Tomasz Napierala switch (rule->rr_subject_type) { 842ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_UNDEFINED: 843ec125fbbSEdward Tomasz Napierala return (0); 844ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 845ec125fbbSEdward Tomasz Napierala if (rule->rr_subject.rs_proc == NULL) 846ec125fbbSEdward Tomasz Napierala return (0); 847ec125fbbSEdward Tomasz Napierala break; 848ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 849ec125fbbSEdward Tomasz Napierala if (rule->rr_subject.rs_uip == NULL) 850ec125fbbSEdward Tomasz Napierala return (0); 851ec125fbbSEdward Tomasz Napierala break; 852ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 853415896e3SEdward Tomasz Napierala if (rule->rr_subject.rs_loginclass == NULL) 854ec125fbbSEdward Tomasz Napierala return (0); 855ec125fbbSEdward Tomasz Napierala break; 856ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 857a7ad07bfSEdward Tomasz Napierala if (rule->rr_subject.rs_prison_racct == NULL) 858ec125fbbSEdward Tomasz Napierala return (0); 859ec125fbbSEdward Tomasz Napierala break; 860ec125fbbSEdward Tomasz Napierala default: 861ec125fbbSEdward Tomasz Napierala panic("rctl_rule_fully_specified: unknown subject type %d", 862ec125fbbSEdward Tomasz Napierala rule->rr_subject_type); 863ec125fbbSEdward Tomasz Napierala } 864ec125fbbSEdward Tomasz Napierala if (rule->rr_resource == RACCT_UNDEFINED) 865ec125fbbSEdward Tomasz Napierala return (0); 866ec125fbbSEdward Tomasz Napierala if (rule->rr_action == RCTL_ACTION_UNDEFINED) 867ec125fbbSEdward Tomasz Napierala return (0); 868ec125fbbSEdward Tomasz Napierala if (rule->rr_amount == RCTL_AMOUNT_UNDEFINED) 869ec125fbbSEdward Tomasz Napierala return (0); 870ec125fbbSEdward Tomasz Napierala if (rule->rr_per == RCTL_SUBJECT_TYPE_UNDEFINED) 871ec125fbbSEdward Tomasz Napierala return (0); 872ec125fbbSEdward Tomasz Napierala 873ec125fbbSEdward Tomasz Napierala return (1); 874ec125fbbSEdward Tomasz Napierala } 875ec125fbbSEdward Tomasz Napierala 876ec125fbbSEdward Tomasz Napierala static int 877ec125fbbSEdward Tomasz Napierala rctl_string_to_rule(char *rulestr, struct rctl_rule **rulep) 878ec125fbbSEdward Tomasz Napierala { 879ec125fbbSEdward Tomasz Napierala int error = 0; 880ec125fbbSEdward Tomasz Napierala char *subjectstr, *subject_idstr, *resourcestr, *actionstr, 881ec125fbbSEdward Tomasz Napierala *amountstr, *perstr; 882ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 883ec125fbbSEdward Tomasz Napierala id_t id; 884ec125fbbSEdward Tomasz Napierala 885ec125fbbSEdward Tomasz Napierala rule = rctl_rule_alloc(M_WAITOK); 886ec125fbbSEdward Tomasz Napierala 887ec125fbbSEdward Tomasz Napierala subjectstr = strsep(&rulestr, ":"); 888ec125fbbSEdward Tomasz Napierala subject_idstr = strsep(&rulestr, ":"); 889ec125fbbSEdward Tomasz Napierala resourcestr = strsep(&rulestr, ":"); 890ec125fbbSEdward Tomasz Napierala actionstr = strsep(&rulestr, "=/"); 891ec125fbbSEdward Tomasz Napierala amountstr = strsep(&rulestr, "/"); 892ec125fbbSEdward Tomasz Napierala perstr = rulestr; 893ec125fbbSEdward Tomasz Napierala 894ec125fbbSEdward Tomasz Napierala if (subjectstr == NULL || subjectstr[0] == '\0') 895ec125fbbSEdward Tomasz Napierala rule->rr_subject_type = RCTL_SUBJECT_TYPE_UNDEFINED; 896ec125fbbSEdward Tomasz Napierala else { 897ec125fbbSEdward Tomasz Napierala error = str2value(subjectstr, &rule->rr_subject_type, subjectnames); 898ec125fbbSEdward Tomasz Napierala if (error != 0) 899ec125fbbSEdward Tomasz Napierala goto out; 900ec125fbbSEdward Tomasz Napierala } 901ec125fbbSEdward Tomasz Napierala 902ec125fbbSEdward Tomasz Napierala if (subject_idstr == NULL || subject_idstr[0] == '\0') { 903ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_proc = NULL; 904ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_uip = NULL; 905415896e3SEdward Tomasz Napierala rule->rr_subject.rs_loginclass = NULL; 906a7ad07bfSEdward Tomasz Napierala rule->rr_subject.rs_prison_racct = NULL; 907ec125fbbSEdward Tomasz Napierala } else { 908ec125fbbSEdward Tomasz Napierala switch (rule->rr_subject_type) { 909ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_UNDEFINED: 910ec125fbbSEdward Tomasz Napierala error = EINVAL; 911ec125fbbSEdward Tomasz Napierala goto out; 912ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 913ec125fbbSEdward Tomasz Napierala error = str2id(subject_idstr, &id); 914ec125fbbSEdward Tomasz Napierala if (error != 0) 915ec125fbbSEdward Tomasz Napierala goto out; 916ec125fbbSEdward Tomasz Napierala sx_assert(&allproc_lock, SA_LOCKED); 917ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_proc = pfind(id); 918ec125fbbSEdward Tomasz Napierala if (rule->rr_subject.rs_proc == NULL) { 919ec125fbbSEdward Tomasz Napierala error = ESRCH; 920ec125fbbSEdward Tomasz Napierala goto out; 921ec125fbbSEdward Tomasz Napierala } 922ec125fbbSEdward Tomasz Napierala PROC_UNLOCK(rule->rr_subject.rs_proc); 923ec125fbbSEdward Tomasz Napierala break; 924ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 925ec125fbbSEdward Tomasz Napierala error = str2id(subject_idstr, &id); 926ec125fbbSEdward Tomasz Napierala if (error != 0) 927ec125fbbSEdward Tomasz Napierala goto out; 928ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_uip = uifind(id); 929ec125fbbSEdward Tomasz Napierala break; 930ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 931415896e3SEdward Tomasz Napierala rule->rr_subject.rs_loginclass = 932ec125fbbSEdward Tomasz Napierala loginclass_find(subject_idstr); 933415896e3SEdward Tomasz Napierala if (rule->rr_subject.rs_loginclass == NULL) { 934ec125fbbSEdward Tomasz Napierala error = ENAMETOOLONG; 935ec125fbbSEdward Tomasz Napierala goto out; 936ec125fbbSEdward Tomasz Napierala } 937ec125fbbSEdward Tomasz Napierala break; 938ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 939a7ad07bfSEdward Tomasz Napierala rule->rr_subject.rs_prison_racct = 940a7ad07bfSEdward Tomasz Napierala prison_racct_find(subject_idstr); 941a7ad07bfSEdward Tomasz Napierala if (rule->rr_subject.rs_prison_racct == NULL) { 942a7ad07bfSEdward Tomasz Napierala error = ENAMETOOLONG; 943ec125fbbSEdward Tomasz Napierala goto out; 944ec125fbbSEdward Tomasz Napierala } 945ec125fbbSEdward Tomasz Napierala break; 946ec125fbbSEdward Tomasz Napierala default: 947ec125fbbSEdward Tomasz Napierala panic("rctl_string_to_rule: unknown subject type %d", 948ec125fbbSEdward Tomasz Napierala rule->rr_subject_type); 949ec125fbbSEdward Tomasz Napierala } 950ec125fbbSEdward Tomasz Napierala } 951ec125fbbSEdward Tomasz Napierala 952ec125fbbSEdward Tomasz Napierala if (resourcestr == NULL || resourcestr[0] == '\0') 953ec125fbbSEdward Tomasz Napierala rule->rr_resource = RACCT_UNDEFINED; 954ec125fbbSEdward Tomasz Napierala else { 955ec125fbbSEdward Tomasz Napierala error = str2value(resourcestr, &rule->rr_resource, 956ec125fbbSEdward Tomasz Napierala resourcenames); 957ec125fbbSEdward Tomasz Napierala if (error != 0) 958ec125fbbSEdward Tomasz Napierala goto out; 959ec125fbbSEdward Tomasz Napierala } 960ec125fbbSEdward Tomasz Napierala 961ec125fbbSEdward Tomasz Napierala if (actionstr == NULL || actionstr[0] == '\0') 962ec125fbbSEdward Tomasz Napierala rule->rr_action = RCTL_ACTION_UNDEFINED; 963ec125fbbSEdward Tomasz Napierala else { 964ec125fbbSEdward Tomasz Napierala error = str2value(actionstr, &rule->rr_action, actionnames); 965ec125fbbSEdward Tomasz Napierala if (error != 0) 966ec125fbbSEdward Tomasz Napierala goto out; 967ec125fbbSEdward Tomasz Napierala } 968ec125fbbSEdward Tomasz Napierala 