17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 52caf0dcdSrshoaib * Common Development and Distribution License (the "License"). 62caf0dcdSrshoaib * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 212caf0dcdSrshoaib 227c478bd9Sstevel@tonic-gate /* 2356f33205SJonathan Adams * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #include <sys/types.h> 287c478bd9Sstevel@tonic-gate #include <sys/t_lock.h> 297c478bd9Sstevel@tonic-gate #include <sys/param.h> 307c478bd9Sstevel@tonic-gate #include <sys/systm.h> 317c478bd9Sstevel@tonic-gate #include <sys/buf.h> 327c478bd9Sstevel@tonic-gate #include <sys/conf.h> 337c478bd9Sstevel@tonic-gate #include <sys/cred.h> 347c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 357c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 367c478bd9Sstevel@tonic-gate #include <sys/vfs.h> 37aa59c4cbSrsb #include <sys/vfs_opreg.h> 387c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 397c478bd9Sstevel@tonic-gate #include <sys/debug.h> 407c478bd9Sstevel@tonic-gate #include <sys/errno.h> 417c478bd9Sstevel@tonic-gate #include <sys/time.h> 427c478bd9Sstevel@tonic-gate #include <sys/file.h> 437c478bd9Sstevel@tonic-gate #include <sys/open.h> 447c478bd9Sstevel@tonic-gate #include <sys/user.h> 457c478bd9Sstevel@tonic-gate #include <sys/termios.h> 467c478bd9Sstevel@tonic-gate #include <sys/stream.h> 477c478bd9Sstevel@tonic-gate #include <sys/strsubr.h> 487c478bd9Sstevel@tonic-gate #include <sys/strsun.h> 497c478bd9Sstevel@tonic-gate #include <sys/esunddi.h> 507c478bd9Sstevel@tonic-gate #include <sys/flock.h> 517c478bd9Sstevel@tonic-gate #include <sys/modctl.h> 527c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 537c478bd9Sstevel@tonic-gate #include <sys/mkdev.h> 547c478bd9Sstevel@tonic-gate #include <sys/pathname.h> 557c478bd9Sstevel@tonic-gate #include <sys/ddi.h> 567c478bd9Sstevel@tonic-gate #include <sys/stat.h> 577c478bd9Sstevel@tonic-gate #include <sys/fs/snode.h> 587c478bd9Sstevel@tonic-gate #include <sys/fs/dv_node.h> 597c478bd9Sstevel@tonic-gate #include <sys/zone.h> 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate #include <sys/socket.h> 627c478bd9Sstevel@tonic-gate #include <sys/socketvar.h> 637c478bd9Sstevel@tonic-gate #include <netinet/in.h> 647c478bd9Sstevel@tonic-gate #include <sys/un.h> 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate #include <sys/ucred.h> 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate #include <sys/tiuser.h> 697c478bd9Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 707c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate #include <c2/audit.h> 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate #include <fs/sockfs/nl7c.h> 750f1702c5SYu Xiangning #include <fs/sockfs/sockcommon.h> 760f1702c5SYu Xiangning #include <fs/sockfs/socktpi.h> 770f1702c5SYu Xiangning #include <fs/sockfs/socktpi_impl.h> 78bbc000e5SAnders Persson #include <fs/sockfs/sodirect.h> 797c478bd9Sstevel@tonic-gate 807c478bd9Sstevel@tonic-gate /* 817c478bd9Sstevel@tonic-gate * Macros that operate on struct cmsghdr. 827c478bd9Sstevel@tonic-gate * The CMSG_VALID macro does not assume that the last option buffer is padded. 837c478bd9Sstevel@tonic-gate */ 847c478bd9Sstevel@tonic-gate #define CMSG_CONTENT(cmsg) (&((cmsg)[1])) 857c478bd9Sstevel@tonic-gate #define CMSG_CONTENTLEN(cmsg) ((cmsg)->cmsg_len - sizeof (struct cmsghdr)) 867c478bd9Sstevel@tonic-gate #define CMSG_VALID(cmsg, start, end) \ 877c478bd9Sstevel@tonic-gate (ISALIGNED_cmsghdr(cmsg) && \ 887c478bd9Sstevel@tonic-gate ((uintptr_t)(cmsg) >= (uintptr_t)(start)) && \ 897c478bd9Sstevel@tonic-gate ((uintptr_t)(cmsg) < (uintptr_t)(end)) && \ 907c478bd9Sstevel@tonic-gate ((ssize_t)(cmsg)->cmsg_len >= sizeof (struct cmsghdr)) && \ 917c478bd9Sstevel@tonic-gate ((uintptr_t)(cmsg) + (cmsg)->cmsg_len <= (uintptr_t)(end))) 927c478bd9Sstevel@tonic-gate #define SO_LOCK_WAKEUP_TIME 3000 /* Wakeup time in milliseconds */ 937c478bd9Sstevel@tonic-gate 947c478bd9Sstevel@tonic-gate dev_t sockdev; /* For fsid in getattr */ 956cefaae1SJack Meng int sockfs_defer_nl7c_init = 0; 967c478bd9Sstevel@tonic-gate 977c478bd9Sstevel@tonic-gate struct socklist socklist; 987c478bd9Sstevel@tonic-gate 990f1702c5SYu Xiangning struct kmem_cache *socket_cache; 1000f1702c5SYu Xiangning 1017c478bd9Sstevel@tonic-gate static int sockfs_update(kstat_t *, int); 1027c478bd9Sstevel@tonic-gate static int sockfs_snapshot(kstat_t *, void *, int); 1030f1702c5SYu Xiangning extern smod_info_t *sotpi_smod_create(void); 1047c478bd9Sstevel@tonic-gate 1057c478bd9Sstevel@tonic-gate extern void sendfile_init(); 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate extern void nl7c_init(void); 1087c478bd9Sstevel@tonic-gate 1096cefaae1SJack Meng extern int modrootloaded; 1106cefaae1SJack Meng 1117c478bd9Sstevel@tonic-gate #define ADRSTRLEN (2 * sizeof (void *) + 1) 1127c478bd9Sstevel@tonic-gate /* 1137c478bd9Sstevel@tonic-gate * kernel structure for passing the sockinfo data back up to the user. 1147c478bd9Sstevel@tonic-gate * the strings array allows us to convert AF_UNIX addresses into strings 1157c478bd9Sstevel@tonic-gate * with a common method regardless of which n-bit kernel we're running. 1167c478bd9Sstevel@tonic-gate */ 1177c478bd9Sstevel@tonic-gate struct k_sockinfo { 1187c478bd9Sstevel@tonic-gate struct sockinfo ks_si; 1197c478bd9Sstevel@tonic-gate char ks_straddr[3][ADRSTRLEN]; 1207c478bd9Sstevel@tonic-gate }; 1217c478bd9Sstevel@tonic-gate 1227c478bd9Sstevel@tonic-gate /* 1237c478bd9Sstevel@tonic-gate * Translate from a device pathname (e.g. "/dev/tcp") to a vnode. 1247c478bd9Sstevel@tonic-gate * Returns with the vnode held. 1257c478bd9Sstevel@tonic-gate */ 1260f1702c5SYu Xiangning int 1277c478bd9Sstevel@tonic-gate sogetvp(char *devpath, vnode_t **vpp, int uioflag) 1287c478bd9Sstevel@tonic-gate { 1297c478bd9Sstevel@tonic-gate struct snode *csp; 1307c478bd9Sstevel@tonic-gate vnode_t *vp, *dvp; 1317c478bd9Sstevel@tonic-gate major_t maj; 1327c478bd9Sstevel@tonic-gate int error; 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate ASSERT(uioflag == UIO_SYSSPACE || uioflag == UIO_USERSPACE); 1350f1702c5SYu Xiangning 1367c478bd9Sstevel@tonic-gate /* 1377c478bd9Sstevel@tonic-gate * Lookup the underlying filesystem vnode. 1387c478bd9Sstevel@tonic-gate */ 1397c478bd9Sstevel@tonic-gate error = lookupname(devpath, uioflag, FOLLOW, NULLVPP, &vp); 1407c478bd9Sstevel@tonic-gate if (error) 1417c478bd9Sstevel@tonic-gate return (error); 1427c478bd9Sstevel@tonic-gate 1437c478bd9Sstevel@tonic-gate /* Check that it is the correct vnode */ 1447c478bd9Sstevel@tonic-gate if (vp->v_type != VCHR) { 1457c478bd9Sstevel@tonic-gate VN_RELE(vp); 1467c478bd9Sstevel@tonic-gate return (ENOTSOCK); 1477c478bd9Sstevel@tonic-gate } 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate /* 1507c478bd9Sstevel@tonic-gate * If devpath went through devfs, the device should already 1517c478bd9Sstevel@tonic-gate * be configured. If devpath is a mknod file, however, we 1527c478bd9Sstevel@tonic-gate * need to make sure the device is properly configured. 1537c478bd9Sstevel@tonic-gate * To do this, we do something similar to spec_open() 1547c478bd9Sstevel@tonic-gate * except that we resolve to the minor/leaf level since 1557c478bd9Sstevel@tonic-gate * we need to return a vnode. 1567c478bd9Sstevel@tonic-gate */ 1577c478bd9Sstevel@tonic-gate csp = VTOS(VTOS(vp)->s_commonvp); 1587c478bd9Sstevel@tonic-gate if (!(csp->s_flag & SDIPSET)) { 1597c478bd9Sstevel@tonic-gate char *pathname = kmem_alloc(MAXPATHLEN, KM_SLEEP); 1607c478bd9Sstevel@tonic-gate error = ddi_dev_pathname(vp->v_rdev, S_IFCHR, pathname); 1617c478bd9Sstevel@tonic-gate if (error == 0) 1627c478bd9Sstevel@tonic-gate error = devfs_lookupname(pathname, NULLVPP, &dvp); 1637c478bd9Sstevel@tonic-gate VN_RELE(vp); 1647c478bd9Sstevel@tonic-gate kmem_free(pathname, MAXPATHLEN); 1657c478bd9Sstevel@tonic-gate if (error != 0) 1667c478bd9Sstevel@tonic-gate return (ENXIO); 1677c478bd9Sstevel@tonic-gate vp = dvp; /* use the devfs vp */ 1687c478bd9Sstevel@tonic-gate } 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate /* device is configured at this point */ 1717c478bd9Sstevel@tonic-gate maj = getmajor(vp->v_rdev); 1727c478bd9Sstevel@tonic-gate if (!STREAMSTAB(maj)) { 1737c478bd9Sstevel@tonic-gate VN_RELE(vp); 1747c478bd9Sstevel@tonic-gate return (ENOSTR); 1757c478bd9Sstevel@tonic-gate } 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate *vpp = vp; 1787c478bd9Sstevel@tonic-gate return (0); 1797c478bd9Sstevel@tonic-gate } 1807c478bd9Sstevel@tonic-gate 1817c478bd9Sstevel@tonic-gate /* 1827c478bd9Sstevel@tonic-gate * Update the accessed, updated, or changed times in an sonode 1837c478bd9Sstevel@tonic-gate * with the current time. 1847c478bd9Sstevel@tonic-gate * 1857c478bd9Sstevel@tonic-gate * Note that both SunOS 4.X and 4.4BSD sockets do not present reasonable 1867c478bd9Sstevel@tonic-gate * attributes in a fstat call. (They return the current time and 0 for 1877c478bd9Sstevel@tonic-gate * all timestamps, respectively.) We maintain the current timestamps 1887c478bd9Sstevel@tonic-gate * here primarily so that should sockmod be popped the resulting 1897c478bd9Sstevel@tonic-gate * file descriptor will behave like a stream w.r.t. the timestamps. 1907c478bd9Sstevel@tonic-gate */ 1917c478bd9Sstevel@tonic-gate void 1927c478bd9Sstevel@tonic-gate so_update_attrs(struct sonode *so, int flag) 1937c478bd9Sstevel@tonic-gate { 1947c478bd9Sstevel@tonic-gate time_t now = gethrestime_sec(); 1957c478bd9Sstevel@tonic-gate 1960f1702c5SYu Xiangning if (SOCK_IS_NONSTR(so)) 1970f1702c5SYu Xiangning return; 1980f1702c5SYu Xiangning 1997c478bd9Sstevel@tonic-gate mutex_enter(&so->so_lock); 2007c478bd9Sstevel@tonic-gate so->so_flag |= flag; 2017c478bd9Sstevel@tonic-gate if (flag & SOACC) 2020f1702c5SYu Xiangning SOTOTPI(so)->sti_atime = now; 2037c478bd9Sstevel@tonic-gate if (flag & SOMOD) 2040f1702c5SYu Xiangning SOTOTPI(so)->sti_mtime = now; 2057c478bd9Sstevel@tonic-gate mutex_exit(&so->so_lock); 2067c478bd9Sstevel@tonic-gate } 2077c478bd9Sstevel@tonic-gate 2080f1702c5SYu Xiangning extern so_create_func_t sock_comm_create_function; 2090f1702c5SYu Xiangning extern so_destroy_func_t sock_comm_destroy_function; 2107c478bd9Sstevel@tonic-gate /* 2117c478bd9Sstevel@tonic-gate * Init function called when sockfs is loaded. 2127c478bd9Sstevel@tonic-gate */ 2137c478bd9Sstevel@tonic-gate int 2147c478bd9Sstevel@tonic-gate sockinit(int fstype, char *name) 2157c478bd9Sstevel@tonic-gate { 2167c478bd9Sstevel@tonic-gate static const fs_operation_def_t sock_vfsops_template[] = { 2177c478bd9Sstevel@tonic-gate NULL, NULL 2187c478bd9Sstevel@tonic-gate }; 2197c478bd9Sstevel@tonic-gate int error; 2207c478bd9Sstevel@tonic-gate major_t dev; 2217c478bd9Sstevel@tonic-gate char *err_str; 2227c478bd9Sstevel@tonic-gate 2237c478bd9Sstevel@tonic-gate error = vfs_setfsops(fstype, sock_vfsops_template, NULL); 2247c478bd9Sstevel@tonic-gate if (error != 0) { 2252caf0dcdSrshoaib zcmn_err(GLOBAL_ZONEID, CE_WARN, 2262caf0dcdSrshoaib "sockinit: bad vfs ops template"); 2277c478bd9Sstevel@tonic-gate return (error); 2287c478bd9Sstevel@tonic-gate } 2297c478bd9Sstevel@tonic-gate 2300f1702c5SYu Xiangning error = vn_make_ops(name, socket_vnodeops_template, 2310f1702c5SYu Xiangning &socket_vnodeops); 2327c478bd9Sstevel@tonic-gate if (error != 0) { 2330f1702c5SYu Xiangning err_str = "sockinit: bad socket vnode ops template"; 2347c478bd9Sstevel@tonic-gate /* vn_make_ops() does not reset socktpi_vnodeops on failure. */ 2350f1702c5SYu Xiangning socket_vnodeops = NULL; 2367c478bd9Sstevel@tonic-gate goto failure; 2377c478bd9Sstevel@tonic-gate } 2387c478bd9Sstevel@tonic-gate 2390f1702c5SYu Xiangning socket_cache = kmem_cache_create("socket_cache", 2400f1702c5SYu Xiangning sizeof (struct sonode), 0, sonode_constructor, 2410f1702c5SYu Xiangning sonode_destructor, NULL, NULL, NULL, 0); 2427c478bd9Sstevel@tonic-gate 2430f1702c5SYu Xiangning error = socktpi_init(); 24474e20cfeSnh145002 if (error != 0) { 24574e20cfeSnh145002 err_str = NULL; 24674e20cfeSnh145002 goto failure; 24774e20cfeSnh145002 } 24874e20cfeSnh145002 249bbc000e5SAnders Persson error = sod_init(); 25017169044Sbrutus if (error != 0) { 25117169044Sbrutus err_str = NULL; 25217169044Sbrutus goto failure; 25317169044Sbrutus } 25417169044Sbrutus 2557c478bd9Sstevel@tonic-gate /* 2560f1702c5SYu Xiangning * Set up the default create and destroy functions 2577c478bd9Sstevel@tonic-gate */ 2580f1702c5SYu Xiangning sock_comm_create_function = socket_sonode_create; 2590f1702c5SYu Xiangning sock_comm_destroy_function = socket_sonode_destroy; 2607c478bd9Sstevel@tonic-gate 2617c478bd9Sstevel@tonic-gate /* 2627c478bd9Sstevel@tonic-gate * Build initial list mapping socket parameters to vnode. 