969ec125fbbSEdward Tomasz Napierala if (amountstr == NULL || amountstr[0] == '\0') 970ec125fbbSEdward Tomasz Napierala rule->rr_amount = RCTL_AMOUNT_UNDEFINED; 971ec125fbbSEdward Tomasz Napierala else { 972ec125fbbSEdward Tomasz Napierala error = str2int64(amountstr, &rule->rr_amount); 973ec125fbbSEdward Tomasz Napierala if (error != 0) 974ec125fbbSEdward Tomasz Napierala goto out; 97585a2f1b4SEdward Tomasz Napierala if (RACCT_IS_IN_MILLIONS(rule->rr_resource)) 976cff08ec0SEdward Tomasz Napierala rule->rr_amount *= 1000000; 977ec125fbbSEdward Tomasz Napierala } 978ec125fbbSEdward Tomasz Napierala 979ec125fbbSEdward Tomasz Napierala if (perstr == NULL || perstr[0] == '\0') 980ec125fbbSEdward Tomasz Napierala rule->rr_per = RCTL_SUBJECT_TYPE_UNDEFINED; 981ec125fbbSEdward Tomasz Napierala else { 982ec125fbbSEdward Tomasz Napierala error = str2value(perstr, &rule->rr_per, subjectnames); 983ec125fbbSEdward Tomasz Napierala if (error != 0) 984ec125fbbSEdward Tomasz Napierala goto out; 985ec125fbbSEdward Tomasz Napierala } 986ec125fbbSEdward Tomasz Napierala 987ec125fbbSEdward Tomasz Napierala out: 988ec125fbbSEdward Tomasz Napierala if (error == 0) 989ec125fbbSEdward Tomasz Napierala *rulep = rule; 990ec125fbbSEdward Tomasz Napierala else 991ec125fbbSEdward Tomasz Napierala rctl_rule_release(rule); 992ec125fbbSEdward Tomasz Napierala 993ec125fbbSEdward Tomasz Napierala return (error); 994ec125fbbSEdward Tomasz Napierala } 995ec125fbbSEdward Tomasz Napierala 996ec125fbbSEdward Tomasz Napierala /* 997ec125fbbSEdward Tomasz Napierala * Link a rule with all the subjects it applies to. 998ec125fbbSEdward Tomasz Napierala */ 999ec125fbbSEdward Tomasz Napierala int 1000ec125fbbSEdward Tomasz Napierala rctl_rule_add(struct rctl_rule *rule) 1001ec125fbbSEdward Tomasz Napierala { 1002ec125fbbSEdward Tomasz Napierala struct proc *p; 1003ec125fbbSEdward Tomasz Napierala struct ucred *cred; 1004ec125fbbSEdward Tomasz Napierala struct uidinfo *uip; 1005ec125fbbSEdward Tomasz Napierala struct prison *pr; 1006a7ad07bfSEdward Tomasz Napierala struct prison_racct *prr; 1007ec125fbbSEdward Tomasz Napierala struct loginclass *lc; 1008ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule2; 1009ec125fbbSEdward Tomasz Napierala int match; 1010ec125fbbSEdward Tomasz Napierala 1011ec125fbbSEdward Tomasz Napierala KASSERT(rctl_rule_fully_specified(rule), ("rule not fully specified")); 1012ec125fbbSEdward Tomasz Napierala 1013ec125fbbSEdward Tomasz Napierala /* 1014ec125fbbSEdward Tomasz Napierala * Some rules just don't make sense. Note that the one below 10154fe84775SEdward Tomasz Napierala * cannot be rewritten using RACCT_IS_DENIABLE(); the RACCT_PCTCPU, 1016ec125fbbSEdward Tomasz Napierala * for example, is not deniable in the racct sense, but the 1017ec125fbbSEdward Tomasz Napierala * limit is enforced in a different way, so "deny" rules for %CPU 1018ec125fbbSEdward Tomasz Napierala * do make sense. 1019ec125fbbSEdward Tomasz Napierala */ 1020ec125fbbSEdward Tomasz Napierala if (rule->rr_action == RCTL_ACTION_DENY && 1021ec125fbbSEdward Tomasz Napierala (rule->rr_resource == RACCT_CPU || 1022ec125fbbSEdward Tomasz Napierala rule->rr_resource == RACCT_WALLCLOCK)) 1023ec125fbbSEdward Tomasz Napierala return (EOPNOTSUPP); 1024ec125fbbSEdward Tomasz Napierala 1025ec125fbbSEdward Tomasz Napierala if (rule->rr_per == RCTL_SUBJECT_TYPE_PROCESS && 10264fe84775SEdward Tomasz Napierala RACCT_IS_SLOPPY(rule->rr_resource)) 1027ec125fbbSEdward Tomasz Napierala return (EOPNOTSUPP); 1028ec125fbbSEdward Tomasz Napierala 1029ec125fbbSEdward Tomasz Napierala /* 1030ec125fbbSEdward Tomasz Napierala * Make sure there are no duplicated rules. Also, for the "deny" 1031ec125fbbSEdward Tomasz Napierala * rules, remove ones differing only by "amount". 1032ec125fbbSEdward Tomasz Napierala */ 1033ec125fbbSEdward Tomasz Napierala if (rule->rr_action == RCTL_ACTION_DENY) { 1034ec125fbbSEdward Tomasz Napierala rule2 = rctl_rule_duplicate(rule, M_WAITOK); 1035ec125fbbSEdward Tomasz Napierala rule2->rr_amount = RCTL_AMOUNT_UNDEFINED; 1036ec125fbbSEdward Tomasz Napierala rctl_rule_remove(rule2); 1037ec125fbbSEdward Tomasz Napierala rctl_rule_release(rule2); 1038ec125fbbSEdward Tomasz Napierala } else 1039ec125fbbSEdward Tomasz Napierala rctl_rule_remove(rule); 1040ec125fbbSEdward Tomasz Napierala 1041ec125fbbSEdward Tomasz Napierala switch (rule->rr_subject_type) { 1042ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 1043ec125fbbSEdward Tomasz Napierala p = rule->rr_subject.rs_proc; 1044ec125fbbSEdward Tomasz Napierala KASSERT(p != NULL, ("rctl_rule_add: NULL proc")); 1045ec125fbbSEdward Tomasz Napierala 1046ec125fbbSEdward Tomasz Napierala rctl_racct_add_rule(p->p_racct, rule); 1047ec125fbbSEdward Tomasz Napierala /* 1048ec125fbbSEdward Tomasz Napierala * In case of per-process rule, we don't have anything more 1049ec125fbbSEdward Tomasz Napierala * to do. 1050ec125fbbSEdward Tomasz Napierala */ 1051ec125fbbSEdward Tomasz Napierala return (0); 1052ec125fbbSEdward Tomasz Napierala 1053ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 1054ec125fbbSEdward Tomasz Napierala uip = rule->rr_subject.rs_uip; 1055ec125fbbSEdward Tomasz Napierala KASSERT(uip != NULL, ("rctl_rule_add: NULL uip")); 1056ec125fbbSEdward Tomasz Napierala rctl_racct_add_rule(uip->ui_racct, rule); 1057ec125fbbSEdward Tomasz Napierala break; 1058ec125fbbSEdward Tomasz Napierala 1059ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 1060415896e3SEdward Tomasz Napierala lc = rule->rr_subject.rs_loginclass; 1061ec125fbbSEdward Tomasz Napierala KASSERT(lc != NULL, ("rctl_rule_add: NULL loginclass")); 1062ec125fbbSEdward Tomasz Napierala rctl_racct_add_rule(lc->lc_racct, rule); 1063ec125fbbSEdward Tomasz Napierala break; 1064ec125fbbSEdward Tomasz Napierala 1065ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 1066a7ad07bfSEdward Tomasz Napierala prr = rule->rr_subject.rs_prison_racct; 1067a7ad07bfSEdward Tomasz Napierala KASSERT(prr != NULL, ("rctl_rule_add: NULL pr")); 1068a7ad07bfSEdward Tomasz Napierala rctl_racct_add_rule(prr->prr_racct, rule); 1069ec125fbbSEdward Tomasz Napierala break; 1070ec125fbbSEdward Tomasz Napierala 1071ec125fbbSEdward Tomasz Napierala default: 1072ec125fbbSEdward Tomasz Napierala panic("rctl_rule_add: unknown subject type %d", 1073ec125fbbSEdward Tomasz Napierala rule->rr_subject_type); 1074ec125fbbSEdward Tomasz Napierala } 1075ec125fbbSEdward Tomasz Napierala 1076ec125fbbSEdward Tomasz Napierala /* 1077ec125fbbSEdward Tomasz Napierala * Now go through all the processes and add the new rule to the ones 1078ec125fbbSEdward Tomasz Napierala * it applies to. 1079ec125fbbSEdward Tomasz Napierala */ 1080ec125fbbSEdward Tomasz Napierala sx_assert(&allproc_lock, SA_LOCKED); 1081ec125fbbSEdward Tomasz Napierala FOREACH_PROC_IN_SYSTEM(p) { 1082ec125fbbSEdward Tomasz Napierala cred = p->p_ucred; 1083ec125fbbSEdward Tomasz Napierala switch (rule->rr_subject_type) { 1084ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 1085ec125fbbSEdward Tomasz Napierala if (cred->cr_uidinfo == rule->rr_subject.rs_uip || 1086ec125fbbSEdward Tomasz Napierala cred->cr_ruidinfo == rule->rr_subject.rs_uip) 1087ec125fbbSEdward Tomasz Napierala break; 1088ec125fbbSEdward Tomasz Napierala continue; 1089ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 1090415896e3SEdward Tomasz Napierala if (cred->cr_loginclass == rule->rr_subject.rs_loginclass) 1091ec125fbbSEdward Tomasz Napierala break; 1092ec125fbbSEdward Tomasz Napierala continue; 1093ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 1094ec125fbbSEdward Tomasz Napierala match = 0; 1095ec125fbbSEdward Tomasz Napierala for (pr = cred->cr_prison; pr != NULL; pr = pr->pr_parent) { 1096a7ad07bfSEdward Tomasz Napierala if (pr->pr_prison_racct == rule->rr_subject.rs_prison_racct) { 1097ec125fbbSEdward Tomasz Napierala match = 1; 1098ec125fbbSEdward Tomasz Napierala break; 1099ec125fbbSEdward Tomasz Napierala } 1100ec125fbbSEdward Tomasz Napierala } 1101ec125fbbSEdward Tomasz Napierala if (match) 1102ec125fbbSEdward Tomasz Napierala break; 1103ec125fbbSEdward Tomasz Napierala continue; 1104ec125fbbSEdward Tomasz Napierala default: 1105ec125fbbSEdward Tomasz Napierala panic("rctl_rule_add: unknown subject type %d", 1106ec125fbbSEdward Tomasz Napierala rule->rr_subject_type); 1107ec125fbbSEdward Tomasz Napierala } 1108ec125fbbSEdward Tomasz Napierala 1109ec125fbbSEdward Tomasz Napierala rctl_racct_add_rule(p->p_racct, rule); 1110ec125fbbSEdward Tomasz Napierala } 1111ec125fbbSEdward Tomasz Napierala 1112ec125fbbSEdward Tomasz Napierala return (0); 1113ec125fbbSEdward Tomasz Napierala } 1114ec125fbbSEdward Tomasz Napierala 1115ec125fbbSEdward Tomasz Napierala static void 1116ec125fbbSEdward Tomasz Napierala rctl_rule_remove_callback(struct racct *racct, void *arg2, void *arg3) 1117ec125fbbSEdward Tomasz Napierala { 1118ec125fbbSEdward Tomasz Napierala struct rctl_rule *filter = (struct rctl_rule *)arg2; 1119ec125fbbSEdward Tomasz Napierala int found = 0; 1120ec125fbbSEdward Tomasz Napierala 1121ec125fbbSEdward Tomasz Napierala rw_wlock(&rctl_lock); 1122ec125fbbSEdward Tomasz Napierala found += rctl_racct_remove_rules(racct, filter); 1123ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1124ec125fbbSEdward Tomasz Napierala 1125ec125fbbSEdward Tomasz Napierala *((int *)arg3) += found; 1126ec125fbbSEdward Tomasz Napierala } 1127ec125fbbSEdward Tomasz Napierala 1128ec125fbbSEdward Tomasz Napierala /* 1129ec125fbbSEdward Tomasz Napierala * Remove all rules that match the filter. 1130ec125fbbSEdward Tomasz Napierala */ 1131ec125fbbSEdward Tomasz Napierala int 1132ec125fbbSEdward Tomasz Napierala rctl_rule_remove(struct rctl_rule *filter) 1133ec125fbbSEdward Tomasz Napierala { 1134ec125fbbSEdward Tomasz Napierala int found = 0; 1135ec125fbbSEdward Tomasz Napierala struct proc *p; 1136ec125fbbSEdward Tomasz Napierala 1137ec125fbbSEdward Tomasz Napierala if (filter->rr_subject_type == RCTL_SUBJECT_TYPE_PROCESS && 1138ec125fbbSEdward Tomasz Napierala filter->rr_subject.rs_proc != NULL) { 1139ec125fbbSEdward Tomasz Napierala p = filter->rr_subject.rs_proc; 1140ec125fbbSEdward Tomasz Napierala rw_wlock(&rctl_lock); 1141ec125fbbSEdward Tomasz Napierala found = rctl_racct_remove_rules(p->p_racct, filter); 1142ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1143ec125fbbSEdward Tomasz Napierala if (found) 1144ec125fbbSEdward Tomasz Napierala return (0); 1145ec125fbbSEdward Tomasz Napierala return (ESRCH); 1146ec125fbbSEdward Tomasz Napierala } 1147ec125fbbSEdward Tomasz Napierala 1148ec125fbbSEdward Tomasz Napierala loginclass_racct_foreach(rctl_rule_remove_callback, filter, 1149ec125fbbSEdward Tomasz Napierala (void *)&found); 1150ec125fbbSEdward Tomasz Napierala ui_racct_foreach(rctl_rule_remove_callback, filter, 1151ec125fbbSEdward Tomasz Napierala (void *)&found); 1152ec125fbbSEdward Tomasz Napierala prison_racct_foreach(rctl_rule_remove_callback, filter, 1153ec125fbbSEdward Tomasz Napierala (void *)&found); 1154ec125fbbSEdward Tomasz Napierala 1155ec125fbbSEdward Tomasz Napierala sx_assert(&allproc_lock, SA_LOCKED); 1156ec125fbbSEdward Tomasz Napierala rw_wlock(&rctl_lock); 1157ec125fbbSEdward Tomasz Napierala FOREACH_PROC_IN_SYSTEM(p) { 1158ec125fbbSEdward Tomasz Napierala found += rctl_racct_remove_rules(p->p_racct, filter); 1159ec125fbbSEdward Tomasz Napierala } 1160ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1161ec125fbbSEdward Tomasz Napierala 1162ec125fbbSEdward Tomasz Napierala if (found) 1163ec125fbbSEdward Tomasz Napierala return (0); 1164ec125fbbSEdward Tomasz Napierala return (ESRCH); 1165ec125fbbSEdward Tomasz Napierala } 1166ec125fbbSEdward Tomasz Napierala 1167ec125fbbSEdward Tomasz Napierala /* 1168ec125fbbSEdward Tomasz Napierala * Appends a rule to the sbuf. 1169ec125fbbSEdward Tomasz Napierala */ 1170ec125fbbSEdward Tomasz Napierala static void 1171ec125fbbSEdward Tomasz Napierala rctl_rule_to_sbuf(struct sbuf *sb, const struct rctl_rule *rule) 1172ec125fbbSEdward Tomasz Napierala { 1173ec125fbbSEdward Tomasz Napierala int64_t amount; 1174ec125fbbSEdward Tomasz Napierala 1175ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "%s:", rctl_subject_type_name(rule->rr_subject_type)); 1176ec125fbbSEdward Tomasz Napierala 1177ec125fbbSEdward Tomasz Napierala switch (rule->rr_subject_type) { 1178ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 1179ec125fbbSEdward Tomasz Napierala if (rule->rr_subject.rs_proc == NULL) 1180ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, ":"); 1181ec125fbbSEdward Tomasz Napierala else 1182ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "%d:", 1183ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_proc->p_pid); 1184ec125fbbSEdward Tomasz Napierala break; 1185ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 1186ec125fbbSEdward Tomasz Napierala if (rule->rr_subject.rs_uip == NULL) 1187ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, ":"); 1188ec125fbbSEdward Tomasz Napierala else 1189ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "%d:", 1190ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_uip->ui_uid); 1191ec125fbbSEdward Tomasz Napierala break; 1192ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 1193415896e3SEdward Tomasz Napierala if (rule->rr_subject.rs_loginclass == NULL) 1194ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, ":"); 1195ec125fbbSEdward Tomasz Napierala else 1196ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "%s:", 1197415896e3SEdward Tomasz Napierala rule->rr_subject.rs_loginclass->lc_name); 1198ec125fbbSEdward Tomasz Napierala break; 1199ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 1200a7ad07bfSEdward Tomasz Napierala if (rule->rr_subject.rs_prison_racct == NULL) 1201ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, ":"); 1202ec125fbbSEdward Tomasz Napierala else 1203ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "%s:", 1204a7ad07bfSEdward Tomasz Napierala rule->rr_subject.rs_prison_racct->prr_name); 1205ec125fbbSEdward Tomasz Napierala break; 1206ec125fbbSEdward Tomasz Napierala default: 1207ec125fbbSEdward Tomasz Napierala panic("rctl_rule_to_sbuf: unknown subject type %d", 1208ec125fbbSEdward Tomasz Napierala rule->rr_subject_type); 1209ec125fbbSEdward Tomasz Napierala } 1210ec125fbbSEdward Tomasz Napierala 1211ec125fbbSEdward Tomasz Napierala amount = rule->rr_amount; 1212ec125fbbSEdward Tomasz Napierala if (amount != RCTL_AMOUNT_UNDEFINED && 121385a2f1b4SEdward Tomasz Napierala RACCT_IS_IN_MILLIONS(rule->rr_resource)) 121485a2f1b4SEdward Tomasz Napierala amount /= 1000000; 1215ec125fbbSEdward Tomasz Napierala 1216ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "%s:%s=%jd", 1217ec125fbbSEdward Tomasz Napierala rctl_resource_name(rule->rr_resource), 1218ec125fbbSEdward Tomasz Napierala rctl_action_name(rule->rr_action), 1219ec125fbbSEdward Tomasz Napierala amount); 1220ec125fbbSEdward Tomasz Napierala 1221ec125fbbSEdward Tomasz Napierala if (rule->rr_per != rule->rr_subject_type) 1222ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "/%s", rctl_subject_type_name(rule->rr_per)); 1223ec125fbbSEdward Tomasz Napierala } 1224ec125fbbSEdward Tomasz Napierala 1225ec125fbbSEdward Tomasz Napierala /* 1226ec125fbbSEdward Tomasz Napierala * Routine used by RCTL syscalls to read in input string. 