2637c478bd9Sstevel@tonic-gate */ 2640f1702c5SYu Xiangning smod_init(); 2650f1702c5SYu Xiangning smod_add(sotpi_smod_create()); 2660f1702c5SYu Xiangning 2670f1702c5SYu Xiangning sockparams_init(); 2687c478bd9Sstevel@tonic-gate 2697c478bd9Sstevel@tonic-gate /* 2707c478bd9Sstevel@tonic-gate * If sockets are needed before init runs /sbin/soconfig 2717c478bd9Sstevel@tonic-gate * it is possible to preload the sockparams list here using 2727c478bd9Sstevel@tonic-gate * calls like: 2737c478bd9Sstevel@tonic-gate * sockconfig(1,2,3, "/dev/tcp", 0); 2747c478bd9Sstevel@tonic-gate */ 2757c478bd9Sstevel@tonic-gate 2767c478bd9Sstevel@tonic-gate /* 2777c478bd9Sstevel@tonic-gate * Create a unique dev_t for use in so_fsid. 2787c478bd9Sstevel@tonic-gate */ 2797c478bd9Sstevel@tonic-gate 2807c478bd9Sstevel@tonic-gate if ((dev = getudev()) == (major_t)-1) 2817c478bd9Sstevel@tonic-gate dev = 0; 2827c478bd9Sstevel@tonic-gate sockdev = makedevice(dev, 0); 2837c478bd9Sstevel@tonic-gate 2847c478bd9Sstevel@tonic-gate mutex_init(&socklist.sl_lock, NULL, MUTEX_DEFAULT, NULL); 2857c478bd9Sstevel@tonic-gate sendfile_init(); 2866cefaae1SJack Meng if (!modrootloaded) { 2876cefaae1SJack Meng sockfs_defer_nl7c_init = 1; 2886cefaae1SJack Meng } else { 2897c478bd9Sstevel@tonic-gate nl7c_init(); 2906cefaae1SJack Meng } 2917c478bd9Sstevel@tonic-gate 2927c478bd9Sstevel@tonic-gate return (0); 2937c478bd9Sstevel@tonic-gate 2947c478bd9Sstevel@tonic-gate failure: 2957c478bd9Sstevel@tonic-gate (void) vfs_freevfsops_by_type(fstype); 2960f1702c5SYu Xiangning if (socket_vnodeops != NULL) 2970f1702c5SYu Xiangning vn_freevnodeops(socket_vnodeops); 2987c478bd9Sstevel@tonic-gate if (err_str != NULL) 2992caf0dcdSrshoaib zcmn_err(GLOBAL_ZONEID, CE_WARN, err_str); 3007c478bd9Sstevel@tonic-gate return (error); 3017c478bd9Sstevel@tonic-gate } 3027c478bd9Sstevel@tonic-gate 3037c478bd9Sstevel@tonic-gate /* 3047c478bd9Sstevel@tonic-gate * Caller must hold the mutex. Used to set SOLOCKED. 3057c478bd9Sstevel@tonic-gate */ 3067c478bd9Sstevel@tonic-gate void 3077c478bd9Sstevel@tonic-gate so_lock_single(struct sonode *so) 3087c478bd9Sstevel@tonic-gate { 3097c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3107c478bd9Sstevel@tonic-gate 3117c478bd9Sstevel@tonic-gate while (so->so_flag & (SOLOCKED | SOASYNC_UNBIND)) { 312*6a571a2dSAnders Persson cv_wait_stop(&so->so_single_cv, &so->so_lock, 3137c478bd9Sstevel@tonic-gate SO_LOCK_WAKEUP_TIME); 3147c478bd9Sstevel@tonic-gate } 3157c478bd9Sstevel@tonic-gate so->so_flag |= SOLOCKED; 3167c478bd9Sstevel@tonic-gate } 3177c478bd9Sstevel@tonic-gate 3187c478bd9Sstevel@tonic-gate /* 3197c478bd9Sstevel@tonic-gate * Caller must hold the mutex and pass in SOLOCKED or SOASYNC_UNBIND. 3207c478bd9Sstevel@tonic-gate * Used to clear SOLOCKED or SOASYNC_UNBIND. 3217c478bd9Sstevel@tonic-gate */ 3227c478bd9Sstevel@tonic-gate void 3237c478bd9Sstevel@tonic-gate so_unlock_single(struct sonode *so, int flag) 3247c478bd9Sstevel@tonic-gate { 3257c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3267c478bd9Sstevel@tonic-gate ASSERT(flag & (SOLOCKED|SOASYNC_UNBIND)); 3277c478bd9Sstevel@tonic-gate ASSERT((flag & ~(SOLOCKED|SOASYNC_UNBIND)) == 0); 3287c478bd9Sstevel@tonic-gate ASSERT(so->so_flag & flag); 3297c478bd9Sstevel@tonic-gate /* 3300f1702c5SYu Xiangning * Process the T_DISCON_IND on sti_discon_ind_mp. 3317c478bd9Sstevel@tonic-gate * 3327c478bd9Sstevel@tonic-gate * Call to so_drain_discon_ind will result in so_lock 3337c478bd9Sstevel@tonic-gate * being dropped and re-acquired later. 3347c478bd9Sstevel@tonic-gate */ 3350f1702c5SYu Xiangning if (!SOCK_IS_NONSTR(so)) { 3360f1702c5SYu Xiangning sotpi_info_t *sti = SOTOTPI(so); 3370f1702c5SYu Xiangning 3380f1702c5SYu Xiangning if (sti->sti_discon_ind_mp != NULL) 3397c478bd9Sstevel@tonic-gate so_drain_discon_ind(so); 3400f1702c5SYu Xiangning } 3417c478bd9Sstevel@tonic-gate 342*6a571a2dSAnders Persson cv_signal(&so->so_single_cv); 343*6a571a2dSAnders Persson so->so_flag &= ~flag; 3447c478bd9Sstevel@tonic-gate } 3457c478bd9Sstevel@tonic-gate 3467c478bd9Sstevel@tonic-gate /* 3477c478bd9Sstevel@tonic-gate * Caller must hold the mutex. Used to set SOREADLOCKED. 3487c478bd9Sstevel@tonic-gate * If the caller wants nonblocking behavior it should set fmode. 3497c478bd9Sstevel@tonic-gate */ 3507c478bd9Sstevel@tonic-gate int 3517c478bd9Sstevel@tonic-gate so_lock_read(struct sonode *so, int fmode) 3527c478bd9Sstevel@tonic-gate { 3537c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3547c478bd9Sstevel@tonic-gate 3557c478bd9Sstevel@tonic-gate while (so->so_flag & SOREADLOCKED) { 3567c478bd9Sstevel@tonic-gate if (fmode & (FNDELAY|FNONBLOCK)) 3577c478bd9Sstevel@tonic-gate return (EWOULDBLOCK); 358*6a571a2dSAnders Persson cv_wait_stop(&so->so_read_cv, &so->so_lock, 3597c478bd9Sstevel@tonic-gate SO_LOCK_WAKEUP_TIME); 3607c478bd9Sstevel@tonic-gate } 3617c478bd9Sstevel@tonic-gate so->so_flag |= SOREADLOCKED; 3627c478bd9Sstevel@tonic-gate return (0); 3637c478bd9Sstevel@tonic-gate } 3647c478bd9Sstevel@tonic-gate 3657c478bd9Sstevel@tonic-gate /* 3667c478bd9Sstevel@tonic-gate * Like so_lock_read above but allows signals. 3677c478bd9Sstevel@tonic-gate */ 3687c478bd9Sstevel@tonic-gate int 3697c478bd9Sstevel@tonic-gate so_lock_read_intr(struct sonode *so, int fmode) 3707c478bd9Sstevel@tonic-gate { 3717c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3727c478bd9Sstevel@tonic-gate 3737c478bd9Sstevel@tonic-gate while (so->so_flag & SOREADLOCKED) { 3747c478bd9Sstevel@tonic-gate if (fmode & (FNDELAY|FNONBLOCK)) 3757c478bd9Sstevel@tonic-gate return (EWOULDBLOCK); 376*6a571a2dSAnders Persson if (!cv_wait_sig(&so->so_read_cv, &so->so_lock)) 3777c478bd9Sstevel@tonic-gate return (EINTR); 3787c478bd9Sstevel@tonic-gate } 3797c478bd9Sstevel@tonic-gate so->so_flag |= SOREADLOCKED; 3807c478bd9Sstevel@tonic-gate return (0); 3817c478bd9Sstevel@tonic-gate } 3827c478bd9Sstevel@tonic-gate 3837c478bd9Sstevel@tonic-gate /* 3847c478bd9Sstevel@tonic-gate * Caller must hold the mutex. Used to clear SOREADLOCKED, 3857c478bd9Sstevel@tonic-gate * set in so_lock_read() or so_lock_read_intr(). 3867c478bd9Sstevel@tonic-gate */ 3877c478bd9Sstevel@tonic-gate void 3887c478bd9Sstevel@tonic-gate so_unlock_read(struct sonode *so) 3897c478bd9Sstevel@tonic-gate { 3907c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 3917c478bd9Sstevel@tonic-gate ASSERT(so->so_flag & SOREADLOCKED); 3927c478bd9Sstevel@tonic-gate 393*6a571a2dSAnders Persson cv_signal(&so->so_read_cv); 394*6a571a2dSAnders Persson so->so_flag &= ~SOREADLOCKED; 3957c478bd9Sstevel@tonic-gate } 3967c478bd9Sstevel@tonic-gate 3977c478bd9Sstevel@tonic-gate /* 3987c478bd9Sstevel@tonic-gate * Verify that the specified offset falls within the mblk and 3997c478bd9Sstevel@tonic-gate * that the resulting pointer is aligned. 4007c478bd9Sstevel@tonic-gate * Returns NULL if not. 4017c478bd9Sstevel@tonic-gate */ 4027c478bd9Sstevel@tonic-gate void * 4037c478bd9Sstevel@tonic-gate sogetoff(mblk_t *mp, t_uscalar_t offset, 4047c478bd9Sstevel@tonic-gate t_uscalar_t length, uint_t align_size) 4057c478bd9Sstevel@tonic-gate { 4067c478bd9Sstevel@tonic-gate uintptr_t ptr1, ptr2; 4077c478bd9Sstevel@tonic-gate 4087c478bd9Sstevel@tonic-gate ASSERT(mp && mp->b_wptr >= mp->b_rptr); 4097c478bd9Sstevel@tonic-gate ptr1 = (uintptr_t)mp->b_rptr + offset; 4107c478bd9Sstevel@tonic-gate ptr2 = (uintptr_t)ptr1 + length; 4117c478bd9Sstevel@tonic-gate if (ptr1 < (uintptr_t)mp->b_rptr || ptr2 > (uintptr_t)mp->b_wptr) { 4127c478bd9Sstevel@tonic-gate eprintline(0); 4137c478bd9Sstevel@tonic-gate return (NULL); 4147c478bd9Sstevel@tonic-gate } 4157c478bd9Sstevel@tonic-gate if ((ptr1 & (align_size - 1)) != 0) { 4167c478bd9Sstevel@tonic-gate eprintline(0); 4177c478bd9Sstevel@tonic-gate return (NULL); 4187c478bd9Sstevel@tonic-gate } 4197c478bd9Sstevel@tonic-gate return ((void *)ptr1); 4207c478bd9Sstevel@tonic-gate } 4217c478bd9Sstevel@tonic-gate 4227c478bd9Sstevel@tonic-gate /* 4237c478bd9Sstevel@tonic-gate * Return the AF_UNIX underlying filesystem vnode matching a given name. 4247c478bd9Sstevel@tonic-gate * Makes sure the sending and the destination sonodes are compatible. 4257c478bd9Sstevel@tonic-gate * The vnode is returned held. 4267c478bd9Sstevel@tonic-gate * 4277c478bd9Sstevel@tonic-gate * The underlying filesystem VSOCK vnode has a v_stream pointer that 4287c478bd9Sstevel@tonic-gate * references the actual stream head (hence indirectly the actual sonode). 4297c478bd9Sstevel@tonic-gate */ 4307c478bd9Sstevel@tonic-gate static int 4317c478bd9Sstevel@tonic-gate so_ux_lookup(struct sonode *so, struct sockaddr_un *soun, int checkaccess, 4327c478bd9Sstevel@tonic-gate vnode_t **vpp) 4337c478bd9Sstevel@tonic-gate { 4347c478bd9Sstevel@tonic-gate vnode_t *vp; /* Underlying filesystem vnode */ 4359bf9355bSRic Aleshire vnode_t *rvp; /* real vnode */ 4367c478bd9Sstevel@tonic-gate vnode_t *svp; /* sockfs vnode */ 4377c478bd9Sstevel@tonic-gate struct sonode *so2; 4387c478bd9Sstevel@tonic-gate int error; 4397c478bd9Sstevel@tonic-gate 4403eceedbbSrh87107 dprintso(so, 1, ("so_ux_lookup(%p) name <%s>\n", (void *)so, 4413eceedbbSrh87107 soun->sun_path)); 4427c478bd9Sstevel@tonic-gate 4437c478bd9Sstevel@tonic-gate error = lookupname(soun->sun_path, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp); 4447c478bd9Sstevel@tonic-gate if (error) { 4457c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4467c478bd9Sstevel@tonic-gate return (error); 4477c478bd9Sstevel@tonic-gate } 4489bf9355bSRic Aleshire 4499bf9355bSRic Aleshire /* 4509bf9355bSRic Aleshire * Traverse lofs mounts get the real vnode 4519bf9355bSRic Aleshire */ 4529bf9355bSRic Aleshire if (VOP_REALVP(vp, &rvp, NULL) == 0) { 4539bf9355bSRic Aleshire VN_HOLD(rvp); /* hold the real vnode */ 4549bf9355bSRic Aleshire VN_RELE(vp); /* release hold from lookup */ 4559bf9355bSRic Aleshire vp = rvp; 4569bf9355bSRic Aleshire } 4579bf9355bSRic Aleshire 4587c478bd9Sstevel@tonic-gate if (vp->v_type != VSOCK) { 4597c478bd9Sstevel@tonic-gate error = ENOTSOCK; 4607c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4617c478bd9Sstevel@tonic-gate goto done2; 4627c478bd9Sstevel@tonic-gate } 4637c478bd9Sstevel@tonic-gate 4647c478bd9Sstevel@tonic-gate if (checkaccess) { 4657c478bd9Sstevel@tonic-gate /* 4667c478bd9Sstevel@tonic-gate * Check that we have permissions to access the destination 4677c478bd9Sstevel@tonic-gate * vnode. This check is not done in BSD but it is required 4687c478bd9Sstevel@tonic-gate * by X/Open. 4697c478bd9Sstevel@tonic-gate */ 470da6c28aaSamw if (error = VOP_ACCESS(vp, VREAD|VWRITE, 0, CRED(), NULL)) { 4717c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4727c478bd9Sstevel@tonic-gate goto done2; 4737c478bd9Sstevel@tonic-gate } 4747c478bd9Sstevel@tonic-gate } 4757c478bd9Sstevel@tonic-gate 4767c478bd9Sstevel@tonic-gate /* 4777c478bd9Sstevel@tonic-gate * Check if the remote socket has been closed. 4787c478bd9Sstevel@tonic-gate * 4797c478bd9Sstevel@tonic-gate * Synchronize with vn_rele_stream by holding v_lock while traversing 4807c478bd9Sstevel@tonic-gate * v_stream->sd_vnode. 4817c478bd9Sstevel@tonic-gate */ 4827c478bd9Sstevel@tonic-gate mutex_enter(&vp->v_lock); 4837c478bd9Sstevel@tonic-gate if (vp->v_stream == NULL) { 4847c478bd9Sstevel@tonic-gate mutex_exit(&vp->v_lock); 4857c478bd9Sstevel@tonic-gate if (so->so_type == SOCK_DGRAM) 4867c478bd9Sstevel@tonic-gate error = EDESTADDRREQ; 4877c478bd9Sstevel@tonic-gate else 4887c478bd9Sstevel@tonic-gate error = ECONNREFUSED; 4897c478bd9Sstevel@tonic-gate 4907c478bd9Sstevel@tonic-gate eprintsoline(so, error); 4917c478bd9Sstevel@tonic-gate goto done2; 4927c478bd9Sstevel@tonic-gate } 4937c478bd9Sstevel@tonic-gate ASSERT(vp->v_stream->sd_vnode); 4947c478bd9Sstevel@tonic-gate svp = vp->v_stream->sd_vnode; 4957c478bd9Sstevel@tonic-gate /* 4967c478bd9Sstevel@tonic-gate * holding v_lock on underlying filesystem vnode and acquiring 4977c478bd9Sstevel@tonic-gate * it on sockfs vnode. Assumes that no code ever attempts to 4987c478bd9Sstevel@tonic-gate * acquire these locks in the reverse order. 