1227ec125fbbSEdward Tomasz Napierala */ 1228ec125fbbSEdward Tomasz Napierala static int 1229ec125fbbSEdward Tomasz Napierala rctl_read_inbuf(char **inputstr, const char *inbufp, size_t inbuflen) 1230ec125fbbSEdward Tomasz Napierala { 1231ec125fbbSEdward Tomasz Napierala int error; 1232ec125fbbSEdward Tomasz Napierala char *str; 1233ec125fbbSEdward Tomasz Napierala 1234ec125fbbSEdward Tomasz Napierala if (inbuflen <= 0) 1235ec125fbbSEdward Tomasz Napierala return (EINVAL); 1236786813aaSEdward Tomasz Napierala if (inbuflen > RCTL_MAX_INBUFLEN) 1237786813aaSEdward Tomasz Napierala return (E2BIG); 1238ec125fbbSEdward Tomasz Napierala 1239ec125fbbSEdward Tomasz Napierala str = malloc(inbuflen + 1, M_RCTL, M_WAITOK); 1240ec125fbbSEdward Tomasz Napierala error = copyinstr(inbufp, str, inbuflen, NULL); 1241ec125fbbSEdward Tomasz Napierala if (error != 0) { 1242ec125fbbSEdward Tomasz Napierala free(str, M_RCTL); 1243ec125fbbSEdward Tomasz Napierala return (error); 1244ec125fbbSEdward Tomasz Napierala } 1245ec125fbbSEdward Tomasz Napierala 1246ec125fbbSEdward Tomasz Napierala *inputstr = str; 1247ec125fbbSEdward Tomasz Napierala 1248ec125fbbSEdward Tomasz Napierala return (0); 1249ec125fbbSEdward Tomasz Napierala } 1250ec125fbbSEdward Tomasz Napierala 1251ec125fbbSEdward Tomasz Napierala /* 1252ec125fbbSEdward Tomasz Napierala * Routine used by RCTL syscalls to write out output string. 1253ec125fbbSEdward Tomasz Napierala */ 1254ec125fbbSEdward Tomasz Napierala static int 1255ec125fbbSEdward Tomasz Napierala rctl_write_outbuf(struct sbuf *outputsbuf, char *outbufp, size_t outbuflen) 1256ec125fbbSEdward Tomasz Napierala { 1257ec125fbbSEdward Tomasz Napierala int error; 1258ec125fbbSEdward Tomasz Napierala 1259ec125fbbSEdward Tomasz Napierala if (outputsbuf == NULL) 1260ec125fbbSEdward Tomasz Napierala return (0); 1261ec125fbbSEdward Tomasz Napierala 1262ec125fbbSEdward Tomasz Napierala sbuf_finish(outputsbuf); 1263ec125fbbSEdward Tomasz Napierala if (outbuflen < sbuf_len(outputsbuf) + 1) { 1264ec125fbbSEdward Tomasz Napierala sbuf_delete(outputsbuf); 1265ec125fbbSEdward Tomasz Napierala return (ERANGE); 1266ec125fbbSEdward Tomasz Napierala } 1267ec125fbbSEdward Tomasz Napierala error = copyout(sbuf_data(outputsbuf), outbufp, 1268ec125fbbSEdward Tomasz Napierala sbuf_len(outputsbuf) + 1); 1269ec125fbbSEdward Tomasz Napierala sbuf_delete(outputsbuf); 1270ec125fbbSEdward Tomasz Napierala return (error); 1271ec125fbbSEdward Tomasz Napierala } 1272ec125fbbSEdward Tomasz Napierala 1273ec125fbbSEdward Tomasz Napierala static struct sbuf * 1274ec125fbbSEdward Tomasz Napierala rctl_racct_to_sbuf(struct racct *racct, int sloppy) 1275ec125fbbSEdward Tomasz Napierala { 1276ec125fbbSEdward Tomasz Napierala int i; 1277ec125fbbSEdward Tomasz Napierala int64_t amount; 1278ec125fbbSEdward Tomasz Napierala struct sbuf *sb; 1279ec125fbbSEdward Tomasz Napierala 1280ec125fbbSEdward Tomasz Napierala sb = sbuf_new_auto(); 1281ec125fbbSEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 12824fe84775SEdward Tomasz Napierala if (sloppy == 0 && RACCT_IS_SLOPPY(i)) 1283ec125fbbSEdward Tomasz Napierala continue; 1284ec125fbbSEdward Tomasz Napierala amount = racct->r_resources[i]; 128585a2f1b4SEdward Tomasz Napierala if (RACCT_IS_IN_MILLIONS(i)) 1286cff08ec0SEdward Tomasz Napierala amount /= 1000000; 1287ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, "%s=%jd,", rctl_resource_name(i), amount); 1288ec125fbbSEdward Tomasz Napierala } 1289ec125fbbSEdward Tomasz Napierala sbuf_setpos(sb, sbuf_len(sb) - 1); 1290ec125fbbSEdward Tomasz Napierala return (sb); 1291ec125fbbSEdward Tomasz Napierala } 1292ec125fbbSEdward Tomasz Napierala 1293ec125fbbSEdward Tomasz Napierala int 12948451d0ddSKip Macy sys_rctl_get_racct(struct thread *td, struct rctl_get_racct_args *uap) 1295ec125fbbSEdward Tomasz Napierala { 1296ec125fbbSEdward Tomasz Napierala int error; 1297ec125fbbSEdward Tomasz Napierala char *inputstr; 1298ec125fbbSEdward Tomasz Napierala struct rctl_rule *filter; 1299ec125fbbSEdward Tomasz Napierala struct sbuf *outputsbuf = NULL; 1300ec125fbbSEdward Tomasz Napierala struct proc *p; 1301ec125fbbSEdward Tomasz Napierala struct uidinfo *uip; 1302ec125fbbSEdward Tomasz Napierala struct loginclass *lc; 1303a7ad07bfSEdward Tomasz Napierala struct prison_racct *prr; 1304ec125fbbSEdward Tomasz Napierala 1305415896e3SEdward Tomasz Napierala error = priv_check(td, PRIV_RCTL_GET_RACCT); 1306ec125fbbSEdward Tomasz Napierala if (error != 0) 1307ec125fbbSEdward Tomasz Napierala return (error); 1308ec125fbbSEdward Tomasz Napierala 1309ec125fbbSEdward Tomasz Napierala error = rctl_read_inbuf(&inputstr, uap->inbufp, uap->inbuflen); 1310ec125fbbSEdward Tomasz Napierala if (error != 0) 1311ec125fbbSEdward Tomasz Napierala return (error); 1312ec125fbbSEdward Tomasz Napierala 1313ec125fbbSEdward Tomasz Napierala sx_slock(&allproc_lock); 1314ec125fbbSEdward Tomasz Napierala error = rctl_string_to_rule(inputstr, &filter); 1315ec125fbbSEdward Tomasz Napierala free(inputstr, M_RCTL); 1316ec125fbbSEdward Tomasz Napierala if (error != 0) { 1317ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1318ec125fbbSEdward Tomasz Napierala return (error); 1319ec125fbbSEdward Tomasz Napierala } 1320ec125fbbSEdward Tomasz Napierala 1321ec125fbbSEdward Tomasz Napierala switch (filter->rr_subject_type) { 1322ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_PROCESS: 1323ec125fbbSEdward Tomasz Napierala p = filter->rr_subject.rs_proc; 1324ec125fbbSEdward Tomasz Napierala if (p == NULL) { 1325ec125fbbSEdward Tomasz Napierala error = EINVAL; 1326ec125fbbSEdward Tomasz Napierala goto out; 1327ec125fbbSEdward Tomasz Napierala } 1328ec125fbbSEdward Tomasz Napierala outputsbuf = rctl_racct_to_sbuf(p->p_racct, 0); 1329ec125fbbSEdward Tomasz Napierala break; 1330ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_USER: 1331ec125fbbSEdward Tomasz Napierala uip = filter->rr_subject.rs_uip; 1332ec125fbbSEdward Tomasz Napierala if (uip == NULL) { 1333ec125fbbSEdward Tomasz Napierala error = EINVAL; 1334ec125fbbSEdward Tomasz Napierala goto out; 1335ec125fbbSEdward Tomasz Napierala } 1336ec125fbbSEdward Tomasz Napierala outputsbuf = rctl_racct_to_sbuf(uip->ui_racct, 1); 1337ec125fbbSEdward Tomasz Napierala break; 1338ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_LOGINCLASS: 1339415896e3SEdward Tomasz Napierala lc = filter->rr_subject.rs_loginclass; 1340ec125fbbSEdward Tomasz Napierala if (lc == NULL) { 1341ec125fbbSEdward Tomasz Napierala error = EINVAL; 1342ec125fbbSEdward Tomasz Napierala goto out; 1343ec125fbbSEdward Tomasz Napierala } 1344ec125fbbSEdward Tomasz Napierala outputsbuf = rctl_racct_to_sbuf(lc->lc_racct, 1); 1345ec125fbbSEdward Tomasz Napierala break; 1346ec125fbbSEdward Tomasz Napierala case RCTL_SUBJECT_TYPE_JAIL: 1347a7ad07bfSEdward Tomasz Napierala prr = filter->rr_subject.rs_prison_racct; 1348a7ad07bfSEdward Tomasz Napierala if (prr == NULL) { 1349ec125fbbSEdward Tomasz Napierala error = EINVAL; 1350ec125fbbSEdward Tomasz Napierala goto out; 1351ec125fbbSEdward Tomasz Napierala } 1352a7ad07bfSEdward Tomasz Napierala outputsbuf = rctl_racct_to_sbuf(prr->prr_racct, 1); 1353ec125fbbSEdward Tomasz Napierala break; 1354ec125fbbSEdward Tomasz Napierala default: 1355ec125fbbSEdward Tomasz Napierala error = EINVAL; 1356ec125fbbSEdward Tomasz Napierala } 1357ec125fbbSEdward Tomasz Napierala out: 1358ec125fbbSEdward Tomasz Napierala rctl_rule_release(filter); 1359ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1360ec125fbbSEdward Tomasz Napierala if (error != 0) 1361ec125fbbSEdward Tomasz Napierala return (error); 1362ec125fbbSEdward Tomasz Napierala 1363ec125fbbSEdward Tomasz Napierala error = rctl_write_outbuf(outputsbuf, uap->outbufp, uap->outbuflen); 1364ec125fbbSEdward Tomasz Napierala 1365ec125fbbSEdward Tomasz Napierala return (error); 1366ec125fbbSEdward Tomasz Napierala } 1367ec125fbbSEdward Tomasz Napierala 1368ec125fbbSEdward Tomasz Napierala static void 1369ec125fbbSEdward Tomasz Napierala rctl_get_rules_callback(struct racct *racct, void *arg2, void *arg3) 1370ec125fbbSEdward Tomasz Napierala { 1371ec125fbbSEdward Tomasz Napierala struct rctl_rule *filter = (struct rctl_rule *)arg2; 1372ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 1373ec125fbbSEdward Tomasz Napierala struct sbuf *sb = (struct sbuf *)arg3; 1374ec125fbbSEdward Tomasz Napierala 1375ec125fbbSEdward Tomasz Napierala rw_rlock(&rctl_lock); 1376ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &racct->r_rule_links, rrl_next) { 1377ec125fbbSEdward Tomasz Napierala if (!rctl_rule_matches(link->rrl_rule, filter)) 1378ec125fbbSEdward Tomasz Napierala continue; 1379ec125fbbSEdward Tomasz Napierala rctl_rule_to_sbuf(sb, link->rrl_rule); 1380ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, ","); 1381ec125fbbSEdward Tomasz Napierala } 1382ec125fbbSEdward Tomasz Napierala rw_runlock(&rctl_lock); 1383ec125fbbSEdward Tomasz Napierala } 1384ec125fbbSEdward Tomasz Napierala 1385ec125fbbSEdward Tomasz Napierala int 13868451d0ddSKip Macy sys_rctl_get_rules(struct thread *td, struct rctl_get_rules_args *uap) 1387ec125fbbSEdward Tomasz Napierala { 1388ec125fbbSEdward Tomasz Napierala int error; 1389ec125fbbSEdward Tomasz Napierala size_t bufsize = RCTL_DEFAULT_BUFSIZE; 1390ec125fbbSEdward Tomasz Napierala char *inputstr, *buf; 1391ec125fbbSEdward Tomasz Napierala struct sbuf *sb; 1392ec125fbbSEdward Tomasz Napierala struct rctl_rule *filter; 1393ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 1394ec125fbbSEdward Tomasz Napierala struct proc *p; 1395ec125fbbSEdward Tomasz Napierala 1396ec125fbbSEdward Tomasz Napierala error = priv_check(td, PRIV_RCTL_GET_RULES); 1397ec125fbbSEdward Tomasz Napierala if (error != 0) 1398ec125fbbSEdward Tomasz Napierala return (error); 1399ec125fbbSEdward Tomasz Napierala 1400ec125fbbSEdward Tomasz Napierala error = rctl_read_inbuf(&inputstr, uap->inbufp, uap->inbuflen); 1401ec125fbbSEdward Tomasz Napierala if (error != 0) 1402ec125fbbSEdward Tomasz Napierala return (error); 1403ec125fbbSEdward Tomasz Napierala 1404ec125fbbSEdward Tomasz Napierala sx_slock(&allproc_lock); 1405ec125fbbSEdward Tomasz Napierala error = rctl_string_to_rule(inputstr, &filter); 1406ec125fbbSEdward Tomasz Napierala free(inputstr, M_RCTL); 1407ec125fbbSEdward Tomasz Napierala if (error != 0) { 1408ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1409ec125fbbSEdward Tomasz Napierala return (error); 1410ec125fbbSEdward Tomasz Napierala } 1411ec125fbbSEdward Tomasz Napierala 1412ec125fbbSEdward Tomasz Napierala again: 1413ec125fbbSEdward Tomasz Napierala buf = malloc(bufsize, M_RCTL, M_WAITOK); 1414ec125fbbSEdward Tomasz Napierala sb = sbuf_new(NULL, buf, bufsize, SBUF_FIXEDLEN); 1415ec125fbbSEdward Tomasz Napierala KASSERT(sb != NULL, ("sbuf_new failed")); 1416ec125fbbSEdward Tomasz Napierala 1417ec125fbbSEdward Tomasz Napierala sx_assert(&allproc_lock, SA_LOCKED); 1418ec125fbbSEdward Tomasz Napierala FOREACH_PROC_IN_SYSTEM(p) { 1419ec125fbbSEdward Tomasz Napierala rw_rlock(&rctl_lock); 1420ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &p->p_racct->r_rule_links, rrl_next) { 1421ec125fbbSEdward Tomasz Napierala /* 1422ec125fbbSEdward Tomasz Napierala * Non-process rules will be added to the buffer later. 1423ec125fbbSEdward Tomasz Napierala * Adding them here would result in duplicated output. 1424ec125fbbSEdward Tomasz Napierala */ 1425ec125fbbSEdward Tomasz Napierala if (link->rrl_rule->rr_subject_type != 1426ec125fbbSEdward Tomasz Napierala RCTL_SUBJECT_TYPE_PROCESS) 1427ec125fbbSEdward Tomasz Napierala continue; 1428ec125fbbSEdward Tomasz Napierala if (!rctl_rule_matches(link->rrl_rule, filter)) 1429ec125fbbSEdward Tomasz Napierala continue; 1430ec125fbbSEdward Tomasz Napierala rctl_rule_to_sbuf(sb, link->rrl_rule); 1431ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, ","); 1432ec125fbbSEdward Tomasz Napierala } 1433ec125fbbSEdward Tomasz Napierala rw_runlock(&rctl_lock); 1434ec125fbbSEdward Tomasz Napierala } 1435ec125fbbSEdward Tomasz Napierala 1436ec125fbbSEdward Tomasz Napierala loginclass_racct_foreach(rctl_get_rules_callback, filter, sb); 1437ec125fbbSEdward Tomasz Napierala ui_racct_foreach(rctl_get_rules_callback, filter, sb); 1438ec125fbbSEdward Tomasz Napierala prison_racct_foreach(rctl_get_rules_callback, filter, sb); 1439ec125fbbSEdward Tomasz Napierala if (sbuf_error(sb) == ENOMEM) { 1440ec125fbbSEdward Tomasz Napierala sbuf_delete(sb); 1441ec125fbbSEdward Tomasz Napierala free(buf, M_RCTL); 1442ec125fbbSEdward Tomasz Napierala bufsize *= 4; 1443ec125fbbSEdward Tomasz Napierala goto again; 1444ec125fbbSEdward Tomasz Napierala } 1445ec125fbbSEdward Tomasz Napierala 1446ec125fbbSEdward Tomasz Napierala /* 1447ec125fbbSEdward Tomasz Napierala * Remove trailing ",". 1448ec125fbbSEdward Tomasz Napierala */ 1449ec125fbbSEdward Tomasz Napierala if (sbuf_len(sb) > 0) 1450ec125fbbSEdward Tomasz Napierala sbuf_setpos(sb, sbuf_len(sb) - 1); 1451ec125fbbSEdward Tomasz Napierala 1452ec125fbbSEdward Tomasz Napierala error = rctl_write_outbuf(sb, uap->outbufp, uap->outbuflen); 1453ec125fbbSEdward Tomasz Napierala 1454ec125fbbSEdward Tomasz Napierala rctl_rule_release(filter); 1455ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1456ec125fbbSEdward Tomasz Napierala free(buf, M_RCTL); 1457ec125fbbSEdward Tomasz Napierala return (error); 1458ec125fbbSEdward Tomasz Napierala } 1459ec125fbbSEdward Tomasz Napierala 1460ec125fbbSEdward Tomasz Napierala int 14618451d0ddSKip Macy sys_rctl_get_limits(struct thread *td, struct rctl_get_limits_args *uap) 1462ec125fbbSEdward Tomasz Napierala { 1463ec125fbbSEdward Tomasz Napierala int error; 1464ec125fbbSEdward Tomasz Napierala size_t bufsize = RCTL_DEFAULT_BUFSIZE; 1465ec125fbbSEdward Tomasz Napierala char *inputstr, *buf; 1466ec125fbbSEdward Tomasz Napierala struct sbuf *sb; 1467ec125fbbSEdward Tomasz Napierala struct rctl_rule *filter; 1468ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 1469ec125fbbSEdward Tomasz Napierala 1470ec125fbbSEdward Tomasz Napierala error = priv_check(td, PRIV_RCTL_GET_LIMITS); 1471ec125fbbSEdward Tomasz Napierala if (error != 0) 1472ec125fbbSEdward Tomasz Napierala return (error); 1473ec125fbbSEdward Tomasz Napierala 1474ec125fbbSEdward Tomasz Napierala error = rctl_read_inbuf(&inputstr, uap->inbufp, uap->inbuflen); 1475ec125fbbSEdward Tomasz Napierala if (error != 0) 1476ec125fbbSEdward Tomasz Napierala return (error); 1477ec125fbbSEdward Tomasz Napierala 1478ec125fbbSEdward Tomasz Napierala sx_slock(&allproc_lock); 1479ec125fbbSEdward Tomasz Napierala error = rctl_string_to_rule(inputstr, &filter); 1480ec125fbbSEdward Tomasz Napierala free(inputstr, M_RCTL); 1481ec125fbbSEdward