4997c478bd9Sstevel@tonic-gate */ 5007c478bd9Sstevel@tonic-gate VN_HOLD(svp); 5017c478bd9Sstevel@tonic-gate mutex_exit(&vp->v_lock); 5027c478bd9Sstevel@tonic-gate 5037c478bd9Sstevel@tonic-gate if (svp->v_type != VSOCK) { 5047c478bd9Sstevel@tonic-gate error = ENOTSOCK; 5057c478bd9Sstevel@tonic-gate eprintsoline(so, error); 5067c478bd9Sstevel@tonic-gate goto done; 5077c478bd9Sstevel@tonic-gate } 5087c478bd9Sstevel@tonic-gate 5097c478bd9Sstevel@tonic-gate so2 = VTOSO(svp); 5107c478bd9Sstevel@tonic-gate 5117c478bd9Sstevel@tonic-gate if (so->so_type != so2->so_type) { 5127c478bd9Sstevel@tonic-gate error = EPROTOTYPE; 5137c478bd9Sstevel@tonic-gate eprintsoline(so, error); 5147c478bd9Sstevel@tonic-gate goto done; 5157c478bd9Sstevel@tonic-gate } 5167c478bd9Sstevel@tonic-gate 5177c478bd9Sstevel@tonic-gate VN_RELE(svp); 5187c478bd9Sstevel@tonic-gate *vpp = vp; 5197c478bd9Sstevel@tonic-gate return (0); 5207c478bd9Sstevel@tonic-gate 5217c478bd9Sstevel@tonic-gate done: 5227c478bd9Sstevel@tonic-gate VN_RELE(svp); 5237c478bd9Sstevel@tonic-gate done2: 5247c478bd9Sstevel@tonic-gate VN_RELE(vp); 5257c478bd9Sstevel@tonic-gate return (error); 5267c478bd9Sstevel@tonic-gate } 5277c478bd9Sstevel@tonic-gate 5287c478bd9Sstevel@tonic-gate /* 5297c478bd9Sstevel@tonic-gate * Verify peer address for connect and sendto/sendmsg. 5307c478bd9Sstevel@tonic-gate * Since sendto/sendmsg would not get synchronous errors from the transport 5317c478bd9Sstevel@tonic-gate * provider we have to do these ugly checks in the socket layer to 5327c478bd9Sstevel@tonic-gate * preserve compatibility with SunOS 4.X. 5337c478bd9Sstevel@tonic-gate */ 5347c478bd9Sstevel@tonic-gate int 5357c478bd9Sstevel@tonic-gate so_addr_verify(struct sonode *so, const struct sockaddr *name, 5367c478bd9Sstevel@tonic-gate socklen_t namelen) 5377c478bd9Sstevel@tonic-gate { 5387c478bd9Sstevel@tonic-gate int family; 5397c478bd9Sstevel@tonic-gate 540903a11ebSrh87107 dprintso(so, 1, ("so_addr_verify(%p, %p, %d)\n", 541903a11ebSrh87107 (void *)so, (void *)name, namelen)); 5427c478bd9Sstevel@tonic-gate 5437c478bd9Sstevel@tonic-gate ASSERT(name != NULL); 5447c478bd9Sstevel@tonic-gate 5457c478bd9Sstevel@tonic-gate family = so->so_family; 5467c478bd9Sstevel@tonic-gate switch (family) { 5477c478bd9Sstevel@tonic-gate case AF_INET: 5487c478bd9Sstevel@tonic-gate if (name->sa_family != family) { 5497c478bd9Sstevel@tonic-gate eprintsoline(so, EAFNOSUPPORT); 5507c478bd9Sstevel@tonic-gate return (EAFNOSUPPORT); 5517c478bd9Sstevel@tonic-gate } 5527c478bd9Sstevel@tonic-gate if (namelen != (socklen_t)sizeof (struct sockaddr_in)) { 5537c478bd9Sstevel@tonic-gate eprintsoline(so, EINVAL); 5547c478bd9Sstevel@tonic-gate return (EINVAL); 5557c478bd9Sstevel@tonic-gate } 5567c478bd9Sstevel@tonic-gate break; 5577c478bd9Sstevel@tonic-gate case AF_INET6: { 5587c478bd9Sstevel@tonic-gate #ifdef DEBUG 5597c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 5607c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 5617c478bd9Sstevel@tonic-gate 5627c478bd9Sstevel@tonic-gate if (name->sa_family != family) { 5637c478bd9Sstevel@tonic-gate eprintsoline(so, EAFNOSUPPORT); 5647c478bd9Sstevel@tonic-gate return (EAFNOSUPPORT); 5657c478bd9Sstevel@tonic-gate } 5667c478bd9Sstevel@tonic-gate if (namelen != (socklen_t)sizeof (struct sockaddr_in6)) { 5677c478bd9Sstevel@tonic-gate eprintsoline(so, EINVAL); 5687c478bd9Sstevel@tonic-gate return (EINVAL); 5697c478bd9Sstevel@tonic-gate } 5707c478bd9Sstevel@tonic-gate #ifdef DEBUG 5717c478bd9Sstevel@tonic-gate /* Verify that apps don't forget to clear sin6_scope_id etc */ 5727c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)name; 5737c478bd9Sstevel@tonic-gate if (sin6->sin6_scope_id != 0 && 5747c478bd9Sstevel@tonic-gate !IN6_IS_ADDR_LINKSCOPE(&sin6->sin6_addr)) { 5752caf0dcdSrshoaib zcmn_err(getzoneid(), CE_WARN, 5767c478bd9Sstevel@tonic-gate "connect/send* with uninitialized sin6_scope_id " 5777c478bd9Sstevel@tonic-gate "(%d) on socket. Pid = %d\n", 5787c478bd9Sstevel@tonic-gate (int)sin6->sin6_scope_id, (int)curproc->p_pid); 5797c478bd9Sstevel@tonic-gate } 5807c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 5817c478bd9Sstevel@tonic-gate break; 5827c478bd9Sstevel@tonic-gate } 5837c478bd9Sstevel@tonic-gate case AF_UNIX: 5840f1702c5SYu Xiangning if (SOTOTPI(so)->sti_faddr_noxlate) { 5857c478bd9Sstevel@tonic-gate return (0); 5867c478bd9Sstevel@tonic-gate } 5877c478bd9Sstevel@tonic-gate if (namelen < (socklen_t)sizeof (short)) { 5887c478bd9Sstevel@tonic-gate eprintsoline(so, ENOENT); 5897c478bd9Sstevel@tonic-gate return (ENOENT); 5907c478bd9Sstevel@tonic-gate } 5917c478bd9Sstevel@tonic-gate if (name->sa_family != family) { 5927c478bd9Sstevel@tonic-gate eprintsoline(so, EAFNOSUPPORT); 5937c478bd9Sstevel@tonic-gate return (EAFNOSUPPORT); 5947c478bd9Sstevel@tonic-gate } 5957c478bd9Sstevel@tonic-gate /* MAXPATHLEN + soun_family + nul termination */ 5967c478bd9Sstevel@tonic-gate if (namelen > (socklen_t)(MAXPATHLEN + sizeof (short) + 1)) { 5977c478bd9Sstevel@tonic-gate eprintsoline(so, ENAMETOOLONG); 5987c478bd9Sstevel@tonic-gate return (ENAMETOOLONG); 5997c478bd9Sstevel@tonic-gate } 6007c478bd9Sstevel@tonic-gate 6017c478bd9Sstevel@tonic-gate break; 6027c478bd9Sstevel@tonic-gate 6037c478bd9Sstevel@tonic-gate default: 6047c478bd9Sstevel@tonic-gate /* 6057c478bd9Sstevel@tonic-gate * Default is don't do any length or sa_family check 6067c478bd9Sstevel@tonic-gate * to allow non-sockaddr style addresses. 6077c478bd9Sstevel@tonic-gate */ 6087c478bd9Sstevel@tonic-gate break; 6097c478bd9Sstevel@tonic-gate } 6107c478bd9Sstevel@tonic-gate 6117c478bd9Sstevel@tonic-gate return (0); 6127c478bd9Sstevel@tonic-gate } 6137c478bd9Sstevel@tonic-gate 6147c478bd9Sstevel@tonic-gate 6157c478bd9Sstevel@tonic-gate /* 6167c478bd9Sstevel@tonic-gate * Translate an AF_UNIX sockaddr_un to the transport internal name. 6177c478bd9Sstevel@tonic-gate * Assumes caller has called so_addr_verify first. 6187c478bd9Sstevel@tonic-gate */ 6197c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 6207c478bd9Sstevel@tonic-gate int 6217c478bd9Sstevel@tonic-gate so_ux_addr_xlate(struct sonode *so, struct sockaddr *name, 6227c478bd9Sstevel@tonic-gate socklen_t namelen, int checkaccess, 6237c478bd9Sstevel@tonic-gate void **addrp, socklen_t *addrlenp) 6247c478bd9Sstevel@tonic-gate { 6257c478bd9Sstevel@tonic-gate int error; 6267c478bd9Sstevel@tonic-gate struct sockaddr_un *soun; 6277c478bd9Sstevel@tonic-gate vnode_t *vp; 6287c478bd9Sstevel@tonic-gate void *addr; 6297c478bd9Sstevel@tonic-gate socklen_t addrlen; 6300f1702c5SYu Xiangning sotpi_info_t *sti = SOTOTPI(so); 6317c478bd9Sstevel@tonic-gate 6327c478bd9Sstevel@tonic-gate dprintso(so, 1, ("so_ux_addr_xlate(%p, %p, %d, %d)\n", 633903a11ebSrh87107 (void *)so, (void *)name, namelen, checkaccess)); 6347c478bd9Sstevel@tonic-gate 6357c478bd9Sstevel@tonic-gate ASSERT(name != NULL); 6367c478bd9Sstevel@tonic-gate ASSERT(so->so_family == AF_UNIX); 6370f1702c5SYu Xiangning ASSERT(!sti->sti_faddr_noxlate); 6387c478bd9Sstevel@tonic-gate ASSERT(namelen >= (socklen_t)sizeof (short)); 6397c478bd9Sstevel@tonic-gate ASSERT(name->sa_family == AF_UNIX); 6407c478bd9Sstevel@tonic-gate soun = (struct sockaddr_un *)name; 6417c478bd9Sstevel@tonic-gate /* 6427c478bd9Sstevel@tonic-gate * Lookup vnode for the specified path name and verify that 6437c478bd9Sstevel@tonic-gate * it is a socket. 6447c478bd9Sstevel@tonic-gate */ 6457c478bd9Sstevel@tonic-gate error = so_ux_lookup(so, soun, checkaccess, &vp); 6467c478bd9Sstevel@tonic-gate if (error) { 6477c478bd9Sstevel@tonic-gate eprintsoline(so, error); 6487c478bd9Sstevel@tonic-gate return (error); 6497c478bd9Sstevel@tonic-gate } 6507c478bd9Sstevel@tonic-gate /* 6517c478bd9Sstevel@tonic-gate * Use the address of the peer vnode as the address to send 6527c478bd9Sstevel@tonic-gate * to. We release the peer vnode here. In case it has been 6537c478bd9Sstevel@tonic-gate * closed by the time the T_CONN_REQ or T_UNIDATA_REQ reaches the 6547c478bd9Sstevel@tonic-gate * transport the message will get an error or be dropped. 6557c478bd9Sstevel@tonic-gate */ 6560f1702c5SYu Xiangning sti->sti_ux_faddr.soua_vp = vp; 6570f1702c5SYu Xiangning sti->sti_ux_faddr.soua_magic = SOU_MAGIC_EXPLICIT; 6580f1702c5SYu Xiangning addr = &sti->sti_ux_faddr; 6590f1702c5SYu Xiangning addrlen = (socklen_t)sizeof (sti->sti_ux_faddr); 660903a11ebSrh87107 dprintso(so, 1, ("ux_xlate UNIX: addrlen %d, vp %p\n", 661903a11ebSrh87107 addrlen, (void *)vp)); 6627c478bd9Sstevel@tonic-gate VN_RELE(vp); 6637c478bd9Sstevel@tonic-gate *addrp = addr; 6647c478bd9Sstevel@tonic-gate *addrlenp = (socklen_t)addrlen; 6657c478bd9Sstevel@tonic-gate return (0); 6667c478bd9Sstevel@tonic-gate } 6677c478bd9Sstevel@tonic-gate 6687c478bd9Sstevel@tonic-gate /* 6697c478bd9Sstevel@tonic-gate * Esballoc free function for messages that contain SO_FILEP option. 6707c478bd9Sstevel@tonic-gate * Decrement the reference count on the file pointers using closef. 6717c478bd9Sstevel@tonic-gate */ 6727c478bd9Sstevel@tonic-gate void 6737c478bd9Sstevel@tonic-gate fdbuf_free(struct fdbuf *fdbuf) 6747c478bd9Sstevel@tonic-gate { 6757c478bd9Sstevel@tonic-gate int i; 6767c478bd9Sstevel@tonic-gate struct file *fp; 6777c478bd9Sstevel@tonic-gate 6787c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_free: %d fds\n", fdbuf->fd_numfd)); 6797c478bd9Sstevel@tonic-gate for (i = 0; i < fdbuf->fd_numfd; i++) { 6807c478bd9Sstevel@tonic-gate /* 6817c478bd9Sstevel@tonic-gate * We need pointer size alignment for fd_fds. On a LP64 6827c478bd9Sstevel@tonic-gate * kernel, the required alignment is 8 bytes while 6837c478bd9Sstevel@tonic-gate * the option headers and values are only 4 bytes 6847c478bd9Sstevel@tonic-gate * aligned. So its safer to do a bcopy compared to 6857c478bd9Sstevel@tonic-gate * assigning fdbuf->fd_fds[i] to fp. 6867c478bd9Sstevel@tonic-gate */ 6877c478bd9Sstevel@tonic-gate bcopy((char *)&fdbuf->fd_fds[i], (char *)&fp, sizeof (fp)); 688903a11ebSrh87107 dprint(1, ("fdbuf_free: [%d] = %p\n", i, (void *)fp)); 6897c478bd9Sstevel@tonic-gate (void) closef(fp); 6907c478bd9Sstevel@tonic-gate } 6917c478bd9Sstevel@tonic-gate if (fdbuf->fd_ebuf != NULL) 6927c478bd9Sstevel@tonic-gate kmem_free(fdbuf->fd_ebuf, fdbuf->fd_ebuflen); 6937c478bd9Sstevel@tonic-gate kmem_free(fdbuf, fdbuf->fd_size); 6947c478bd9Sstevel@tonic-gate } 6957c478bd9Sstevel@tonic-gate 6967c478bd9Sstevel@tonic-gate /* 697bd118333Smeem * Allocate an esballoc'ed message for AF_UNIX file descriptor passing. 698bd118333Smeem * Waits if memory is not available. 6997c478bd9Sstevel@tonic-gate */ 7007c478bd9Sstevel@tonic-gate mblk_t * 7017c478bd9Sstevel@tonic-gate fdbuf_allocmsg(int size, struct fdbuf *fdbuf) 7027c478bd9Sstevel@tonic-gate { 703bd118333Smeem uchar_t *buf; 7047c478bd9Sstevel@tonic-gate mblk_t *mp; 7057c478bd9Sstevel@tonic-gate 7067c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_allocmsg: size %d, %d fds\n", size, fdbuf->fd_numfd)); 7077c478bd9Sstevel@tonic-gate buf = kmem_alloc(size, KM_SLEEP); 7087c478bd9Sstevel@tonic-gate fdbuf->fd_ebuf = (caddr_t)buf; 7097c478bd9Sstevel@tonic-gate fdbuf->fd_ebuflen = size; 7107c478bd9Sstevel@tonic-gate fdbuf->fd_frtn.free_func = fdbuf_free; 7117c478bd9Sstevel@tonic-gate fdbuf->fd_frtn.free_arg = (caddr_t)fdbuf; 7127c478bd9Sstevel@tonic-gate 713bd118333Smeem mp = esballoc_wait(buf, size, BPRI_MED, &fdbuf->fd_frtn); 7147c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 7157c478bd9Sstevel@tonic-gate return (mp); 7167c478bd9Sstevel@tonic-gate } 7177c478bd9Sstevel@tonic-gate 7187c478bd9Sstevel@tonic-gate /* 7197c478bd9Sstevel@tonic-gate * Extract file descriptors from a fdbuf. 7207c478bd9Sstevel@tonic-gate * Return list in rights/rightslen. 7217c478bd9Sstevel@tonic-gate */ 7227c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 7237c478bd9Sstevel@tonic-gate static int 7247c478bd9Sstevel@tonic-gate fdbuf_extract(struct fdbuf *fdbuf, void *rights, int rightslen) 7257c478bd9Sstevel@tonic-gate { 7267c478bd9Sstevel@tonic-gate int i, fd; 7277c478bd9Sstevel@tonic-gate int *rp; 7287c478bd9Sstevel@tonic-gate struct file *fp; 7297c478bd9Sstevel@tonic-gate int numfd; 7307c478bd9Sstevel@tonic-gate 7317c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_extract: %d fds, len %d\n", 7327c478bd9Sstevel@tonic-gate fdbuf->fd_numfd, rightslen)); 7337c478bd9Sstevel@tonic-gate 7347c478bd9Sstevel@tonic-gate numfd = fdbuf->fd_numfd; 7357c478bd9Sstevel@tonic-gate ASSERT(rightslen == numfd * (int)sizeof (int)); 7367c478bd9Sstevel@tonic-gate 7377c478bd9Sstevel@tonic-gate /* 7387c478bd9Sstevel@tonic-gate * Allocate a file descriptor and increment the f_count. 7397c478bd9Sstevel@tonic-gate * The latter is needed since we always call fdbuf_free 7407c478bd9Sstevel@tonic-gate * which performs a closef. 