Tomasz Napierala if (error != 0) { 1482ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1483ec125fbbSEdward Tomasz Napierala return (error); 1484ec125fbbSEdward Tomasz Napierala } 1485ec125fbbSEdward Tomasz Napierala 1486ec125fbbSEdward Tomasz Napierala if (filter->rr_subject_type == RCTL_SUBJECT_TYPE_UNDEFINED) { 1487ec125fbbSEdward Tomasz Napierala rctl_rule_release(filter); 1488ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1489ec125fbbSEdward Tomasz Napierala return (EINVAL); 1490ec125fbbSEdward Tomasz Napierala } 1491ec125fbbSEdward Tomasz Napierala if (filter->rr_subject_type != RCTL_SUBJECT_TYPE_PROCESS) { 1492ec125fbbSEdward Tomasz Napierala rctl_rule_release(filter); 1493ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1494ec125fbbSEdward Tomasz Napierala return (EOPNOTSUPP); 1495ec125fbbSEdward Tomasz Napierala } 1496ec125fbbSEdward Tomasz Napierala if (filter->rr_subject.rs_proc == NULL) { 1497ec125fbbSEdward Tomasz Napierala rctl_rule_release(filter); 1498ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1499ec125fbbSEdward Tomasz Napierala return (EINVAL); 1500ec125fbbSEdward Tomasz Napierala } 1501ec125fbbSEdward Tomasz Napierala 1502ec125fbbSEdward Tomasz Napierala again: 1503ec125fbbSEdward Tomasz Napierala buf = malloc(bufsize, M_RCTL, M_WAITOK); 1504ec125fbbSEdward Tomasz Napierala sb = sbuf_new(NULL, buf, bufsize, SBUF_FIXEDLEN); 1505ec125fbbSEdward Tomasz Napierala KASSERT(sb != NULL, ("sbuf_new failed")); 1506ec125fbbSEdward Tomasz Napierala 1507ec125fbbSEdward Tomasz Napierala rw_rlock(&rctl_lock); 1508ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &filter->rr_subject.rs_proc->p_racct->r_rule_links, 1509ec125fbbSEdward Tomasz Napierala rrl_next) { 1510ec125fbbSEdward Tomasz Napierala rctl_rule_to_sbuf(sb, link->rrl_rule); 1511ec125fbbSEdward Tomasz Napierala sbuf_printf(sb, ","); 1512ec125fbbSEdward Tomasz Napierala } 1513ec125fbbSEdward Tomasz Napierala rw_runlock(&rctl_lock); 1514ec125fbbSEdward Tomasz Napierala if (sbuf_error(sb) == ENOMEM) { 1515ec125fbbSEdward Tomasz Napierala sbuf_delete(sb); 1516ec125fbbSEdward Tomasz Napierala free(buf, M_RCTL); 1517ec125fbbSEdward Tomasz Napierala bufsize *= 4; 1518ec125fbbSEdward Tomasz Napierala goto again; 1519ec125fbbSEdward Tomasz Napierala } 1520ec125fbbSEdward Tomasz Napierala 1521ec125fbbSEdward Tomasz Napierala /* 1522ec125fbbSEdward Tomasz Napierala * Remove trailing ",". 1523ec125fbbSEdward Tomasz Napierala */ 1524ec125fbbSEdward Tomasz Napierala if (sbuf_len(sb) > 0) 1525ec125fbbSEdward Tomasz Napierala sbuf_setpos(sb, sbuf_len(sb) - 1); 1526ec125fbbSEdward Tomasz Napierala 1527ec125fbbSEdward Tomasz Napierala error = rctl_write_outbuf(sb, uap->outbufp, uap->outbuflen); 1528ec125fbbSEdward Tomasz Napierala rctl_rule_release(filter); 1529ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1530ec125fbbSEdward Tomasz Napierala free(buf, M_RCTL); 1531ec125fbbSEdward Tomasz Napierala return (error); 1532ec125fbbSEdward Tomasz Napierala } 1533ec125fbbSEdward Tomasz Napierala 1534ec125fbbSEdward Tomasz Napierala int 15358451d0ddSKip Macy sys_rctl_add_rule(struct thread *td, struct rctl_add_rule_args *uap) 1536ec125fbbSEdward Tomasz Napierala { 1537ec125fbbSEdward Tomasz Napierala int error; 1538ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 1539ec125fbbSEdward Tomasz Napierala char *inputstr; 1540ec125fbbSEdward Tomasz Napierala 1541ec125fbbSEdward Tomasz Napierala error = priv_check(td, PRIV_RCTL_ADD_RULE); 1542ec125fbbSEdward Tomasz Napierala if (error != 0) 1543ec125fbbSEdward Tomasz Napierala return (error); 1544ec125fbbSEdward Tomasz Napierala 1545ec125fbbSEdward Tomasz Napierala error = rctl_read_inbuf(&inputstr, uap->inbufp, uap->inbuflen); 1546ec125fbbSEdward Tomasz Napierala if (error != 0) 1547ec125fbbSEdward Tomasz Napierala return (error); 1548ec125fbbSEdward Tomasz Napierala 1549ec125fbbSEdward Tomasz Napierala sx_slock(&allproc_lock); 1550ec125fbbSEdward Tomasz Napierala error = rctl_string_to_rule(inputstr, &rule); 1551ec125fbbSEdward Tomasz Napierala free(inputstr, M_RCTL); 1552ec125fbbSEdward Tomasz Napierala if (error != 0) { 1553ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1554ec125fbbSEdward Tomasz Napierala return (error); 1555ec125fbbSEdward Tomasz Napierala } 1556ec125fbbSEdward Tomasz Napierala /* 1557ec125fbbSEdward Tomasz Napierala * The 'per' part of a rule is optional. 1558ec125fbbSEdward Tomasz Napierala */ 1559ec125fbbSEdward Tomasz Napierala if (rule->rr_per == RCTL_SUBJECT_TYPE_UNDEFINED && 1560ec125fbbSEdward Tomasz Napierala rule->rr_subject_type != RCTL_SUBJECT_TYPE_UNDEFINED) 1561ec125fbbSEdward Tomasz Napierala rule->rr_per = rule->rr_subject_type; 1562ec125fbbSEdward Tomasz Napierala 1563ec125fbbSEdward Tomasz Napierala if (!rctl_rule_fully_specified(rule)) { 1564ec125fbbSEdward Tomasz Napierala error = EINVAL; 1565ec125fbbSEdward Tomasz Napierala goto out; 1566ec125fbbSEdward Tomasz Napierala } 1567ec125fbbSEdward Tomasz Napierala 1568ec125fbbSEdward Tomasz Napierala error = rctl_rule_add(rule); 1569ec125fbbSEdward Tomasz Napierala 1570ec125fbbSEdward Tomasz Napierala out: 1571ec125fbbSEdward Tomasz Napierala rctl_rule_release(rule); 1572ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1573ec125fbbSEdward Tomasz Napierala return (error); 1574ec125fbbSEdward Tomasz Napierala } 1575ec125fbbSEdward Tomasz Napierala 1576ec125fbbSEdward Tomasz Napierala int 15778451d0ddSKip Macy sys_rctl_remove_rule(struct thread *td, struct rctl_remove_rule_args *uap) 1578ec125fbbSEdward Tomasz Napierala { 1579ec125fbbSEdward Tomasz Napierala int error; 1580ec125fbbSEdward Tomasz Napierala struct rctl_rule *filter; 1581ec125fbbSEdward Tomasz Napierala char *inputstr; 1582ec125fbbSEdward Tomasz Napierala 1583ec125fbbSEdward Tomasz Napierala error = priv_check(td, PRIV_RCTL_REMOVE_RULE); 1584ec125fbbSEdward Tomasz Napierala if (error != 0) 1585ec125fbbSEdward Tomasz Napierala return (error); 1586ec125fbbSEdward Tomasz Napierala 1587ec125fbbSEdward Tomasz Napierala error = rctl_read_inbuf(&inputstr, uap->inbufp, uap->inbuflen); 1588ec125fbbSEdward Tomasz Napierala if (error != 0) 1589ec125fbbSEdward Tomasz Napierala return (error); 1590ec125fbbSEdward Tomasz Napierala 1591ec125fbbSEdward Tomasz Napierala sx_slock(&allproc_lock); 1592ec125fbbSEdward Tomasz Napierala error = rctl_string_to_rule(inputstr, &filter); 1593ec125fbbSEdward Tomasz Napierala free(inputstr, M_RCTL); 1594ec125fbbSEdward Tomasz Napierala if (error != 0) { 1595ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1596ec125fbbSEdward Tomasz Napierala return (error); 1597ec125fbbSEdward Tomasz Napierala } 1598ec125fbbSEdward Tomasz Napierala 1599ec125fbbSEdward Tomasz Napierala error = rctl_rule_remove(filter); 1600ec125fbbSEdward Tomasz Napierala rctl_rule_release(filter); 1601ec125fbbSEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1602ec125fbbSEdward Tomasz Napierala 1603ec125fbbSEdward Tomasz Napierala return (error); 1604ec125fbbSEdward Tomasz Napierala } 1605ec125fbbSEdward Tomasz Napierala 1606ec125fbbSEdward Tomasz Napierala /* 1607ec125fbbSEdward Tomasz Napierala * Update RCTL rule list after credential change. 