7417c478bd9Sstevel@tonic-gate */ 7427c478bd9Sstevel@tonic-gate rp = (int *)rights; 7437c478bd9Sstevel@tonic-gate for (i = 0; i < numfd; i++) { 7447c478bd9Sstevel@tonic-gate if ((fd = ufalloc(0)) == -1) 7457c478bd9Sstevel@tonic-gate goto cleanup; 7467c478bd9Sstevel@tonic-gate /* 7477c478bd9Sstevel@tonic-gate * We need pointer size alignment for fd_fds. On a LP64 7487c478bd9Sstevel@tonic-gate * kernel, the required alignment is 8 bytes while 7497c478bd9Sstevel@tonic-gate * the option headers and values are only 4 bytes 7507c478bd9Sstevel@tonic-gate * aligned. So its safer to do a bcopy compared to 7517c478bd9Sstevel@tonic-gate * assigning fdbuf->fd_fds[i] to fp. 7527c478bd9Sstevel@tonic-gate */ 7537c478bd9Sstevel@tonic-gate bcopy((char *)&fdbuf->fd_fds[i], (char *)&fp, sizeof (fp)); 7547c478bd9Sstevel@tonic-gate mutex_enter(&fp->f_tlock); 7557c478bd9Sstevel@tonic-gate fp->f_count++; 7567c478bd9Sstevel@tonic-gate mutex_exit(&fp->f_tlock); 7577c478bd9Sstevel@tonic-gate setf(fd, fp); 7587c478bd9Sstevel@tonic-gate *rp++ = fd; 7597c478bd9Sstevel@tonic-gate if (audit_active) 7607c478bd9Sstevel@tonic-gate audit_fdrecv(fd, fp); 7617c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_extract: [%d] = %d, %p refcnt %d\n", 762903a11ebSrh87107 i, fd, (void *)fp, fp->f_count)); 7637c478bd9Sstevel@tonic-gate } 7647c478bd9Sstevel@tonic-gate return (0); 7657c478bd9Sstevel@tonic-gate 7667c478bd9Sstevel@tonic-gate cleanup: 7677c478bd9Sstevel@tonic-gate /* 7687c478bd9Sstevel@tonic-gate * Undo whatever partial work the loop above has done. 7697c478bd9Sstevel@tonic-gate */ 7707c478bd9Sstevel@tonic-gate { 7717c478bd9Sstevel@tonic-gate int j; 7727c478bd9Sstevel@tonic-gate 7737c478bd9Sstevel@tonic-gate rp = (int *)rights; 7747c478bd9Sstevel@tonic-gate for (j = 0; j < i; j++) { 7757c478bd9Sstevel@tonic-gate dprint(0, 7767c478bd9Sstevel@tonic-gate ("fdbuf_extract: cleanup[%d] = %d\n", j, *rp)); 7777c478bd9Sstevel@tonic-gate (void) closeandsetf(*rp++, NULL); 7787c478bd9Sstevel@tonic-gate } 7797c478bd9Sstevel@tonic-gate } 7807c478bd9Sstevel@tonic-gate 7817c478bd9Sstevel@tonic-gate return (EMFILE); 7827c478bd9Sstevel@tonic-gate } 7837c478bd9Sstevel@tonic-gate 7847c478bd9Sstevel@tonic-gate /* 7857c478bd9Sstevel@tonic-gate * Insert file descriptors into an fdbuf. 7867c478bd9Sstevel@tonic-gate * Returns a kmem_alloc'ed fdbuf. The fdbuf should be freed 7877c478bd9Sstevel@tonic-gate * by calling fdbuf_free(). 7887c478bd9Sstevel@tonic-gate */ 7897c478bd9Sstevel@tonic-gate int 7907c478bd9Sstevel@tonic-gate fdbuf_create(void *rights, int rightslen, struct fdbuf **fdbufp) 7917c478bd9Sstevel@tonic-gate { 7927c478bd9Sstevel@tonic-gate int numfd, i; 7937c478bd9Sstevel@tonic-gate int *fds; 7947c478bd9Sstevel@tonic-gate struct file *fp; 7957c478bd9Sstevel@tonic-gate struct fdbuf *fdbuf; 7967c478bd9Sstevel@tonic-gate int fdbufsize; 7977c478bd9Sstevel@tonic-gate 7987c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_create: len %d\n", rightslen)); 7997c478bd9Sstevel@tonic-gate 8007c478bd9Sstevel@tonic-gate numfd = rightslen / (int)sizeof (int); 8017c478bd9Sstevel@tonic-gate 8027c478bd9Sstevel@tonic-gate fdbufsize = (int)FDBUF_HDRSIZE + (numfd * (int)sizeof (struct file *)); 8037c478bd9Sstevel@tonic-gate fdbuf = kmem_alloc(fdbufsize, KM_SLEEP); 8047c478bd9Sstevel@tonic-gate fdbuf->fd_size = fdbufsize; 8057c478bd9Sstevel@tonic-gate fdbuf->fd_numfd = 0; 8067c478bd9Sstevel@tonic-gate fdbuf->fd_ebuf = NULL; 8077c478bd9Sstevel@tonic-gate fdbuf->fd_ebuflen = 0; 8087c478bd9Sstevel@tonic-gate fds = (int *)rights; 8097c478bd9Sstevel@tonic-gate for (i = 0; i < numfd; i++) { 8107c478bd9Sstevel@tonic-gate if ((fp = getf(fds[i])) == NULL) { 8117c478bd9Sstevel@tonic-gate fdbuf_free(fdbuf); 8127c478bd9Sstevel@tonic-gate return (EBADF); 8137c478bd9Sstevel@tonic-gate } 8147c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_create: [%d] = %d, %p refcnt %d\n", 815903a11ebSrh87107 i, fds[i], (void *)fp, fp->f_count)); 8167c478bd9Sstevel@tonic-gate mutex_enter(&fp->f_tlock); 8177c478bd9Sstevel@tonic-gate fp->f_count++; 8187c478bd9Sstevel@tonic-gate mutex_exit(&fp->f_tlock); 8197c478bd9Sstevel@tonic-gate /* 8207c478bd9Sstevel@tonic-gate * The maximum alignment for fdbuf (or any option header 8217c478bd9Sstevel@tonic-gate * and its value) it 4 bytes. On a LP64 kernel, the alignment 8227c478bd9Sstevel@tonic-gate * is not sufficient for pointers (fd_fds in this case). Since 8237c478bd9Sstevel@tonic-gate * we just did a kmem_alloc (we get a double word alignment), 8247c478bd9Sstevel@tonic-gate * we don't need to do anything on the send side (we loose 8257c478bd9Sstevel@tonic-gate * the double word alignment because fdbuf goes after an 8267c478bd9Sstevel@tonic-gate * option header (eg T_unitdata_req) which is only 4 byte 8277c478bd9Sstevel@tonic-gate * aligned). We take care of this when we extract the file 8287c478bd9Sstevel@tonic-gate * descriptor in fdbuf_extract or fdbuf_free. 8297c478bd9Sstevel@tonic-gate */ 8307c478bd9Sstevel@tonic-gate fdbuf->fd_fds[i] = fp; 8317c478bd9Sstevel@tonic-gate fdbuf->fd_numfd++; 8327c478bd9Sstevel@tonic-gate releasef(fds[i]); 8337c478bd9Sstevel@tonic-gate if (audit_active) 8347c478bd9Sstevel@tonic-gate audit_fdsend(fds[i], fp, 0); 8357c478bd9Sstevel@tonic-gate } 8367c478bd9Sstevel@tonic-gate *fdbufp = fdbuf; 8377c478bd9Sstevel@tonic-gate return (0); 8387c478bd9Sstevel@tonic-gate } 8397c478bd9Sstevel@tonic-gate 8407c478bd9Sstevel@tonic-gate static int 8417c478bd9Sstevel@tonic-gate fdbuf_optlen(int rightslen) 8427c478bd9Sstevel@tonic-gate { 8437c478bd9Sstevel@tonic-gate int numfd; 8447c478bd9Sstevel@tonic-gate 8457c478bd9Sstevel@tonic-gate numfd = rightslen / (int)sizeof (int); 8467c478bd9Sstevel@tonic-gate 8477c478bd9Sstevel@tonic-gate return ((int)FDBUF_HDRSIZE + (numfd * (int)sizeof (struct file *))); 8487c478bd9Sstevel@tonic-gate } 8497c478bd9Sstevel@tonic-gate 8507c478bd9Sstevel@tonic-gate static t_uscalar_t 8517c478bd9Sstevel@tonic-gate fdbuf_cmsglen(int fdbuflen) 8527c478bd9Sstevel@tonic-gate { 8537c478bd9Sstevel@tonic-gate return (t_uscalar_t)((fdbuflen - FDBUF_HDRSIZE) / 8547c478bd9Sstevel@tonic-gate (int)sizeof (struct file *) * (int)sizeof (int)); 8557c478bd9Sstevel@tonic-gate } 8567c478bd9Sstevel@tonic-gate 8577c478bd9Sstevel@tonic-gate 8587c478bd9Sstevel@tonic-gate /* 8597c478bd9Sstevel@tonic-gate * Return non-zero if the mblk and fdbuf are consistent. 8607c478bd9Sstevel@tonic-gate */ 8617c478bd9Sstevel@tonic-gate static int 8627c478bd9Sstevel@tonic-gate fdbuf_verify(mblk_t *mp, struct fdbuf *fdbuf, int fdbuflen) 8637c478bd9Sstevel@tonic-gate { 8647c478bd9Sstevel@tonic-gate if (fdbuflen >= FDBUF_HDRSIZE && 8657c478bd9Sstevel@tonic-gate fdbuflen == fdbuf->fd_size) { 8667c478bd9Sstevel@tonic-gate frtn_t *frp = mp->b_datap->db_frtnp; 8677c478bd9Sstevel@tonic-gate /* 8687c478bd9Sstevel@tonic-gate * Check that the SO_FILEP portion of the 8697c478bd9Sstevel@tonic-gate * message has not been modified by 8707c478bd9Sstevel@tonic-gate * the loopback transport. The sending sockfs generates 8717c478bd9Sstevel@tonic-gate * a message that is esballoc'ed with the free function 8727c478bd9Sstevel@tonic-gate * being fdbuf_free() and where free_arg contains the 8737c478bd9Sstevel@tonic-gate * identical information as the SO_FILEP content. 8747c478bd9Sstevel@tonic-gate * 8757c478bd9Sstevel@tonic-gate * If any of these constraints are not satisfied we 8767c478bd9Sstevel@tonic-gate * silently ignore the option. 8777c478bd9Sstevel@tonic-gate */ 8787c478bd9Sstevel@tonic-gate ASSERT(mp); 8797c478bd9Sstevel@tonic-gate if (frp != NULL && 8807c478bd9Sstevel@tonic-gate frp->free_func == fdbuf_free && 8817c478bd9Sstevel@tonic-gate frp->free_arg != NULL && 8827c478bd9Sstevel@tonic-gate bcmp(frp->free_arg, fdbuf, fdbuflen) == 0) { 8837c478bd9Sstevel@tonic-gate dprint(1, ("fdbuf_verify: fdbuf %p len %d\n", 884903a11ebSrh87107 (void *)fdbuf, fdbuflen)); 8857c478bd9Sstevel@tonic-gate return (1); 8867c478bd9Sstevel@tonic-gate } else { 8872caf0dcdSrshoaib zcmn_err(getzoneid(), CE_WARN, 8887c478bd9Sstevel@tonic-gate "sockfs: mismatched fdbuf content (%p)", 8897c478bd9Sstevel@tonic-gate (void *)mp); 8907c478bd9Sstevel@tonic-gate return (0); 8917c478bd9Sstevel@tonic-gate } 8927c478bd9Sstevel@tonic-gate } else { 8932caf0dcdSrshoaib zcmn_err(getzoneid(), CE_WARN, 8947c478bd9Sstevel@tonic-gate "sockfs: mismatched fdbuf len %d, %d\n", 8957c478bd9Sstevel@tonic-gate fdbuflen, fdbuf->fd_size); 8967c478bd9Sstevel@tonic-gate return (0); 8977c478bd9Sstevel@tonic-gate } 8987c478bd9Sstevel@tonic-gate } 8997c478bd9Sstevel@tonic-gate 9007c478bd9Sstevel@tonic-gate /* 9017c478bd9Sstevel@tonic-gate * When the file descriptors returned by sorecvmsg can not be passed 9027c478bd9Sstevel@tonic-gate * to the application this routine will cleanup the references on 9037c478bd9Sstevel@tonic-gate * the files. Start at startoff bytes into the buffer. 9047c478bd9Sstevel@tonic-gate */ 9057c478bd9Sstevel@tonic-gate static void 9067c478bd9Sstevel@tonic-gate close_fds(void *fdbuf, int fdbuflen, int startoff) 9077c478bd9Sstevel@tonic-gate { 9087c478bd9Sstevel@tonic-gate int *fds = (int *)fdbuf; 9097c478bd9Sstevel@tonic-gate int numfd = fdbuflen / (int)sizeof (int); 9107c478bd9Sstevel@tonic-gate int i; 9117c478bd9Sstevel@tonic-gate 9127c478bd9Sstevel@tonic-gate dprint(1, ("close_fds(%p, %d, %d)\n", fdbuf, fdbuflen, startoff)); 9137c478bd9Sstevel@tonic-gate 9147c478bd9Sstevel@tonic-gate for (i = 0; i < numfd; i++) { 9157c478bd9Sstevel@tonic-gate if (startoff < 0) 9167c478bd9Sstevel@tonic-gate startoff = 0; 9177c478bd9Sstevel@tonic-gate if (startoff < (int)sizeof (int)) { 9187c478bd9Sstevel@tonic-gate /* 9197c478bd9Sstevel@tonic-gate * This file descriptor is partially or fully after 9207c478bd9Sstevel@tonic-gate * the offset 9217c478bd9Sstevel@tonic-gate */ 9227c478bd9Sstevel@tonic-gate dprint(0, 9237c478bd9Sstevel@tonic-gate ("close_fds: cleanup[%d] = %d\n", i, fds[i])); 9247c478bd9Sstevel@tonic-gate (void) closeandsetf(fds[i], NULL); 9257c478bd9Sstevel@tonic-gate } 9267c478bd9Sstevel@tonic-gate startoff -= (int)sizeof (int); 9277c478bd9Sstevel@tonic-gate } 9287c478bd9Sstevel@tonic-gate } 9297c478bd9Sstevel@tonic-gate 9307c478bd9Sstevel@tonic-gate /* 9317c478bd9Sstevel@tonic-gate * Close all file descriptors contained in the control part starting at 9327c478bd9Sstevel@tonic-gate * the startoffset. 9337c478bd9Sstevel@tonic-gate */ 9347c478bd9Sstevel@tonic-gate void 9357c478bd9Sstevel@tonic-gate so_closefds(void *control, t_uscalar_t controllen, int oldflg, 9367c478bd9Sstevel@tonic-gate int startoff) 9377c478bd9Sstevel@tonic-gate { 9387c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 9397c478bd9Sstevel@tonic-gate 9407c478bd9Sstevel@tonic-gate if (control == NULL) 9417c478bd9Sstevel@tonic-gate return; 9427c478bd9Sstevel@tonic-gate 9437c478bd9Sstevel@tonic-gate if (oldflg) { 9447c478bd9Sstevel@tonic-gate close_fds(control, controllen, startoff); 9457c478bd9Sstevel@tonic-gate return; 9467c478bd9Sstevel@tonic-gate } 9477c478bd9Sstevel@tonic-gate /* Scan control part for file descriptors. */ 9487c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 9497c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 9507c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 9517c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 9527c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) { 9537c478bd9Sstevel@tonic-gate close_fds(CMSG_CONTENT(cmsg), 9547c478bd9Sstevel@tonic-gate (int)CMSG_CONTENTLEN(cmsg), 9557c478bd9Sstevel@tonic-gate startoff - (int)sizeof (struct cmsghdr)); 9567c478bd9Sstevel@tonic-gate } 9577c478bd9Sstevel@tonic-gate startoff -= cmsg->cmsg_len; 9587c478bd9Sstevel@tonic-gate } 9597c478bd9Sstevel@tonic-gate } 9607c478bd9Sstevel@tonic-gate 9617c478bd9Sstevel@tonic-gate /* 9627c478bd9Sstevel@tonic-gate * Returns a pointer/length for the file descriptors contained 9637c478bd9Sstevel@tonic-gate * in the control buffer. Returns with *fdlenp == -1 if there are no 9647c478bd9Sstevel@tonic-gate * file descriptor options present. This is different than there being 9657c478bd9Sstevel@tonic-gate * a zero-length file descriptor option. 9667c478bd9Sstevel@tonic-gate * Fail if there are multiple SCM_RIGHT cmsgs. 