1608ec125fbbSEdward Tomasz Napierala */ 1609ec125fbbSEdward Tomasz Napierala void 1610ec125fbbSEdward Tomasz Napierala rctl_proc_ucred_changed(struct proc *p, struct ucred *newcred) 1611ec125fbbSEdward Tomasz Napierala { 1612ec125fbbSEdward Tomasz Napierala int rulecnt, i; 1613ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link, *newlink; 1614ec125fbbSEdward Tomasz Napierala struct uidinfo *newuip; 1615ec125fbbSEdward Tomasz Napierala struct loginclass *newlc; 1616a7ad07bfSEdward Tomasz Napierala struct prison_racct *newprr; 1617ec125fbbSEdward Tomasz Napierala LIST_HEAD(, rctl_rule_link) newrules; 1618ec125fbbSEdward Tomasz Napierala 1619ec125fbbSEdward Tomasz Napierala newuip = newcred->cr_ruidinfo; 1620ec125fbbSEdward Tomasz Napierala newlc = newcred->cr_loginclass; 1621a7ad07bfSEdward Tomasz Napierala newprr = newcred->cr_prison->pr_prison_racct; 1622ec125fbbSEdward Tomasz Napierala 1623ec125fbbSEdward Tomasz Napierala LIST_INIT(&newrules); 1624ec125fbbSEdward Tomasz Napierala 1625ec125fbbSEdward Tomasz Napierala again: 1626ec125fbbSEdward Tomasz Napierala /* 1627ec125fbbSEdward Tomasz Napierala * First, count the rules that apply to the process with new 1628ec125fbbSEdward Tomasz Napierala * credentials. 1629ec125fbbSEdward Tomasz Napierala */ 1630ec125fbbSEdward Tomasz Napierala rulecnt = 0; 1631ec125fbbSEdward Tomasz Napierala rw_rlock(&rctl_lock); 1632ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &p->p_racct->r_rule_links, rrl_next) { 1633ec125fbbSEdward Tomasz Napierala if (link->rrl_rule->rr_subject_type == 1634ec125fbbSEdward Tomasz Napierala RCTL_SUBJECT_TYPE_PROCESS) 1635ec125fbbSEdward Tomasz Napierala rulecnt++; 1636ec125fbbSEdward Tomasz Napierala } 1637ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &newuip->ui_racct->r_rule_links, rrl_next) 1638ec125fbbSEdward Tomasz Napierala rulecnt++; 1639ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &newlc->lc_racct->r_rule_links, rrl_next) 1640ec125fbbSEdward Tomasz Napierala rulecnt++; 1641a7ad07bfSEdward Tomasz Napierala LIST_FOREACH(link, &newprr->prr_racct->r_rule_links, rrl_next) 1642ec125fbbSEdward Tomasz Napierala rulecnt++; 1643ec125fbbSEdward Tomasz Napierala rw_runlock(&rctl_lock); 1644ec125fbbSEdward Tomasz Napierala 1645ec125fbbSEdward Tomasz Napierala /* 1646ec125fbbSEdward Tomasz Napierala * Create temporary list. We've dropped the rctl_lock in order 1647ec125fbbSEdward Tomasz Napierala * to use M_WAITOK. 1648ec125fbbSEdward Tomasz Napierala */ 1649ec125fbbSEdward Tomasz Napierala for (i = 0; i < rulecnt; i++) { 1650ec125fbbSEdward Tomasz Napierala newlink = uma_zalloc(rctl_rule_link_zone, M_WAITOK); 1651ec125fbbSEdward Tomasz Napierala newlink->rrl_rule = NULL; 1652ec125fbbSEdward Tomasz Napierala LIST_INSERT_HEAD(&newrules, newlink, rrl_next); 1653ec125fbbSEdward Tomasz Napierala } 1654ec125fbbSEdward Tomasz Napierala 1655ec125fbbSEdward Tomasz Napierala newlink = LIST_FIRST(&newrules); 1656ec125fbbSEdward Tomasz Napierala 1657ec125fbbSEdward Tomasz Napierala /* 1658ec125fbbSEdward Tomasz Napierala * Assign rules to the newly allocated list entries. 1659ec125fbbSEdward Tomasz Napierala */ 1660ec125fbbSEdward Tomasz Napierala rw_wlock(&rctl_lock); 1661ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &p->p_racct->r_rule_links, rrl_next) { 1662ec125fbbSEdward Tomasz Napierala if (link->rrl_rule->rr_subject_type == 1663ec125fbbSEdward Tomasz Napierala RCTL_SUBJECT_TYPE_PROCESS) { 1664ec125fbbSEdward Tomasz Napierala if (newlink == NULL) 1665ec125fbbSEdward Tomasz Napierala goto goaround; 1666ec125fbbSEdward Tomasz Napierala rctl_rule_acquire(link->rrl_rule); 1667ec125fbbSEdward Tomasz Napierala newlink->rrl_rule = link->rrl_rule; 1668ec125fbbSEdward Tomasz Napierala newlink = LIST_NEXT(newlink, rrl_next); 1669ec125fbbSEdward Tomasz Napierala rulecnt--; 1670ec125fbbSEdward Tomasz Napierala } 1671ec125fbbSEdward Tomasz Napierala } 1672ec125fbbSEdward Tomasz Napierala 1673ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &newuip->ui_racct->r_rule_links, rrl_next) { 1674ec125fbbSEdward Tomasz Napierala if (newlink == NULL) 1675ec125fbbSEdward Tomasz Napierala goto goaround; 1676ec125fbbSEdward Tomasz Napierala rctl_rule_acquire(link->rrl_rule); 1677ec125fbbSEdward Tomasz Napierala newlink->rrl_rule = link->rrl_rule; 1678ec125fbbSEdward Tomasz Napierala newlink = LIST_NEXT(newlink, rrl_next); 1679ec125fbbSEdward Tomasz Napierala rulecnt--; 1680ec125fbbSEdward Tomasz Napierala } 1681ec125fbbSEdward Tomasz Napierala 1682ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &newlc->lc_racct->r_rule_links, rrl_next) { 1683ec125fbbSEdward Tomasz Napierala if (newlink == NULL) 1684ec125fbbSEdward Tomasz Napierala goto goaround; 1685ec125fbbSEdward Tomasz Napierala rctl_rule_acquire(link->rrl_rule); 1686ec125fbbSEdward Tomasz Napierala newlink->rrl_rule = link->rrl_rule; 1687ec125fbbSEdward Tomasz Napierala newlink = LIST_NEXT(newlink, rrl_next); 1688ec125fbbSEdward Tomasz Napierala rulecnt--; 1689ec125fbbSEdward Tomasz Napierala } 1690ec125fbbSEdward Tomasz Napierala 1691a7ad07bfSEdward Tomasz Napierala LIST_FOREACH(link, &newprr->prr_racct->r_rule_links, rrl_next) { 1692ec125fbbSEdward Tomasz Napierala if (newlink == NULL) 1693ec125fbbSEdward Tomasz Napierala goto goaround; 1694ec125fbbSEdward Tomasz Napierala rctl_rule_acquire(link->rrl_rule); 1695ec125fbbSEdward Tomasz Napierala newlink->rrl_rule = link->rrl_rule; 1696ec125fbbSEdward Tomasz Napierala newlink = LIST_NEXT(newlink, rrl_next); 1697ec125fbbSEdward Tomasz Napierala rulecnt--; 1698ec125fbbSEdward Tomasz Napierala } 1699ec125fbbSEdward Tomasz Napierala 1700ec125fbbSEdward Tomasz Napierala if (rulecnt == 0) { 1701ec125fbbSEdward Tomasz Napierala /* 1702ec125fbbSEdward Tomasz Napierala * Free the old rule list. 1703ec125fbbSEdward Tomasz Napierala */ 1704ec125fbbSEdward Tomasz Napierala while (!LIST_EMPTY(&p->p_racct->r_rule_links)) { 1705ec125fbbSEdward Tomasz Napierala link = LIST_FIRST(&p->p_racct->r_rule_links); 1706ec125fbbSEdward Tomasz Napierala LIST_REMOVE(link, rrl_next); 1707ec125fbbSEdward Tomasz Napierala rctl_rule_release(link->rrl_rule); 1708ec125fbbSEdward Tomasz Napierala uma_zfree(rctl_rule_link_zone, link); 1709ec125fbbSEdward Tomasz Napierala } 1710ec125fbbSEdward Tomasz Napierala 1711ec125fbbSEdward Tomasz Napierala /* 1712ec125fbbSEdward Tomasz Napierala * Replace lists and we're done. 1713ec125fbbSEdward Tomasz Napierala * 1714ec125fbbSEdward Tomasz Napierala * XXX: Is there any way to switch list heads instead 1715ec125fbbSEdward Tomasz Napierala * of iterating here? 1716ec125fbbSEdward Tomasz Napierala */ 1717ec125fbbSEdward Tomasz Napierala while (!LIST_EMPTY(&newrules)) { 1718ec125fbbSEdward Tomasz Napierala newlink = LIST_FIRST(&newrules); 1719ec125fbbSEdward Tomasz Napierala LIST_REMOVE(newlink, rrl_next); 1720ec125fbbSEdward Tomasz Napierala LIST_INSERT_HEAD(&p->p_racct->r_rule_links, 1721ec125fbbSEdward Tomasz Napierala newlink, rrl_next); 1722ec125fbbSEdward Tomasz Napierala } 1723ec125fbbSEdward Tomasz Napierala 1724ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1725ec125fbbSEdward Tomasz Napierala 1726ec125fbbSEdward Tomasz Napierala return; 1727ec125fbbSEdward Tomasz Napierala } 1728ec125fbbSEdward Tomasz Napierala 1729ec125fbbSEdward Tomasz Napierala goaround: 1730ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1731ec125fbbSEdward Tomasz Napierala 1732ec125fbbSEdward Tomasz Napierala /* 1733ec125fbbSEdward Tomasz Napierala * Rule list changed while we were not holding the rctl_lock. 1734ec125fbbSEdward Tomasz Napierala * Free the new list and try again. 