9677c478bd9Sstevel@tonic-gate */ 9687c478bd9Sstevel@tonic-gate int 9697c478bd9Sstevel@tonic-gate so_getfdopt(void *control, t_uscalar_t controllen, int oldflg, 9707c478bd9Sstevel@tonic-gate void **fdsp, int *fdlenp) 9717c478bd9Sstevel@tonic-gate { 9727c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 9737c478bd9Sstevel@tonic-gate void *fds; 9747c478bd9Sstevel@tonic-gate int fdlen; 9757c478bd9Sstevel@tonic-gate 9767c478bd9Sstevel@tonic-gate if (control == NULL) { 9777c478bd9Sstevel@tonic-gate *fdsp = NULL; 9787c478bd9Sstevel@tonic-gate *fdlenp = -1; 9797c478bd9Sstevel@tonic-gate return (0); 9807c478bd9Sstevel@tonic-gate } 9817c478bd9Sstevel@tonic-gate 9827c478bd9Sstevel@tonic-gate if (oldflg) { 9837c478bd9Sstevel@tonic-gate *fdsp = control; 9847c478bd9Sstevel@tonic-gate if (controllen == 0) 9857c478bd9Sstevel@tonic-gate *fdlenp = -1; 9867c478bd9Sstevel@tonic-gate else 9877c478bd9Sstevel@tonic-gate *fdlenp = controllen; 9887c478bd9Sstevel@tonic-gate dprint(1, ("so_getfdopt: old %d\n", *fdlenp)); 9897c478bd9Sstevel@tonic-gate return (0); 9907c478bd9Sstevel@tonic-gate } 9917c478bd9Sstevel@tonic-gate 9927c478bd9Sstevel@tonic-gate fds = NULL; 9937c478bd9Sstevel@tonic-gate fdlen = 0; 9947c478bd9Sstevel@tonic-gate 9957c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 9967c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 9977c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 9987c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 9997c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) { 10007c478bd9Sstevel@tonic-gate if (fds != NULL) 10017c478bd9Sstevel@tonic-gate return (EINVAL); 10027c478bd9Sstevel@tonic-gate fds = CMSG_CONTENT(cmsg); 10037c478bd9Sstevel@tonic-gate fdlen = (int)CMSG_CONTENTLEN(cmsg); 10041e0267ddSkrgopi dprint(1, ("so_getfdopt: new %lu\n", 10051e0267ddSkrgopi (size_t)CMSG_CONTENTLEN(cmsg))); 10067c478bd9Sstevel@tonic-gate } 10077c478bd9Sstevel@tonic-gate } 10087c478bd9Sstevel@tonic-gate if (fds == NULL) { 10097c478bd9Sstevel@tonic-gate dprint(1, ("so_getfdopt: NONE\n")); 10107c478bd9Sstevel@tonic-gate *fdlenp = -1; 10117c478bd9Sstevel@tonic-gate } else 10127c478bd9Sstevel@tonic-gate *fdlenp = fdlen; 10137c478bd9Sstevel@tonic-gate *fdsp = fds; 10147c478bd9Sstevel@tonic-gate return (0); 10157c478bd9Sstevel@tonic-gate } 10167c478bd9Sstevel@tonic-gate 10177c478bd9Sstevel@tonic-gate /* 10187c478bd9Sstevel@tonic-gate * Return the length of the options including any file descriptor options. 10197c478bd9Sstevel@tonic-gate */ 10207c478bd9Sstevel@tonic-gate t_uscalar_t 10217c478bd9Sstevel@tonic-gate so_optlen(void *control, t_uscalar_t controllen, int oldflg) 10227c478bd9Sstevel@tonic-gate { 10237c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 10247c478bd9Sstevel@tonic-gate t_uscalar_t optlen = 0; 10257c478bd9Sstevel@tonic-gate t_uscalar_t len; 10267c478bd9Sstevel@tonic-gate 10277c478bd9Sstevel@tonic-gate if (control == NULL) 10287c478bd9Sstevel@tonic-gate return (0); 10297c478bd9Sstevel@tonic-gate 10307c478bd9Sstevel@tonic-gate if (oldflg) 10317c478bd9Sstevel@tonic-gate return ((t_uscalar_t)(sizeof (struct T_opthdr) + 10327c478bd9Sstevel@tonic-gate fdbuf_optlen(controllen))); 10337c478bd9Sstevel@tonic-gate 10347c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 10357c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 10367c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 10377c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 10387c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) { 10397c478bd9Sstevel@tonic-gate len = fdbuf_optlen((int)CMSG_CONTENTLEN(cmsg)); 10407c478bd9Sstevel@tonic-gate } else { 10417c478bd9Sstevel@tonic-gate len = (t_uscalar_t)CMSG_CONTENTLEN(cmsg); 10427c478bd9Sstevel@tonic-gate } 10437c478bd9Sstevel@tonic-gate optlen += (t_uscalar_t)(_TPI_ALIGN_TOPT(len) + 10447c478bd9Sstevel@tonic-gate sizeof (struct T_opthdr)); 10457c478bd9Sstevel@tonic-gate } 10467c478bd9Sstevel@tonic-gate dprint(1, ("so_optlen: controllen %d, flg %d -> optlen %d\n", 10477c478bd9Sstevel@tonic-gate controllen, oldflg, optlen)); 10487c478bd9Sstevel@tonic-gate return (optlen); 10497c478bd9Sstevel@tonic-gate } 10507c478bd9Sstevel@tonic-gate 10517c478bd9Sstevel@tonic-gate /* 10527c478bd9Sstevel@tonic-gate * Copy options from control to the mblk. Skip any file descriptor options. 10537c478bd9Sstevel@tonic-gate */ 10547c478bd9Sstevel@tonic-gate void 10557c478bd9Sstevel@tonic-gate so_cmsg2opt(void *control, t_uscalar_t controllen, int oldflg, mblk_t *mp) 10567c478bd9Sstevel@tonic-gate { 10577c478bd9Sstevel@tonic-gate struct T_opthdr toh; 10587c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 10597c478bd9Sstevel@tonic-gate 10607c478bd9Sstevel@tonic-gate if (control == NULL) 10617c478bd9Sstevel@tonic-gate return; 10627c478bd9Sstevel@tonic-gate 10637c478bd9Sstevel@tonic-gate if (oldflg) { 10647c478bd9Sstevel@tonic-gate /* No real options - caller has handled file descriptors */ 10657c478bd9Sstevel@tonic-gate return; 10667c478bd9Sstevel@tonic-gate } 10677c478bd9Sstevel@tonic-gate for (cmsg = (struct cmsghdr *)control; 10687c478bd9Sstevel@tonic-gate CMSG_VALID(cmsg, control, (uintptr_t)control + controllen); 10697c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg)) { 10707c478bd9Sstevel@tonic-gate /* 10717c478bd9Sstevel@tonic-gate * Note: The caller handles file descriptors prior 10727c478bd9Sstevel@tonic-gate * to calling this function. 10737c478bd9Sstevel@tonic-gate */ 10747c478bd9Sstevel@tonic-gate t_uscalar_t len; 10757c478bd9Sstevel@tonic-gate 10767c478bd9Sstevel@tonic-gate if (cmsg->cmsg_level == SOL_SOCKET && 10777c478bd9Sstevel@tonic-gate cmsg->cmsg_type == SCM_RIGHTS) 10787c478bd9Sstevel@tonic-gate continue; 10797c478bd9Sstevel@tonic-gate 10807c478bd9Sstevel@tonic-gate len = (t_uscalar_t)CMSG_CONTENTLEN(cmsg); 10817c478bd9Sstevel@tonic-gate toh.level = cmsg->cmsg_level; 10827c478bd9Sstevel@tonic-gate toh.name = cmsg->cmsg_type; 10837c478bd9Sstevel@tonic-gate toh.len = len + (t_uscalar_t)sizeof (struct T_opthdr); 10847c478bd9Sstevel@tonic-gate toh.status = 0; 10857c478bd9Sstevel@tonic-gate 10867c478bd9Sstevel@tonic-gate soappendmsg(mp, &toh, sizeof (toh)); 10877c478bd9Sstevel@tonic-gate soappendmsg(mp, CMSG_CONTENT(cmsg), len); 10887c478bd9Sstevel@tonic-gate mp->b_wptr += _TPI_ALIGN_TOPT(len) - len; 10897c478bd9Sstevel@tonic-gate ASSERT(mp->b_wptr <= mp->b_datap->db_lim); 10907c478bd9Sstevel@tonic-gate } 10917c478bd9Sstevel@tonic-gate } 10927c478bd9Sstevel@tonic-gate 10937c478bd9Sstevel@tonic-gate /* 10947c478bd9Sstevel@tonic-gate * Return the length of the control message derived from the options. 10957c478bd9Sstevel@tonic-gate * Exclude SO_SRCADDR and SO_UNIX_CLOSE options. Include SO_FILEP. 10967c478bd9Sstevel@tonic-gate * When oldflg is set only include SO_FILEP. 10970d204002Sgt145670 * so_opt2cmsg and so_cmsglen are inter-related since so_cmsglen 10980d204002Sgt145670 * allocates the space that so_opt2cmsg fills. If one changes, the other should 10990d204002Sgt145670 * also be checked for any possible impacts. 11007c478bd9Sstevel@tonic-gate */ 11017c478bd9Sstevel@tonic-gate t_uscalar_t 11027c478bd9Sstevel@tonic-gate so_cmsglen(mblk_t *mp, void *opt, t_uscalar_t optlen, int oldflg) 11037c478bd9Sstevel@tonic-gate { 11047c478bd9Sstevel@tonic-gate t_uscalar_t cmsglen = 0; 11057c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 11067c478bd9Sstevel@tonic-gate t_uscalar_t len; 11077c478bd9Sstevel@tonic-gate t_uscalar_t last_roundup = 0; 11087c478bd9Sstevel@tonic-gate 11097c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 11107c478bd9Sstevel@tonic-gate 11117c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 11127c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 11137c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 11147c478bd9Sstevel@tonic-gate dprint(1, ("so_cmsglen: level 0x%x, name %d, len %d\n", 11157c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 11167c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 11177c478bd9Sstevel@tonic-gate (tohp->name == SO_SRCADDR || 11187c478bd9Sstevel@tonic-gate tohp->name == SO_UNIX_CLOSE)) { 11197c478bd9Sstevel@tonic-gate continue; 11207c478bd9Sstevel@tonic-gate } 11217c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && tohp->name == SO_FILEP) { 11227c478bd9Sstevel@tonic-gate struct fdbuf *fdbuf; 11237c478bd9Sstevel@tonic-gate int fdbuflen; 11247c478bd9Sstevel@tonic-gate 11257c478bd9Sstevel@tonic-gate fdbuf = (struct fdbuf *)_TPI_TOPT_DATA(tohp); 11267c478bd9Sstevel@tonic-gate fdbuflen = (int)_TPI_TOPT_DATALEN(tohp); 11277c478bd9Sstevel@tonic-gate 11287c478bd9Sstevel@tonic-gate if (!fdbuf_verify(mp, fdbuf, fdbuflen)) 11297c478bd9Sstevel@tonic-gate continue; 11307c478bd9Sstevel@tonic-gate if (oldflg) { 11317c478bd9Sstevel@tonic-gate cmsglen += fdbuf_cmsglen(fdbuflen); 11327c478bd9Sstevel@tonic-gate continue; 11337c478bd9Sstevel@tonic-gate } 11347c478bd9Sstevel@tonic-gate len = fdbuf_cmsglen(fdbuflen); 11350d204002Sgt145670 } else if (tohp->level == SOL_SOCKET && 11360d204002Sgt145670 tohp->name == SCM_TIMESTAMP) { 11370d204002Sgt145670 if (oldflg) 11380d204002Sgt145670 continue; 11390d204002Sgt145670 11400d204002Sgt145670 if (get_udatamodel() == DATAMODEL_NATIVE) { 11410d204002Sgt145670 len = sizeof (struct timeval); 11420d204002Sgt145670 } else { 11430d204002Sgt145670 len = sizeof (struct timeval32); 11440d204002Sgt145670 } 11457c478bd9Sstevel@tonic-gate } else { 11467c478bd9Sstevel@tonic-gate if (oldflg) 11477c478bd9Sstevel@tonic-gate continue; 11487c478bd9Sstevel@tonic-gate len = (t_uscalar_t)_TPI_TOPT_DATALEN(tohp); 11497c478bd9Sstevel@tonic-gate } 11507c478bd9Sstevel@tonic-gate /* 11510d204002Sgt145670 * Exclude roundup for last option to not set 11527c478bd9Sstevel@tonic-gate * MSG_CTRUNC when the cmsg fits but the padding doesn't fit. 11537c478bd9Sstevel@tonic-gate */ 11547c478bd9Sstevel@tonic-gate last_roundup = (t_uscalar_t) 11557c478bd9Sstevel@tonic-gate (ROUNDUP_cmsglen(len + (int)sizeof (struct cmsghdr)) - 11567c478bd9Sstevel@tonic-gate (len + (int)sizeof (struct cmsghdr))); 11577c478bd9Sstevel@tonic-gate cmsglen += (t_uscalar_t)(len + (int)sizeof (struct cmsghdr)) + 11587c478bd9Sstevel@tonic-gate last_roundup; 11597c478bd9Sstevel@tonic-gate } 11607c478bd9Sstevel@tonic-gate cmsglen -= last_roundup; 11617c478bd9Sstevel@tonic-gate dprint(1, ("so_cmsglen: optlen %d, flg %d -> cmsglen %d\n", 11627c478bd9Sstevel@tonic-gate optlen, oldflg, cmsglen)); 11637c478bd9Sstevel@tonic-gate return (cmsglen); 11647c478bd9Sstevel@tonic-gate } 11657c478bd9Sstevel@tonic-gate 11667c478bd9Sstevel@tonic-gate /* 11677c478bd9Sstevel@tonic-gate * Copy options from options to the control. Convert SO_FILEP to 11687c478bd9Sstevel@tonic-gate * file descriptors. 11697c478bd9Sstevel@tonic-gate * Returns errno or zero. 11700d204002Sgt145670 * so_opt2cmsg and so_cmsglen are inter-related since so_cmsglen 11710d204002Sgt145670 * allocates the space that so_opt2cmsg fills. If one changes, the other should 11720d204002Sgt145670 * also be checked for any possible impacts. 11737c478bd9Sstevel@tonic-gate */ 11747c478bd9Sstevel@tonic-gate int 11757c478bd9Sstevel@tonic-gate so_opt2cmsg(mblk_t *mp, void *opt, t_uscalar_t optlen, int oldflg, 11767c478bd9Sstevel@tonic-gate void *control, t_uscalar_t controllen) 11777c478bd9Sstevel@tonic-gate { 11787c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 11797c478bd9Sstevel@tonic-gate struct cmsghdr *cmsg; 11807c478bd9Sstevel@tonic-gate struct fdbuf *fdbuf; 11817c478bd9Sstevel@tonic-gate int fdbuflen; 11827c478bd9Sstevel@tonic-gate int error; 11830d204002Sgt145670 #if defined(DEBUG) || defined(__lint) 11840d204002Sgt145670 struct cmsghdr *cend = (struct cmsghdr *) 11850d204002Sgt145670 (((uint8_t *)control) + ROUNDUP_cmsglen(controllen)); 11860d204002Sgt145670 #endif 11877c478bd9Sstevel@tonic-gate cmsg = (struct cmsghdr *)control; 11887c478bd9Sstevel@tonic-gate 11897c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 11907c478bd9Sstevel@tonic-gate 11917c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 11927c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 11937c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 11947c478bd9Sstevel@tonic-gate dprint(1, ("so_opt2cmsg: level 0x%x, name %d, len %d\n", 11957c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 11967c478bd9Sstevel@tonic-gate 11977c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 11987c478bd9Sstevel@tonic-gate (tohp->name == SO_SRCADDR || 11997c478bd9Sstevel@tonic-gate tohp->name == SO_UNIX_CLOSE)) { 12007c478bd9Sstevel@tonic-gate continue; 12017c478bd9Sstevel@tonic-gate } 12027c478bd9Sstevel@tonic-gate ASSERT((uintptr_t)cmsg <= (uintptr_t)control + controllen); 12037c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && tohp->name == SO_FILEP) { 12047c478bd9Sstevel@tonic-gate fdbuf = (struct fdbuf *)_TPI_TOPT_DATA(tohp); 12057c478bd9Sstevel@tonic-gate fdbuflen = (int)_TPI_TOPT_DATALEN(tohp); 12067c478bd9Sstevel@tonic-gate 12077c478bd9Sstevel@tonic-gate if (!fdbuf_verify(mp, fdbuf, fdbuflen)) 12087c478bd9Sstevel@tonic-gate return (EPROTO); 12097c478bd9Sstevel@tonic-gate if (oldflg) { 12107c478bd9Sstevel@tonic-gate error = fdbuf_extract(fdbuf, control, 12117c478bd9Sstevel@tonic-gate (int)controllen); 12127c478bd9Sstevel@tonic-gate if (error != 0) 12137c478bd9Sstevel@tonic-gate return (error); 12147c478bd9Sstevel@tonic-gate continue; 12157c478bd9Sstevel@tonic-gate } else { 12167c478bd9Sstevel@tonic-gate int fdlen; 12177c478bd9Sstevel@tonic-gate 12187c478bd9Sstevel@tonic-gate fdlen = (int)fdbuf_cmsglen( 12197c478bd9Sstevel@tonic-gate (int)_TPI_TOPT_DATALEN(tohp)); 12207c478bd9Sstevel@tonic-gate 12217c478bd9Sstevel@tonic-gate cmsg->cmsg_level = tohp->level; 12227c478bd9Sstevel@tonic-gate cmsg->cmsg_type = SCM_RIGHTS; 12237c478bd9Sstevel@tonic-gate cmsg->cmsg_len = (socklen_t)(fdlen + 12247c478bd9Sstevel@tonic-gate sizeof (struct cmsghdr)); 12257c478bd9Sstevel@tonic-gate 12267c478bd9Sstevel@tonic-gate error = fdbuf_extract(fdbuf, 12277c478bd9Sstevel@tonic-gate CMSG_CONTENT(cmsg), fdlen); 12287c478bd9Sstevel@tonic-gate if (error != 0) 12297c478bd9Sstevel@tonic-gate return (error); 12307c478bd9Sstevel@tonic-gate } 1231e4f35dbaSgt145670 } else if (tohp->level == SOL_SOCKET && 1232e4f35dbaSgt145670 tohp->name == SCM_TIMESTAMP) { 1233e4f35dbaSgt145670 timestruc_t *timestamp; 1234e4f35dbaSgt145670 1235e4f35dbaSgt145670 if (oldflg) 1236e4f35dbaSgt145670 continue; 1237e4f35dbaSgt145670 1238e4f35dbaSgt145670 cmsg->cmsg_level = tohp->level; 1239e4f35dbaSgt145670 cmsg->cmsg_type = tohp->name; 1240e4f35dbaSgt145670 1241e4f35dbaSgt145670 timestamp = 1242e4f35dbaSgt145670 (timestruc_t *)P2ROUNDUP((intptr_t)&tohp[1], 1243e4f35dbaSgt145670 sizeof (intptr_t)); 1244e4f35dbaSgt145670 1245e4f35dbaSgt145670 if (get_udatamodel() == DATAMODEL_NATIVE) { 12460d204002Sgt145670 struct timeval tv; 1247e4f35dbaSgt145670 1248e4f35dbaSgt145670 cmsg->cmsg_len = sizeof (struct timeval) + 1249e4f35dbaSgt145670 sizeof (struct cmsghdr); 12500d204002Sgt145670 tv.tv_sec = timestamp->tv_sec; 12510d204002Sgt145670 tv.tv_usec = timestamp->tv_nsec / 12520d204002Sgt145670 (NANOSEC / MICROSEC); 12530d204002Sgt145670 /* 12540d204002Sgt145670 * on LP64 systems, the struct timeval in 12550d204002Sgt145670 * the destination will not be 8-byte aligned, 12560d204002Sgt145670 * so use bcopy to avoid alignment trouble 12570d204002Sgt145670 */ 12580d204002Sgt145670 bcopy(&tv, CMSG_CONTENT(cmsg), sizeof (tv)); 1259e4f35dbaSgt145670 } else { 1260e4f35dbaSgt145670 struct timeval32 *time32; 1261e4f35dbaSgt145670 1262e4f35dbaSgt145670 cmsg->cmsg_len = sizeof (struct timeval32) + 1263e4f35dbaSgt145670 sizeof (struct cmsghdr); 1264e4f35dbaSgt145670 time32 = (struct timeval32 *)CMSG_CONTENT(cmsg); 1265e4f35dbaSgt145670 time32->tv_sec = (time32_t)timestamp->tv_sec; 1266e4f35dbaSgt145670 time32->tv_usec = 1267e4f35dbaSgt145670 (int32_t)(timestamp->tv_nsec / 1268e4f35dbaSgt145670 (NANOSEC / MICROSEC)); 1269e4f35dbaSgt145670 } 1270e4f35dbaSgt145670 12717c478bd9Sstevel@tonic-gate } else { 12727c478bd9Sstevel@tonic-gate if (oldflg) 12737c478bd9Sstevel@tonic-gate continue; 12747c478bd9Sstevel@tonic-gate 12757c478bd9Sstevel@tonic-gate cmsg->cmsg_level = tohp->level; 12767c478bd9Sstevel@tonic-gate cmsg->cmsg_type = tohp->name; 12777c478bd9Sstevel@tonic-gate cmsg->cmsg_len = (socklen_t)(_TPI_TOPT_DATALEN(tohp) + 12787c478bd9Sstevel@tonic-gate sizeof (struct cmsghdr)); 12797c478bd9Sstevel@tonic-gate 12807c478bd9Sstevel@tonic-gate /* copy content to control data part */ 12817c478bd9Sstevel@tonic-gate bcopy(&tohp[1], CMSG_CONTENT(cmsg), 12827c478bd9Sstevel@tonic-gate CMSG_CONTENTLEN(cmsg)); 12837c478bd9Sstevel@tonic-gate } 12847c478bd9Sstevel@tonic-gate /* move to next CMSG structure! */ 12857c478bd9Sstevel@tonic-gate cmsg = CMSG_NEXT(cmsg); 12867c478bd9Sstevel@tonic-gate } 12870d204002Sgt145670 dprint(1, ("so_opt2cmsg: buf %p len %d; cend %p; final cmsg %p\n", 1288903a11ebSrh87107 control, controllen, (void *)cend, (void *)cmsg)); 12890d204002Sgt145670 ASSERT(cmsg <= cend); 12907c478bd9Sstevel@tonic-gate return (0); 12917c478bd9Sstevel@tonic-gate } 12927c478bd9Sstevel@tonic-gate 12937c478bd9Sstevel@tonic-gate /* 12947c478bd9Sstevel@tonic-gate * Extract the SO_SRCADDR option value if present. 12957c478bd9Sstevel@tonic-gate */ 12967c478bd9Sstevel@tonic-gate void 12977c478bd9Sstevel@tonic-gate so_getopt_srcaddr(void *opt, t_uscalar_t optlen, void **srcp, 12987c478bd9Sstevel@tonic-gate t_uscalar_t *srclenp) 12997c478bd9Sstevel@tonic-gate { 13007c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 13017c478bd9Sstevel@tonic-gate 13027c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 13037c478bd9Sstevel@tonic-gate 13047c478bd9Sstevel@tonic-gate ASSERT(srcp != NULL && srclenp != NULL); 13057c478bd9Sstevel@tonic-gate *srcp = NULL; 13067c478bd9Sstevel@tonic-gate *srclenp = 0; 13077c478bd9Sstevel@tonic-gate 13087c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 13097c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 13107c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 13117c478bd9Sstevel@tonic-gate dprint(1, ("so_getopt_srcaddr: level 0x%x, name %d, len %d\n", 13127c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 13137c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 13147c478bd9Sstevel@tonic-gate tohp->name == SO_SRCADDR) { 13157c478bd9Sstevel@tonic-gate *srcp = _TPI_TOPT_DATA(tohp); 13167c478bd9Sstevel@tonic-gate *srclenp = (t_uscalar_t)_TPI_TOPT_DATALEN(tohp); 13177c478bd9Sstevel@tonic-gate } 13187c478bd9Sstevel@tonic-gate } 13197c478bd9Sstevel@tonic-gate } 13207c478bd9Sstevel@tonic-gate 13217c478bd9Sstevel@tonic-gate /* 13227c478bd9Sstevel@tonic-gate * Verify if the SO_UNIX_CLOSE option is present. 13237c478bd9Sstevel@tonic-gate */ 13247c478bd9Sstevel@tonic-gate int 13257c478bd9Sstevel@tonic-gate so_getopt_unix_close(void *opt, t_uscalar_t optlen) 13267c478bd9Sstevel@tonic-gate { 13277c478bd9Sstevel@tonic-gate struct T_opthdr *tohp; 13287c478bd9Sstevel@tonic-gate 13297c478bd9Sstevel@tonic-gate ASSERT(__TPI_TOPT_ISALIGNED(opt)); 13307c478bd9Sstevel@tonic-gate 13317c478bd9Sstevel@tonic-gate for (tohp = (struct T_opthdr *)opt; 13327c478bd9Sstevel@tonic-gate tohp && _TPI_TOPT_VALID(tohp, opt, (uintptr_t)opt + optlen); 13337c478bd9Sstevel@tonic-gate tohp = _TPI_TOPT_NEXTHDR(opt, optlen, tohp)) { 13347c478bd9Sstevel@tonic-gate dprint(1, 13357c478bd9Sstevel@tonic-gate ("so_getopt_unix_close: level 0x%x, name %d, len %d\n", 13367c478bd9Sstevel@tonic-gate tohp->level, tohp->name, tohp->len)); 13377c478bd9Sstevel@tonic-gate if (tohp->level == SOL_SOCKET && 13387c478bd9Sstevel@tonic-gate tohp->name == SO_UNIX_CLOSE) 13397c478bd9Sstevel@tonic-gate return (1); 13407c478bd9Sstevel@tonic-gate } 13417c478bd9Sstevel@tonic-gate return (0); 13427c478bd9Sstevel@tonic-gate } 13437c478bd9Sstevel@tonic-gate 13447c478bd9Sstevel@tonic-gate /* 13457c478bd9Sstevel@tonic-gate * Allocate an M_PROTO message. 13467c478bd9Sstevel@tonic-gate * 13477c478bd9Sstevel@tonic-gate * If allocation fails the behavior depends on sleepflg: 13487c478bd9Sstevel@tonic-gate * _ALLOC_NOSLEEP fail immediately 13497c478bd9Sstevel@tonic-gate * _ALLOC_INTR sleep for memory until a signal is caught 13507c478bd9Sstevel@tonic-gate * _ALLOC_SLEEP sleep forever. Don't return NULL. 13517c478bd9Sstevel@tonic-gate */ 13527c478bd9Sstevel@tonic-gate mblk_t * 1353de8c4a14SErik Nordmark soallocproto(size_t size, int sleepflg, cred_t *cr) 13547c478bd9Sstevel@tonic-gate { 13557c478bd9Sstevel@tonic-gate mblk_t *mp; 13567c478bd9Sstevel@tonic-gate 13577c478bd9Sstevel@tonic-gate /* Round up size for reuse */ 13587c478bd9Sstevel@tonic-gate size = MAX(size, 64); 1359de8c4a14SErik Nordmark if (cr != NULL) 1360de8c4a14SErik Nordmark mp = allocb_cred(size, cr, curproc->p_pid); 1361de8c4a14SErik Nordmark else 13627c478bd9Sstevel@tonic-gate mp = allocb(size, BPRI_MED); 1363de8c4a14SErik Nordmark 13647c478bd9Sstevel@tonic-gate if (mp == NULL) { 13657c478bd9Sstevel@tonic-gate int error; /* Dummy - error not returned to caller */ 13667c478bd9Sstevel@tonic-gate 13677c478bd9Sstevel@tonic-gate switch (sleepflg) { 13687c478bd9Sstevel@tonic-gate case _ALLOC_SLEEP: 1369de8c4a14SErik Nordmark if (cr != NULL) { 1370de8c4a14SErik Nordmark mp = allocb_cred_wait(size, STR_NOSIG, &error, 1371de8c4a14SErik Nordmark cr, curproc->p_pid); 1372de8c4a14SErik Nordmark } else { 1373de8c4a14SErik Nordmark mp = allocb_wait(size, BPRI_MED, STR_NOSIG, 1374de8c4a14SErik Nordmark &error); 1375de8c4a14SErik Nordmark } 13767c478bd9Sstevel@tonic-gate ASSERT(mp); 13777c478bd9Sstevel@tonic-gate break; 13787c478bd9Sstevel@tonic-gate case _ALLOC_INTR: 1379de8c4a14SErik Nordmark if (cr != NULL) { 1380de8c4a14SErik Nordmark mp = allocb_cred_wait(size, 0, &error, cr, 1381de8c4a14SErik Nordmark curproc->p_pid); 1382de8c4a14SErik Nordmark } else { 13837c478bd9Sstevel@tonic-gate mp = allocb_wait(size, BPRI_MED, 0, &error); 1384de8c4a14SErik Nordmark } 13857c478bd9Sstevel@tonic-gate if (mp == NULL) { 13867c478bd9Sstevel@tonic-gate /* Caught signal while sleeping for memory */ 13877c478bd9Sstevel@tonic-gate eprintline(ENOBUFS); 13887c478bd9Sstevel@tonic-gate return (NULL); 13897c478bd9Sstevel@tonic-gate } 13907c478bd9Sstevel@tonic-gate break; 13917c478bd9Sstevel@tonic-gate case _ALLOC_NOSLEEP: 13927c478bd9Sstevel@tonic-gate default: 13937c478bd9Sstevel@tonic-gate eprintline(ENOBUFS); 13947c478bd9Sstevel@tonic-gate return (NULL); 13957c478bd9Sstevel@tonic-gate } 13967c478bd9Sstevel@tonic-gate } 13977c478bd9Sstevel@tonic-gate DB_TYPE(mp) = M_PROTO; 13987c478bd9Sstevel@tonic-gate return (mp); 13997c478bd9Sstevel@tonic-gate } 14007c478bd9Sstevel@tonic-gate 14017c478bd9Sstevel@tonic-gate /* 14027c478bd9Sstevel@tonic-gate * Allocate an M_PROTO message with a single component. 14037c478bd9Sstevel@tonic-gate * len is the length of buf. size is the amount to allocate. 14047c478bd9Sstevel@tonic-gate * 14057c478bd9Sstevel@tonic-gate * buf can be NULL with a non-zero len. 14067c478bd9Sstevel@tonic-gate * This results in a bzero'ed chunk being placed the message. 14077c478bd9Sstevel@tonic-gate */ 14087c478bd9Sstevel@tonic-gate mblk_t * 1409de8c4a14SErik Nordmark soallocproto1(const void *buf, ssize_t len, ssize_t size, int sleepflg, 1410de8c4a14SErik Nordmark cred_t *cr) 14117c478bd9Sstevel@tonic-gate { 14127c478bd9Sstevel@tonic-gate mblk_t *mp; 14137c478bd9Sstevel@tonic-gate 14147c478bd9Sstevel@tonic-gate if (size == 0) 14157c478bd9Sstevel@tonic-gate size = len; 14167c478bd9Sstevel@tonic-gate 14177c478bd9Sstevel@tonic-gate ASSERT(size >= len); 14187c478bd9Sstevel@tonic-gate /* Round up size for reuse */ 14197c478bd9Sstevel@tonic-gate size = MAX(size, 64); 1420de8c4a14SErik Nordmark mp = soallocproto(size, sleepflg, cr); 14217c478bd9Sstevel@tonic-gate if (mp == NULL) 14227c478bd9Sstevel@tonic-gate return (NULL); 14237c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 14247c478bd9Sstevel@tonic-gate if (len != 0) { 14257c478bd9Sstevel@tonic-gate if (buf != NULL) 14267c478bd9Sstevel@tonic-gate bcopy(buf, mp->b_wptr, len); 14277c478bd9Sstevel@tonic-gate else 14287c478bd9Sstevel@tonic-gate bzero(mp->b_wptr, len); 14297c478bd9Sstevel@tonic-gate mp->b_wptr += len; 14307c478bd9Sstevel@tonic-gate } 14317c478bd9Sstevel@tonic-gate return (mp); 14327c478bd9Sstevel@tonic-gate } 14337c478bd9Sstevel@tonic-gate 14347c478bd9Sstevel@tonic-gate /* 14357c478bd9Sstevel@tonic-gate * Append buf/len to mp. 14367c478bd9Sstevel@tonic-gate * The caller has to ensure that there is enough room in the mblk. 14377c478bd9Sstevel@tonic-gate * 14387c478bd9Sstevel@tonic-gate * buf can be NULL with a non-zero len. 14397c478bd9Sstevel@tonic-gate * This results in a bzero'ed chunk being placed the message. 14407c478bd9Sstevel@tonic-gate */ 14417c478bd9Sstevel@tonic-gate void 14427c478bd9Sstevel@tonic-gate soappendmsg(mblk_t *mp, const void *buf, ssize_t len) 14437c478bd9Sstevel@tonic-gate { 14447c478bd9Sstevel@tonic-gate ASSERT(mp); 14457c478bd9Sstevel@tonic-gate 14467c478bd9Sstevel@tonic-gate if (len != 0) { 14477c478bd9Sstevel@tonic-gate /* Assert for room left */ 14487c478bd9Sstevel@tonic-gate ASSERT(mp->b_datap->db_lim - mp->b_wptr >= len); 14497c478bd9Sstevel@tonic-gate if (buf != NULL) 14507c478bd9Sstevel@tonic-gate bcopy(buf, mp->b_wptr, len); 14517c478bd9Sstevel@tonic-gate else 14527c478bd9Sstevel@tonic-gate bzero(mp->b_wptr, len); 14537c478bd9Sstevel@tonic-gate } 14547c478bd9Sstevel@tonic-gate mp->b_wptr += len; 14557c478bd9Sstevel@tonic-gate } 14567c478bd9Sstevel@tonic-gate 14577c478bd9Sstevel@tonic-gate /* 14587c478bd9Sstevel@tonic-gate * Create a message using two kernel buffers. 14597c478bd9Sstevel@tonic-gate * If size is set that will determine the allocation size (e.g. for future 14607c478bd9Sstevel@tonic-gate * soappendmsg calls). If size is zero it is derived from the buffer 14617c478bd9Sstevel@tonic-gate * lengths. 14627c478bd9Sstevel@tonic-gate */ 14637c478bd9Sstevel@tonic-gate mblk_t * 14647c478bd9Sstevel@tonic-gate soallocproto2(const void *buf1, ssize_t len1, const void *buf2, ssize_t len2, 1465de8c4a14SErik Nordmark ssize_t size, int sleepflg, cred_t *cr) 14667c478bd9Sstevel@tonic-gate { 14677c478bd9Sstevel@tonic-gate mblk_t *mp; 14687c478bd9Sstevel@tonic-gate 14697c478bd9Sstevel@tonic-gate if (size == 0) 14707c478bd9Sstevel@tonic-gate size = len1 + len2; 14717c478bd9Sstevel@tonic-gate ASSERT(size >= len1 + len2); 14727c478bd9Sstevel@tonic-gate 1473de8c4a14SErik Nordmark mp = soallocproto1(buf1, len1, size, sleepflg, cr); 14747c478bd9Sstevel@tonic-gate if (mp) 14757c478bd9Sstevel@tonic-gate soappendmsg(mp, buf2, len2); 14767c478bd9Sstevel@tonic-gate return (mp); 14777c478bd9Sstevel@tonic-gate } 14787c478bd9Sstevel@tonic-gate 14797c478bd9Sstevel@tonic-gate /* 14807c478bd9Sstevel@tonic-gate * Create a message using three kernel buffers. 