1735ec125fbbSEdward Tomasz Napierala */ 1736ec125fbbSEdward Tomasz Napierala while (!LIST_EMPTY(&newrules)) { 1737ec125fbbSEdward Tomasz Napierala newlink = LIST_FIRST(&newrules); 1738ec125fbbSEdward Tomasz Napierala LIST_REMOVE(newlink, rrl_next); 1739ec125fbbSEdward Tomasz Napierala if (newlink->rrl_rule != NULL) 1740ec125fbbSEdward Tomasz Napierala rctl_rule_release(newlink->rrl_rule); 1741ec125fbbSEdward Tomasz Napierala uma_zfree(rctl_rule_link_zone, newlink); 1742ec125fbbSEdward Tomasz Napierala } 1743ec125fbbSEdward Tomasz Napierala 1744ec125fbbSEdward Tomasz Napierala goto again; 1745ec125fbbSEdward Tomasz Napierala } 1746ec125fbbSEdward Tomasz Napierala 1747ec125fbbSEdward Tomasz Napierala /* 1748ec125fbbSEdward Tomasz Napierala * Assign RCTL rules to the newly created process. 1749ec125fbbSEdward Tomasz Napierala */ 1750ec125fbbSEdward Tomasz Napierala int 1751ec125fbbSEdward Tomasz Napierala rctl_proc_fork(struct proc *parent, struct proc *child) 1752ec125fbbSEdward Tomasz Napierala { 1753ec125fbbSEdward Tomasz Napierala int error; 1754ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 1755ec125fbbSEdward Tomasz Napierala struct rctl_rule *rule; 1756ec125fbbSEdward Tomasz Napierala 1757ec125fbbSEdward Tomasz Napierala LIST_INIT(&child->p_racct->r_rule_links); 1758ec125fbbSEdward Tomasz Napierala 17590b18eb6dSEdward Tomasz Napierala KASSERT(parent->p_racct != NULL, ("process without racct; p = %p", parent)); 1760ec125fbbSEdward Tomasz Napierala 1761ec125fbbSEdward Tomasz Napierala rw_wlock(&rctl_lock); 1762ec125fbbSEdward Tomasz Napierala 1763ec125fbbSEdward Tomasz Napierala /* 1764ec125fbbSEdward Tomasz Napierala * Go through limits applicable to the parent and assign them 1765ec125fbbSEdward Tomasz Napierala * to the child. Rules with 'process' subject have to be duplicated 1766ec125fbbSEdward Tomasz Napierala * in order to make their rr_subject point to the new process. 1767ec125fbbSEdward Tomasz Napierala */ 1768ec125fbbSEdward Tomasz Napierala LIST_FOREACH(link, &parent->p_racct->r_rule_links, rrl_next) { 1769ec125fbbSEdward Tomasz Napierala if (link->rrl_rule->rr_subject_type == 1770ec125fbbSEdward Tomasz Napierala RCTL_SUBJECT_TYPE_PROCESS) { 1771ec125fbbSEdward Tomasz Napierala rule = rctl_rule_duplicate(link->rrl_rule, M_NOWAIT); 1772ec125fbbSEdward Tomasz Napierala if (rule == NULL) 1773ec125fbbSEdward Tomasz Napierala goto fail; 1774ec125fbbSEdward Tomasz Napierala KASSERT(rule->rr_subject.rs_proc == parent, 1775ec125fbbSEdward Tomasz Napierala ("rule->rr_subject.rs_proc != parent")); 1776ec125fbbSEdward Tomasz Napierala rule->rr_subject.rs_proc = child; 1777ec125fbbSEdward Tomasz Napierala error = rctl_racct_add_rule_locked(child->p_racct, 1778ec125fbbSEdward Tomasz Napierala rule); 1779ec125fbbSEdward Tomasz Napierala rctl_rule_release(rule); 1780ec125fbbSEdward Tomasz Napierala if (error != 0) 1781ec125fbbSEdward Tomasz Napierala goto fail; 1782ec125fbbSEdward Tomasz Napierala } else { 1783ec125fbbSEdward Tomasz Napierala error = rctl_racct_add_rule_locked(child->p_racct, 1784ec125fbbSEdward Tomasz Napierala link->rrl_rule); 1785ec125fbbSEdward Tomasz Napierala if (error != 0) 1786ec125fbbSEdward Tomasz Napierala goto fail; 1787ec125fbbSEdward Tomasz Napierala } 1788ec125fbbSEdward Tomasz Napierala } 1789ec125fbbSEdward Tomasz Napierala 1790ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1791ec125fbbSEdward Tomasz Napierala return (0); 1792ec125fbbSEdward Tomasz Napierala 1793ec125fbbSEdward Tomasz Napierala fail: 1794ec125fbbSEdward Tomasz Napierala while (!LIST_EMPTY(&child->p_racct->r_rule_links)) { 1795ec125fbbSEdward Tomasz Napierala link = LIST_FIRST(&child->p_racct->r_rule_links); 1796ec125fbbSEdward Tomasz Napierala LIST_REMOVE(link, rrl_next); 1797ec125fbbSEdward Tomasz Napierala rctl_rule_release(link->rrl_rule); 1798ec125fbbSEdward Tomasz Napierala uma_zfree(rctl_rule_link_zone, link); 1799ec125fbbSEdward Tomasz Napierala } 1800ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1801ec125fbbSEdward Tomasz Napierala return (EAGAIN); 1802ec125fbbSEdward Tomasz Napierala } 1803ec125fbbSEdward Tomasz Napierala 1804ec125fbbSEdward Tomasz Napierala /* 1805ec125fbbSEdward Tomasz Napierala * Release rules attached to the racct. 1806ec125fbbSEdward Tomasz Napierala */ 1807ec125fbbSEdward Tomasz Napierala void 1808ec125fbbSEdward Tomasz Napierala rctl_racct_release(struct racct *racct) 1809ec125fbbSEdward Tomasz Napierala { 1810ec125fbbSEdward Tomasz Napierala struct rctl_rule_link *link; 1811ec125fbbSEdward Tomasz Napierala 1812ec125fbbSEdward Tomasz Napierala rw_wlock(&rctl_lock); 1813ec125fbbSEdward Tomasz Napierala while (!LIST_EMPTY(&racct->r_rule_links)) { 1814ec125fbbSEdward Tomasz Napierala link = LIST_FIRST(&racct->r_rule_links); 1815ec125fbbSEdward Tomasz Napierala LIST_REMOVE(link, rrl_next); 1816ec125fbbSEdward Tomasz Napierala rctl_rule_release(link->rrl_rule); 1817ec125fbbSEdward Tomasz Napierala uma_zfree(rctl_rule_link_zone, link); 1818ec125fbbSEdward Tomasz Napierala } 1819ec125fbbSEdward Tomasz Napierala rw_wunlock(&rctl_lock); 1820ec125fbbSEdward Tomasz Napierala } 1821ec125fbbSEdward Tomasz Napierala 1822ec125fbbSEdward Tomasz Napierala static void 1823ec125fbbSEdward Tomasz Napierala rctl_init(void) 1824ec125fbbSEdward Tomasz Napierala { 1825ec125fbbSEdward Tomasz Napierala 1826ec125fbbSEdward Tomasz Napierala rctl_rule_link_zone = uma_zcreate("rctl_rule_link", 1827ec125fbbSEdward Tomasz Napierala sizeof(struct rctl_rule_link), NULL, NULL, NULL, NULL, 1828ec125fbbSEdward Tomasz Napierala UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 1829ec125fbbSEdward Tomasz Napierala rctl_rule_zone = uma_zcreate("rctl_rule", sizeof(struct rctl_rule), 1830ec125fbbSEdward Tomasz Napierala NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 1831ec125fbbSEdward Tomasz Napierala } 1832ec125fbbSEdward Tomasz Napierala 1833ec125fbbSEdward Tomasz Napierala #else /* !RCTL */ 1834ec125fbbSEdward Tomasz Napierala 1835ec125fbbSEdward Tomasz Napierala int 18368451d0ddSKip Macy sys_rctl_get_racct(struct thread *td, struct rctl_get_racct_args *uap) 1837ec125fbbSEdward Tomasz Napierala { 1838ec125fbbSEdward Tomasz Napierala 1839ec125fbbSEdward Tomasz Napierala return (ENOSYS); 1840ec125fbbSEdward Tomasz Napierala } 1841ec125fbbSEdward Tomasz Napierala 1842ec125fbbSEdward Tomasz Napierala int 18438451d0ddSKip Macy sys_rctl_get_rules(struct thread *td, struct rctl_get_rules_args *uap) 1844ec125fbbSEdward Tomasz Napierala { 1845ec125fbbSEdward Tomasz Napierala 1846ec125fbbSEdward Tomasz Napierala return (ENOSYS); 1847ec125fbbSEdward Tomasz Napierala } 1848ec125fbbSEdward Tomasz Napierala 1849ec125fbbSEdward Tomasz Napierala int 18508451d0ddSKip Macy sys_rctl_get_limits(struct thread *td, struct rctl_get_limits_args *uap) 1851ec125fbbSEdward Tomasz Napierala { 1852ec125fbbSEdward Tomasz Napierala 1853ec125fbbSEdward Tomasz Napierala return (ENOSYS); 1854ec125fbbSEdward Tomasz Napierala } 1855ec125fbbSEdward Tomasz Napierala 1856ec125fbbSEdward Tomasz Napierala int 18578451d0ddSKip Macy sys_rctl_add_rule(struct thread *td, struct rctl_add_rule_args *uap) 1858ec125fbbSEdward Tomasz Napierala { 1859ec125fbbSEdward Tomasz Napierala 1860ec125fbbSEdward Tomasz Napierala return (ENOSYS); 1861ec125fbbSEdward Tomasz Napierala } 1862ec125fbbSEdward Tomasz Napierala 1863ec125fbbSEdward Tomasz Napierala int 18648451d0ddSKip Macy sys_rctl_remove_rule(struct thread *td, struct rctl_remove_rule_args *uap) 1865ec125fbbSEdward Tomasz Napierala { 1866ec125fbbSEdward Tomasz Napierala 1867ec125fbbSEdward Tomasz Napierala return (ENOSYS); 1868ec125fbbSEdward Tomasz Napierala } 1869ec125fbbSEdward Tomasz Napierala 1870ec125fbbSEdward Tomasz Napierala #endif /* !RCTL */ 1871