14817c478bd9Sstevel@tonic-gate * If size is set that will determine the allocation size (for future 14827c478bd9Sstevel@tonic-gate * soappendmsg calls). If size is zero it is derived from the buffer 14837c478bd9Sstevel@tonic-gate * lengths. 14847c478bd9Sstevel@tonic-gate */ 14857c478bd9Sstevel@tonic-gate mblk_t * 14867c478bd9Sstevel@tonic-gate soallocproto3(const void *buf1, ssize_t len1, const void *buf2, ssize_t len2, 1487de8c4a14SErik Nordmark const void *buf3, ssize_t len3, ssize_t size, int sleepflg, cred_t *cr) 14887c478bd9Sstevel@tonic-gate { 14897c478bd9Sstevel@tonic-gate mblk_t *mp; 14907c478bd9Sstevel@tonic-gate 14917c478bd9Sstevel@tonic-gate if (size == 0) 14927c478bd9Sstevel@tonic-gate size = len1 + len2 +len3; 14937c478bd9Sstevel@tonic-gate ASSERT(size >= len1 + len2 + len3); 14947c478bd9Sstevel@tonic-gate 1495de8c4a14SErik Nordmark mp = soallocproto1(buf1, len1, size, sleepflg, cr); 14967c478bd9Sstevel@tonic-gate if (mp != NULL) { 14977c478bd9Sstevel@tonic-gate soappendmsg(mp, buf2, len2); 14987c478bd9Sstevel@tonic-gate soappendmsg(mp, buf3, len3); 14997c478bd9Sstevel@tonic-gate } 15007c478bd9Sstevel@tonic-gate return (mp); 15017c478bd9Sstevel@tonic-gate } 15027c478bd9Sstevel@tonic-gate 15037c478bd9Sstevel@tonic-gate #ifdef DEBUG 15047c478bd9Sstevel@tonic-gate char * 15057c478bd9Sstevel@tonic-gate pr_state(uint_t state, uint_t mode) 15067c478bd9Sstevel@tonic-gate { 15077c478bd9Sstevel@tonic-gate static char buf[1024]; 15087c478bd9Sstevel@tonic-gate 15097c478bd9Sstevel@tonic-gate buf[0] = 0; 15107c478bd9Sstevel@tonic-gate if (state & SS_ISCONNECTED) 1511903a11ebSrh87107 (void) strcat(buf, "ISCONNECTED "); 15127c478bd9Sstevel@tonic-gate if (state & SS_ISCONNECTING) 1513903a11ebSrh87107 (void) strcat(buf, "ISCONNECTING "); 15147c478bd9Sstevel@tonic-gate if (state & SS_ISDISCONNECTING) 1515903a11ebSrh87107 (void) strcat(buf, "ISDISCONNECTING "); 15167c478bd9Sstevel@tonic-gate if (state & SS_CANTSENDMORE) 1517903a11ebSrh87107 (void) strcat(buf, "CANTSENDMORE "); 15187c478bd9Sstevel@tonic-gate 15197c478bd9Sstevel@tonic-gate if (state & SS_CANTRCVMORE) 1520903a11ebSrh87107 (void) strcat(buf, "CANTRCVMORE "); 15217c478bd9Sstevel@tonic-gate if (state & SS_ISBOUND) 1522903a11ebSrh87107 (void) strcat(buf, "ISBOUND "); 15237c478bd9Sstevel@tonic-gate if (state & SS_NDELAY) 1524903a11ebSrh87107 (void) strcat(buf, "NDELAY "); 15257c478bd9Sstevel@tonic-gate if (state & SS_NONBLOCK) 1526903a11ebSrh87107 (void) strcat(buf, "NONBLOCK "); 15277c478bd9Sstevel@tonic-gate 15287c478bd9Sstevel@tonic-gate if (state & SS_ASYNC) 1529903a11ebSrh87107 (void) strcat(buf, "ASYNC "); 15307c478bd9Sstevel@tonic-gate if (state & SS_ACCEPTCONN) 1531903a11ebSrh87107 (void) strcat(buf, "ACCEPTCONN "); 15327c478bd9Sstevel@tonic-gate if (state & SS_SAVEDEOR) 1533903a11ebSrh87107 (void) strcat(buf, "SAVEDEOR "); 15347c478bd9Sstevel@tonic-gate 15357c478bd9Sstevel@tonic-gate if (state & SS_RCVATMARK) 1536903a11ebSrh87107 (void) strcat(buf, "RCVATMARK "); 15377c478bd9Sstevel@tonic-gate if (state & SS_OOBPEND) 1538903a11ebSrh87107 (void) strcat(buf, "OOBPEND "); 15397c478bd9Sstevel@tonic-gate if (state & SS_HAVEOOBDATA) 1540903a11ebSrh87107 (void) strcat(buf, "HAVEOOBDATA "); 15417c478bd9Sstevel@tonic-gate if (state & SS_HADOOBDATA) 1542903a11ebSrh87107 (void) strcat(buf, "HADOOBDATA "); 15437c478bd9Sstevel@tonic-gate 15447c478bd9Sstevel@tonic-gate if (mode & SM_PRIV) 1545903a11ebSrh87107 (void) strcat(buf, "PRIV "); 15467c478bd9Sstevel@tonic-gate if (mode & SM_ATOMIC) 1547903a11ebSrh87107 (void) strcat(buf, "ATOMIC "); 15487c478bd9Sstevel@tonic-gate if (mode & SM_ADDR) 1549903a11ebSrh87107 (void) strcat(buf, "ADDR "); 15507c478bd9Sstevel@tonic-gate if (mode & SM_CONNREQUIRED) 1551903a11ebSrh87107 (void) strcat(buf, "CONNREQUIRED "); 15527c478bd9Sstevel@tonic-gate 15537c478bd9Sstevel@tonic-gate if (mode & SM_FDPASSING) 1554903a11ebSrh87107 (void) strcat(buf, "FDPASSING "); 15557c478bd9Sstevel@tonic-gate if (mode & SM_EXDATA) 1556903a11ebSrh87107 (void) strcat(buf, "EXDATA "); 15577c478bd9Sstevel@tonic-gate if (mode & SM_OPTDATA) 1558903a11ebSrh87107 (void) strcat(buf, "OPTDATA "); 15597c478bd9Sstevel@tonic-gate if (mode & SM_BYTESTREAM) 1560903a11ebSrh87107 (void) strcat(buf, "BYTESTREAM "); 15617c478bd9Sstevel@tonic-gate return (buf); 15627c478bd9Sstevel@tonic-gate } 15637c478bd9Sstevel@tonic-gate 15647c478bd9Sstevel@tonic-gate char * 15657c478bd9Sstevel@tonic-gate pr_addr(int family, struct sockaddr *addr, t_uscalar_t addrlen) 15667c478bd9Sstevel@tonic-gate { 15677c478bd9Sstevel@tonic-gate static char buf[1024]; 15687c478bd9Sstevel@tonic-gate 15697c478bd9Sstevel@tonic-gate if (addr == NULL || addrlen == 0) { 1570903a11ebSrh87107 (void) sprintf(buf, "(len %d) %p", addrlen, (void *)addr); 15717c478bd9Sstevel@tonic-gate return (buf); 15727c478bd9Sstevel@tonic-gate } 15737c478bd9Sstevel@tonic-gate switch (family) { 15747c478bd9Sstevel@tonic-gate case AF_INET: { 15757c478bd9Sstevel@tonic-gate struct sockaddr_in sin; 15767c478bd9Sstevel@tonic-gate 15777c478bd9Sstevel@tonic-gate bcopy(addr, &sin, sizeof (sin)); 15787c478bd9Sstevel@tonic-gate 15797c478bd9Sstevel@tonic-gate (void) sprintf(buf, "(len %d) %x/%d", 1580b5fca8f8Stomee addrlen, ntohl(sin.sin_addr.s_addr), ntohs(sin.sin_port)); 15817c478bd9Sstevel@tonic-gate break; 15827c478bd9Sstevel@tonic-gate } 15837c478bd9Sstevel@tonic-gate case AF_INET6: { 15847c478bd9Sstevel@tonic-gate struct sockaddr_in6 sin6; 15857c478bd9Sstevel@tonic-gate uint16_t *piece = (uint16_t *)&sin6.sin6_addr; 15867c478bd9Sstevel@tonic-gate 15877c478bd9Sstevel@tonic-gate bcopy((char *)addr, (char *)&sin6, sizeof (sin6)); 1588903a11ebSrh87107 (void) sprintf(buf, "(len %d) %x:%x:%x:%x:%x:%x:%x:%x/%d", 15897c478bd9Sstevel@tonic-gate addrlen, 15907c478bd9Sstevel@tonic-gate ntohs(piece[0]), ntohs(piece[1]), 15917c478bd9Sstevel@tonic-gate ntohs(piece[2]), ntohs(piece[3]), 15927c478bd9Sstevel@tonic-gate ntohs(piece[4]), ntohs(piece[5]), 15937c478bd9Sstevel@tonic-gate ntohs(piece[6]), ntohs(piece[7]), 15947c478bd9Sstevel@tonic-gate ntohs(sin6.sin6_port)); 15957c478bd9Sstevel@tonic-gate break; 15967c478bd9Sstevel@tonic-gate } 15977c478bd9Sstevel@tonic-gate case AF_UNIX: { 15987c478bd9Sstevel@tonic-gate struct sockaddr_un *soun = (struct sockaddr_un *)addr; 15997c478bd9Sstevel@tonic-gate 1600b5fca8f8Stomee (void) sprintf(buf, "(len %d) %s", addrlen, 16017c478bd9Sstevel@tonic-gate (soun == NULL) ? "(none)" : soun->sun_path); 16027c478bd9Sstevel@tonic-gate break; 16037c478bd9Sstevel@tonic-gate } 16047c478bd9Sstevel@tonic-gate default: 16057c478bd9Sstevel@tonic-gate (void) sprintf(buf, "(unknown af %d)", family); 16067c478bd9Sstevel@tonic-gate break; 16077c478bd9Sstevel@tonic-gate } 16087c478bd9Sstevel@tonic-gate return (buf); 16097c478bd9Sstevel@tonic-gate } 16107c478bd9Sstevel@tonic-gate 16117c478bd9Sstevel@tonic-gate /* The logical equivalence operator (a if-and-only-if b) */ 161256f33205SJonathan Adams #define EQUIVALENT(a, b) (((a) && (b)) || (!(a) && (!(b)))) 16137c478bd9Sstevel@tonic-gate 16147c478bd9Sstevel@tonic-gate /* 16157c478bd9Sstevel@tonic-gate * Verify limitations and invariants on oob state. 16167c478bd9Sstevel@tonic-gate * Return 1 if OK, otherwise 0 so that it can be used as 16177c478bd9Sstevel@tonic-gate * ASSERT(verify_oobstate(so)); 16187c478bd9Sstevel@tonic-gate */ 16197c478bd9Sstevel@tonic-gate int 16207c478bd9Sstevel@tonic-gate so_verify_oobstate(struct sonode *so) 16217c478bd9Sstevel@tonic-gate { 16220f1702c5SYu Xiangning boolean_t havemark; 16230f1702c5SYu Xiangning 16247c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&so->so_lock)); 16257c478bd9Sstevel@tonic-gate 16267c478bd9Sstevel@tonic-gate /* 16277c478bd9Sstevel@tonic-gate * The possible state combinations are: 16287c478bd9Sstevel@tonic-gate * 0 16297c478bd9Sstevel@tonic-gate * SS_OOBPEND 16307c478bd9Sstevel@tonic-gate * SS_OOBPEND|SS_HAVEOOBDATA 16317c478bd9Sstevel@tonic-gate * SS_OOBPEND|SS_HADOOBDATA 16327c478bd9Sstevel@tonic-gate * SS_HADOOBDATA 16337c478bd9Sstevel@tonic-gate */ 16347c478bd9Sstevel@tonic-gate switch (so->so_state & (SS_OOBPEND|SS_HAVEOOBDATA|SS_HADOOBDATA)) { 16357c478bd9Sstevel@tonic-gate case 0: 16367c478bd9Sstevel@tonic-gate case SS_OOBPEND: 16377c478bd9Sstevel@tonic-gate case SS_OOBPEND|SS_HAVEOOBDATA: 16387c478bd9Sstevel@tonic-gate case SS_OOBPEND|SS_HADOOBDATA: 16397c478bd9Sstevel@tonic-gate case SS_HADOOBDATA: 16407c478bd9Sstevel@tonic-gate break; 16417c478bd9Sstevel@tonic-gate default: 16420f1702c5SYu Xiangning printf("Bad oob state 1 (%p): state %s\n", 16430f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16447c478bd9Sstevel@tonic-gate return (0); 16457c478bd9Sstevel@tonic-gate } 16467c478bd9Sstevel@tonic-gate 16477c478bd9Sstevel@tonic-gate /* SS_RCVATMARK should only be set when SS_OOBPEND is set */ 16487c478bd9Sstevel@tonic-gate if ((so->so_state & (SS_RCVATMARK|SS_OOBPEND)) == SS_RCVATMARK) { 16490f1702c5SYu Xiangning printf("Bad oob state 2 (%p): state %s\n", 16500f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16517c478bd9Sstevel@tonic-gate return (0); 16527c478bd9Sstevel@tonic-gate } 16537c478bd9Sstevel@tonic-gate 16547c478bd9Sstevel@tonic-gate /* 16550f1702c5SYu Xiangning * (havemark != 0 or SS_RCVATMARK) iff SS_OOBPEND 16560f1702c5SYu Xiangning * For TPI, the presence of a "mark" is indicated by sti_oobsigcnt. 16577c478bd9Sstevel@tonic-gate */ 16580f1702c5SYu Xiangning havemark = (SOCK_IS_NONSTR(so)) ? so->so_oobmark > 0 : 16590f1702c5SYu Xiangning SOTOTPI(so)->sti_oobsigcnt > 0; 16600f1702c5SYu Xiangning 166156f33205SJonathan Adams if (!EQUIVALENT(havemark || (so->so_state & SS_RCVATMARK), 16627c478bd9Sstevel@tonic-gate so->so_state & SS_OOBPEND)) { 16630f1702c5SYu Xiangning printf("Bad oob state 3 (%p): state %s\n", 16640f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16657c478bd9Sstevel@tonic-gate return (0); 16667c478bd9Sstevel@tonic-gate } 16677c478bd9Sstevel@tonic-gate 16687c478bd9Sstevel@tonic-gate /* 16697c478bd9Sstevel@tonic-gate * Unless SO_OOBINLINE we have so_oobmsg != NULL iff SS_HAVEOOBDATA 16707c478bd9Sstevel@tonic-gate */ 16717c478bd9Sstevel@tonic-gate if (!(so->so_options & SO_OOBINLINE) && 167256f33205SJonathan Adams !EQUIVALENT(so->so_oobmsg != NULL, so->so_state & SS_HAVEOOBDATA)) { 16730f1702c5SYu Xiangning printf("Bad oob state 4 (%p): state %s\n", 16740f1702c5SYu Xiangning (void *)so, pr_state(so->so_state, so->so_mode)); 16757c478bd9Sstevel@tonic-gate return (0); 16767c478bd9Sstevel@tonic-gate } 16770f1702c5SYu Xiangning 16780f1702c5SYu Xiangning if (!SOCK_IS_NONSTR(so) && 16790f1702c5SYu Xiangning SOTOTPI(so)->sti_oobsigcnt < SOTOTPI(so)->sti_oobcnt) { 16807c478bd9Sstevel@tonic-gate printf("Bad oob state 5 (%p): counts %d/%d state %s\n", 16810f1702c5SYu Xiangning (void *)so, SOTOTPI(so)->sti_oobsigcnt, 16820f1702c5SYu Xiangning SOTOTPI(so)->sti_oobcnt, 16830f1702c5SYu Xiangning pr_state(so->so_state, so->so_mode)); 16847c478bd9Sstevel@tonic-gate return (0); 16857c478bd9Sstevel@tonic-gate } 16860f1702c5SYu Xiangning 16877c478bd9Sstevel@tonic-gate return (1); 16887c478bd9Sstevel@tonic-gate } 168956f33205SJonathan Adams #undef EQUIVALENT 16907c478bd9Sstevel@tonic-gate #endif /* DEBUG */ 16917c478bd9Sstevel@tonic-gate 16927c478bd9Sstevel@tonic-gate /* initialize sockfs zone specific kstat related items */ 16937c478bd9Sstevel@tonic-gate void * 16947c478bd9Sstevel@tonic-gate sock_kstat_init(zoneid_t zoneid) 16957c478bd9Sstevel@tonic-gate { 16967c478bd9Sstevel@tonic-gate kstat_t *ksp; 16977c478bd9Sstevel@tonic-gate 16987c478bd9Sstevel@tonic-gate ksp = kstat_create_zone("sockfs", 0, "sock_unix_list", "misc", 16997c478bd9Sstevel@tonic-gate KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VAR_SIZE|KSTAT_FLAG_VIRTUAL, zoneid); 17007c478bd9Sstevel@tonic-gate 17017c478bd9Sstevel@tonic-gate if (ksp != NULL) { 17027c478bd9Sstevel@tonic-gate ksp->ks_update = sockfs_update; 17037c478bd9Sstevel@tonic-gate ksp->ks_snapshot = sockfs_snapshot; 17047c478bd9Sstevel@tonic-gate ksp->ks_lock = &socklist.sl_lock; 17057c478bd9Sstevel@tonic-gate ksp->ks_private = (void *)(uintptr_t)zoneid; 17067c478bd9Sstevel@tonic-gate kstat_install(ksp); 17077c478bd9Sstevel@tonic-gate } 17087c478bd9Sstevel@tonic-gate 17097c478bd9Sstevel@tonic-gate return (ksp); 17107c478bd9Sstevel@tonic-gate } 17117c478bd9Sstevel@tonic-gate 17127c478bd9Sstevel@tonic-gate /* tear down sockfs zone specific kstat related items */ 17137c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 17147c478bd9Sstevel@tonic-gate void 17157c478bd9Sstevel@tonic-gate sock_kstat_fini(zoneid_t zoneid, void *arg) 17167c478bd9Sstevel@tonic-gate { 17177c478bd9Sstevel@tonic-gate kstat_t *ksp = (kstat_t *)arg; 17187c478bd9Sstevel@tonic-gate 17197c478bd9Sstevel@tonic-gate if (ksp != NULL) { 17207c478bd9Sstevel@tonic-gate ASSERT(zoneid == (zoneid_t)(uintptr_t)ksp->ks_private); 17217c478bd9Sstevel@tonic-gate kstat_delete(ksp); 17227c478bd9Sstevel@tonic-gate } 17237c478bd9Sstevel@tonic-gate } 17247c478bd9Sstevel@tonic-gate 17257c478bd9Sstevel@tonic-gate /* 17267c478bd9Sstevel@tonic-gate * Zones: 17277c478bd9Sstevel@tonic-gate * Note that nactive is going to be different for each zone. 17287c478bd9Sstevel@tonic-gate * This means we require kstat to call sockfs_update and then sockfs_snapshot 17297c478bd9Sstevel@tonic-gate * for the same zone, or sockfs_snapshot will be taken into the wrong size 17307c478bd9Sstevel@tonic-gate * buffer. This is safe, but if the buffer is too small, user will not be 17317c478bd9Sstevel@tonic-gate * given details of all sockets. However, as this kstat has a ks_lock, kstat 17327c478bd9Sstevel@tonic-gate * driver will keep it locked between the update and the snapshot, so no 17337c478bd9Sstevel@tonic-gate * other process (zone) can currently get inbetween resulting in a wrong size 17347c478bd9Sstevel@tonic-gate * buffer allocation. 17357c478bd9Sstevel@tonic-gate */ 17367c478bd9Sstevel@tonic-gate static int 17377c478bd9Sstevel@tonic-gate sockfs_update(kstat_t *ksp, int rw) 17387c478bd9Sstevel@tonic-gate { 17397c478bd9Sstevel@tonic-gate uint_t nactive = 0; /* # of active AF_UNIX sockets */ 17407c478bd9Sstevel@tonic-gate struct sonode *so; /* current sonode on socklist */ 17417c478bd9Sstevel@tonic-gate zoneid_t myzoneid = (zoneid_t)(uintptr_t)ksp->ks_private; 17427c478bd9Sstevel@tonic-gate 17437c478bd9Sstevel@tonic-gate ASSERT((zoneid_t)(uintptr_t)ksp->ks_private == getzoneid()); 17447c478bd9Sstevel@tonic-gate 17457c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) { /* bounce all writes */ 17467c478bd9Sstevel@tonic-gate return (EACCES); 17477c478bd9Sstevel@tonic-gate } 17487c478bd9Sstevel@tonic-gate 17490f1702c5SYu Xiangning for (so = socklist.sl_list; so != NULL; so = SOTOTPI(so)->sti_next_so) { 17500f1702c5SYu Xiangning if (so->so_count != 0 && so->so_zoneid == myzoneid) { 17517c478bd9Sstevel@tonic-gate nactive++; 17527c478bd9Sstevel@tonic-gate } 17537c478bd9Sstevel@tonic-gate } 17547c478bd9Sstevel@tonic-gate ksp->ks_ndata = nactive; 17557c478bd9Sstevel@tonic-gate ksp->ks_data_size = nactive * sizeof (struct k_sockinfo); 17567c478bd9Sstevel@tonic-gate 17577c478bd9Sstevel@tonic-gate return (0); 17587c478bd9Sstevel@tonic-gate } 17597c478bd9Sstevel@tonic-gate 17607c478bd9Sstevel@tonic-gate static int 17617c478bd9Sstevel@tonic-gate sockfs_snapshot(kstat_t *ksp, void *buf, int rw) 17627c478bd9Sstevel@tonic-gate { 17637c478bd9Sstevel@tonic-gate int ns; /* # of sonodes we've copied */ 17647c478bd9Sstevel@tonic-gate struct sonode *so; /* current sonode on socklist */ 17657c478bd9Sstevel@tonic-gate struct k_sockinfo *pksi; /* where we put sockinfo data */ 17667c478bd9Sstevel@tonic-gate t_uscalar_t sn_len; /* soa_len */ 17677c478bd9Sstevel@tonic-gate zoneid_t myzoneid = (zoneid_t)(uintptr_t)ksp->ks_private; 17680f1702c5SYu Xiangning sotpi_info_t *sti; 17697c478bd9Sstevel@tonic-gate 17707c478bd9Sstevel@tonic-gate ASSERT((zoneid_t)(uintptr_t)ksp->ks_private == getzoneid()); 17717c478bd9Sstevel@tonic-gate 17727c478bd9Sstevel@tonic-gate ksp->ks_snaptime = gethrtime(); 17737c478bd9Sstevel@tonic-gate 17747c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) { /* bounce all writes */ 17757c478bd9Sstevel@tonic-gate return (EACCES); 17767c478bd9Sstevel@tonic-gate } 17777c478bd9Sstevel@tonic-gate 17787c478bd9Sstevel@tonic-gate /* 17797c478bd9Sstevel@tonic-gate * for each sonode on the socklist, we massage the important 17807c478bd9Sstevel@tonic-gate * info into buf, in k_sockinfo format. 17817c478bd9Sstevel@tonic-gate */ 17827c478bd9Sstevel@tonic-gate pksi = (struct k_sockinfo *)buf; 17830f1702c5SYu Xiangning ns = 0; 17840f1702c5SYu Xiangning for (so = socklist.sl_list; so != NULL; so = SOTOTPI(so)->sti_next_so) { 17857c478bd9Sstevel@tonic-gate /* only stuff active sonodes and the same zone: */ 17860f1702c5SYu Xiangning if (so->so_count == 0 || so->so_zoneid != myzoneid) { 17877c478bd9Sstevel@tonic-gate continue; 17887c478bd9Sstevel@tonic-gate } 17897c478bd9Sstevel@tonic-gate 17907c478bd9Sstevel@tonic-gate /* 17917c478bd9Sstevel@tonic-gate * If the sonode was activated between the update and the 17927c478bd9Sstevel@tonic-gate * snapshot, we're done - as this is only a snapshot. 17937c478bd9Sstevel@tonic-gate */ 17947c478bd9Sstevel@tonic-gate if ((caddr_t)(pksi) >= (caddr_t)buf + ksp->ks_data_size) { 17957c478bd9Sstevel@tonic-gate break; 17967c478bd9Sstevel@tonic-gate } 17977c478bd9Sstevel@tonic-gate 17980f1702c5SYu Xiangning sti = SOTOTPI(so); 17997c478bd9Sstevel@tonic-gate /* copy important info into buf: */ 18007c478bd9Sstevel@tonic-gate pksi->ks_si.si_size = sizeof (struct k_sockinfo); 18017c478bd9Sstevel@tonic-gate pksi->ks_si.si_family = so->so_family; 18027c478bd9Sstevel@tonic-gate pksi->ks_si.si_type = so->so_type; 18037c478bd9Sstevel@tonic-gate pksi->ks_si.si_flag = so->so_flag; 18047c478bd9Sstevel@tonic-gate pksi->ks_si.si_state = so->so_state; 18050f1702c5SYu Xiangning pksi->ks_si.si_serv_type = sti->sti_serv_type; 18060f1702c5SYu Xiangning pksi->ks_si.si_ux_laddr_sou_magic = 18070f1702c5SYu Xiangning sti->sti_ux_laddr.soua_magic; 18080f1702c5SYu Xiangning pksi->ks_si.si_ux_faddr_sou_magic = 18090f1702c5SYu Xiangning sti->sti_ux_faddr.soua_magic; 18100f1702c5SYu Xiangning pksi->ks_si.si_laddr_soa_len = sti->sti_laddr.soa_len; 18110f1702c5SYu Xiangning pksi->ks_si.si_faddr_soa_len = sti->sti_faddr.soa_len; 18127c478bd9Sstevel@tonic-gate pksi->ks_si.si_szoneid = so->so_zoneid; 18130f1702c5SYu Xiangning pksi->ks_si.si_faddr_noxlate = sti->sti_faddr_noxlate; 18147c478bd9Sstevel@tonic-gate 18157c478bd9Sstevel@tonic-gate mutex_enter(&so->so_lock); 18167c478bd9Sstevel@tonic-gate 18170f1702c5SYu Xiangning if (sti->sti_laddr_sa != NULL) { 18180f1702c5SYu Xiangning ASSERT(sti->sti_laddr_sa->sa_data != NULL); 18190f1702c5SYu Xiangning sn_len = sti->sti_laddr_len; 18207c478bd9Sstevel@tonic-gate ASSERT(sn_len <= sizeof (short) + 18217c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_laddr_sun_path)); 18227c478bd9Sstevel@tonic-gate 18237c478bd9Sstevel@tonic-gate pksi->ks_si.si_laddr_family = 18240f1702c5SYu Xiangning sti->sti_laddr_sa->sa_family; 18257c478bd9Sstevel@tonic-gate if (sn_len != 0) { 18267c478bd9Sstevel@tonic-gate /* AF_UNIX socket names are NULL terminated */ 18277c478bd9Sstevel@tonic-gate (void) strncpy(pksi->ks_si.si_laddr_sun_path, 18280f1702c5SYu Xiangning sti->sti_laddr_sa->sa_data, 18297c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_laddr_sun_path)); 18307c478bd9Sstevel@tonic-gate sn_len = strlen(pksi->ks_si.si_laddr_sun_path); 18317c478bd9Sstevel@tonic-gate } 18327c478bd9Sstevel@tonic-gate pksi->ks_si.si_laddr_sun_path[sn_len] = 0; 18337c478bd9Sstevel@tonic-gate } 18347c478bd9Sstevel@tonic-gate 18350f1702c5SYu Xiangning if (sti->sti_faddr_sa != NULL) { 18360f1702c5SYu Xiangning ASSERT(sti->sti_faddr_sa->sa_data != NULL); 18370f1702c5SYu Xiangning sn_len = sti->sti_faddr_len; 18387c478bd9Sstevel@tonic-gate ASSERT(sn_len <= sizeof (short) + 18397c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_faddr_sun_path)); 18407c478bd9Sstevel@tonic-gate 18417c478bd9Sstevel@tonic-gate pksi->ks_si.si_faddr_family = 18420f1702c5SYu Xiangning sti->sti_faddr_sa->sa_family; 18437c478bd9Sstevel@tonic-gate if (sn_len != 0) { 18447c478bd9Sstevel@tonic-gate (void) strncpy(pksi->ks_si.si_faddr_sun_path, 18450f1702c5SYu Xiangning sti->sti_faddr_sa->sa_data, 18467c478bd9Sstevel@tonic-gate sizeof (pksi->ks_si.si_faddr_sun_path)); 18477c478bd9Sstevel@tonic-gate sn_len = strlen(pksi->ks_si.si_faddr_sun_path); 18487c478bd9Sstevel@tonic-gate } 18497c478bd9Sstevel@tonic-gate pksi->ks_si.si_faddr_sun_path[sn_len] = 0; 18507c478bd9Sstevel@tonic-gate } 18517c478bd9Sstevel@tonic-gate 18527c478bd9Sstevel@tonic-gate mutex_exit(&so->so_lock); 18537c478bd9Sstevel@tonic-gate 18547c478bd9Sstevel@tonic-gate (void) sprintf(pksi->ks_straddr[0], "%p", (void *)so); 18557c478bd9Sstevel@tonic-gate (void) sprintf(pksi->ks_straddr[1], "%p", 18560f1702c5SYu Xiangning (void *)sti->sti_ux_laddr.soua_vp); 18577c478bd9Sstevel@tonic-gate (void) sprintf(pksi->ks_straddr[2], "%p", 18580f1702c5SYu Xiangning (void *)sti->sti_ux_faddr.soua_vp); 18597c478bd9Sstevel@tonic-gate 18607c478bd9Sstevel@tonic-gate ns++; 18617c478bd9Sstevel@tonic-gate pksi++; 18627c478bd9Sstevel@tonic-gate } 18637c478bd9Sstevel@tonic-gate 18647c478bd9Sstevel@tonic-gate ksp->ks_ndata = ns; 18657c478bd9Sstevel@tonic-gate return (0); 18667c478bd9Sstevel@tonic-gate } 18677c478bd9Sstevel@tonic-gate 18687c478bd9Sstevel@tonic-gate ssize_t 18697c478bd9Sstevel@tonic-gate soreadfile(file_t *fp, uchar_t *buf, u_offset_t fileoff, int *err, size_t size) 18707c478bd9Sstevel@tonic-gate { 18717c478bd9Sstevel@tonic-gate struct uio auio; 18727c478bd9Sstevel@tonic-gate struct iovec aiov[MSG_MAXIOVLEN]; 18737c478bd9Sstevel@tonic-gate register vnode_t *vp; 18747c478bd9Sstevel@tonic-gate int ioflag, rwflag; 18757c478bd9Sstevel@tonic-gate ssize_t cnt; 18767c478bd9Sstevel@tonic-gate int error = 0; 18777c478bd9Sstevel@tonic-gate int iovcnt = 0; 18787c478bd9Sstevel@tonic-gate short fflag; 18797c478bd9Sstevel@tonic-gate 18807c478bd9Sstevel@tonic-gate vp = fp->f_vnode; 18817c478bd9Sstevel@tonic-gate fflag = fp->f_flag; 18827c478bd9Sstevel@tonic-gate 18837c478bd9Sstevel@tonic-gate rwflag = 0; 18847c478bd9Sstevel@tonic-gate aiov[0].iov_base = (caddr_t)buf; 18857c478bd9Sstevel@tonic-gate aiov[0].iov_len = size; 18867c478bd9Sstevel@tonic-gate iovcnt = 1; 18877c478bd9Sstevel@tonic-gate cnt = (ssize_t)size; 18887c478bd9Sstevel@tonic-gate (void) VOP_RWLOCK(vp, rwflag, NULL); 18897c478bd9Sstevel@tonic-gate 18907c478bd9Sstevel@tonic-gate auio.uio_loffset = fileoff; 18917c478bd9Sstevel@tonic-gate auio.uio_iov = aiov; 18927c478bd9Sstevel@tonic-gate auio.uio_iovcnt = iovcnt; 18937c478bd9Sstevel@tonic-gate auio.uio_resid = cnt; 18947c478bd9Sstevel@tonic-gate auio.uio_segflg = UIO_SYSSPACE; 18957c478bd9Sstevel@tonic-gate auio.uio_llimit = MAXOFFSET_T; 18967c478bd9Sstevel@tonic-gate auio.uio_fmode = fflag; 18977c478bd9Sstevel@tonic-gate auio.uio_extflg = UIO_COPY_CACHED; 18987c478bd9Sstevel@tonic-gate 18997c478bd9Sstevel@tonic-gate ioflag = auio.uio_fmode & (FAPPEND|FSYNC|FDSYNC|FRSYNC); 19007c478bd9Sstevel@tonic-gate 19017c478bd9Sstevel@tonic-gate /* If read sync is not asked for, filter sync flags */ 19027c478bd9Sstevel@tonic-gate if ((ioflag & FRSYNC) == 0) 19037c478bd9Sstevel@tonic-gate ioflag &= ~(FSYNC|FDSYNC); 19047c478bd9Sstevel@tonic-gate error = VOP_READ(vp, &auio, ioflag, fp->f_cred, NULL); 19057c478bd9Sstevel@tonic-gate cnt -= auio.uio_resid; 19067c478bd9Sstevel@tonic-gate 19077c478bd9Sstevel@tonic-gate VOP_RWUNLOCK(vp, rwflag, NULL); 19087c478bd9Sstevel@tonic-gate 19097c478bd9Sstevel@tonic-gate if (error == EINTR && cnt != 0) 19107c478bd9Sstevel@tonic-gate error = 0; 19117c478bd9Sstevel@tonic-gate out: 19127c478bd9Sstevel@tonic-gate if (error != 0) { 19137c478bd9Sstevel@tonic-gate *err = error; 19147c478bd9Sstevel@tonic-gate return (0); 19157c478bd9Sstevel@tonic-gate } else { 19167c478bd9Sstevel@tonic-gate *err = 0; 19177c478bd9Sstevel@tonic-gate return (cnt); 19187c478bd9Sstevel@tonic-gate } 19197c478bd9Sstevel@tonic-gate } 19200f1702c5SYu Xiangning 19210f1702c5SYu Xiangning int 19220f1702c5SYu Xiangning so_copyin(const void *from, void *to, size_t size, int fromkernel) 19230f1702c5SYu Xiangning { 19240f1702c5SYu Xiangning if (fromkernel) { 19250f1702c5SYu Xiangning bcopy(from, to, size); 19260f1702c5SYu Xiangning return (0); 19270f1702c5SYu Xiangning } 19280f1702c5SYu Xiangning return (xcopyin(from, to, size)); 19290f1702c5SYu Xiangning } 19300f1702c5SYu Xiangning 19310f1702c5SYu Xiangning int 19320f1702c5SYu Xiangning so_copyout(const void *from, void *to, size_t size, int tokernel) 19330f1702c5SYu Xiangning { 19340f1702c5SYu Xiangning if (tokernel) { 19350f1702c5SYu Xiangning bcopy(from, to, size); 19360f1702c5SYu Xiangning return (0); 19370f1702c5SYu Xiangning } 19380f1702c5SYu Xiangning return (xcopyout(from, to, size)); 19390f1702c5SYu Xiangning } 1940