1 /* 2 * Copyright (c) 2003 Ryan McBride. All rights reserved. 3 * Copyright (c) 2004 Max Laier. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/types.h> 30 #include <sys/ioctl.h> 31 #include <sys/socket.h> 32 33 #include <net/if.h> 34 #include <netinet/in.h> 35 #include <net/pfvar.h> 36 #include <net/if_pfsync.h> 37 #include <net/route.h> 38 #include <arpa/inet.h> 39 40 #include <err.h> 41 #include <netdb.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 #include "ifconfig.h" 48 49 void setpfsync_syncdev(const char *, int, int, const struct afswtch *); 50 void unsetpfsync_syncdev(const char *, int, int, const struct afswtch *); 51 void setpfsync_syncpeer(const char *, int, int, const struct afswtch *); 52 void unsetpfsync_syncpeer(const char *, int, int, const struct afswtch *); 53 void setpfsync_syncpeer(const char *, int, int, const struct afswtch *); 54 void setpfsync_maxupd(const char *, int, int, const struct afswtch *); 55 void pfsync_status(int); 56 57 void 58 setpfsync_syncdev(const char *val, int d, int s, const struct afswtch *rafp) 59 { 60 struct pfsyncreq preq; 61 62 bzero((char *)&preq, sizeof(struct pfsyncreq)); 63 ifr.ifr_data = (caddr_t)&preq; 64 65 if (ioctl(s, SIOCGETPFSYNC, (caddr_t)&ifr) == -1) 66 err(1, "SIOCGETPFSYNC"); 67 68 strlcpy(preq.pfsyncr_syncdev, val, sizeof(preq.pfsyncr_syncdev)); 69 70 if (ioctl(s, SIOCSETPFSYNC, (caddr_t)&ifr) == -1) 71 err(1, "SIOCSETPFSYNC"); 72 } 73 74 /* ARGSUSED */ 75 void 76 unsetpfsync_syncdev(const char *val, int d, int s, const struct afswtch *rafp) 77 { 78 struct pfsyncreq preq; 79 80 bzero((char *)&preq, sizeof(struct pfsyncreq)); 81 ifr.ifr_data = (caddr_t)&preq; 82 83 if (ioctl(s, SIOCGETPFSYNC, (caddr_t)&ifr) == -1) 84 err(1, "SIOCGETPFSYNC"); 85 86 bzero((char *)&preq.pfsyncr_syncdev, sizeof(preq.pfsyncr_syncdev)); 87 88 if (ioctl(s, SIOCSETPFSYNC, (caddr_t)&ifr) == -1) 89 err(1, "SIOCSETPFSYNC"); 90 } 91 92 /* ARGSUSED */ 93 void 94 setpfsync_syncpeer(const char *val, int d, int s, const struct afswtch *rafp) 95 { 96 struct pfsyncreq preq; 97 struct addrinfo hints, *peerres; 98 int ecode; 99 100 bzero((char *)&preq, sizeof(struct pfsyncreq)); 101 ifr.ifr_data = (caddr_t)&preq; 102 103 if (ioctl(s, SIOCGETPFSYNC, (caddr_t)&ifr) == -1) 104 err(1, "SIOCGETPFSYNC"); 105 106 memset(&hints, 0, sizeof(hints)); 107 hints.ai_family = AF_INET; 108 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 109 110 if ((ecode = getaddrinfo(val, NULL, &hints, &peerres)) != 0) 111 errx(1, "error in parsing address string: %s", 112 gai_strerror(ecode)); 113 114 if (peerres->ai_addr->sa_family != AF_INET) 115 errx(1, "only IPv4 addresses supported for the syncpeer"); 116 117 preq.pfsyncr_syncpeer.s_addr = ((struct sockaddr_in *) 118 peerres->ai_addr)->sin_addr.s_addr; 119 120 if (ioctl(s, SIOCSETPFSYNC, (caddr_t)&ifr) == -1) 121 err(1, "SIOCSETPFSYNC"); 122 } 123 124 /* ARGSUSED */ 125 void 126 unsetpfsync_syncpeer(const char *val, int d, int s, const struct afswtch *rafp) 127 { 128 struct pfsyncreq preq; 129 130 bzero((char *)&preq, sizeof(struct pfsyncreq)); 131 ifr.ifr_data = (caddr_t)&preq; 132 133 if (ioctl(s, SIOCGETPFSYNC, (caddr_t)&ifr) == -1) 134 err(1, "SIOCGETPFSYNC"); 135 136 preq.pfsyncr_syncpeer.s_addr = 0; 137 138 if (ioctl(s, SIOCSETPFSYNC, (caddr_t)&ifr) == -1) 139 err(1, "SIOCSETPFSYNC"); 140 } 141 142 /* ARGSUSED */ 143 void 144 setpfsync_maxupd(const char *val, int d, int s, const struct afswtch *rafp) 145 { 146 struct pfsyncreq preq; 147 int maxupdates; 148 149 maxupdates = atoi(val); 150 if ((maxupdates < 0) || (maxupdates > 255)) 151 errx(1, "maxupd %s: out of range", val); 152 153 memset((char *)&preq, 0, sizeof(struct pfsyncreq)); 154 ifr.ifr_data = (caddr_t)&preq; 155 156 if (ioctl(s, SIOCGETPFSYNC, (caddr_t)&ifr) == -1) 157 err(1, "SIOCGETPFSYNC"); 158 159 preq.pfsyncr_maxupdates = maxupdates; 160 161 if (ioctl(s, SIOCSETPFSYNC, (caddr_t)&ifr) == -1) 162 err(1, "SIOCSETPFSYNC"); 163 } 164 165 void 166 pfsync_status(int s) 167 { 168 struct pfsyncreq preq; 169 170 bzero((char *)&preq, sizeof(struct pfsyncreq)); 171 ifr.ifr_data = (caddr_t)&preq; 172 173 if (ioctl(s, SIOCGETPFSYNC, (caddr_t)&ifr) == -1) 174 return; 175 176 if (preq.pfsyncr_syncdev[0] != '\0' || 177 preq.pfsyncr_syncpeer.s_addr != INADDR_PFSYNC_GROUP) 178 printf("\t"); 179 180 if (preq.pfsyncr_syncdev[0] != '\0') 181 printf("pfsync: syncdev: %s ", preq.pfsyncr_syncdev); 182 if (preq.pfsyncr_syncpeer.s_addr != INADDR_PFSYNC_GROUP) 183 printf("syncpeer: %s ", inet_ntoa(preq.pfsyncr_syncpeer)); 184 185 if (preq.pfsyncr_syncdev[0] != '\0' || 186 preq.pfsyncr_syncpeer.s_addr != INADDR_PFSYNC_GROUP) 187 printf("maxupd: %d\n", preq.pfsyncr_maxupdates); 188 } 189 190 static struct cmd pfsync_cmds[] = { 191 DEF_CMD_ARG("syncdev", setpfsync_syncdev), 192 DEF_CMD("-syncdev", 1, unsetpfsync_syncdev), 193 DEF_CMD_ARG("syncif", setpfsync_syncdev), 194 DEF_CMD("-syncif", 1, unsetpfsync_syncdev), 195 DEF_CMD_ARG("syncpeer", setpfsync_syncpeer), 196 DEF_CMD("-syncpeer", 1, unsetpfsync_syncpeer), 197 DEF_CMD_ARG("maxupd", setpfsync_maxupd) 198 }; 199 static struct afswtch af_pfsync = { 200 .af_name = "af_pfsync", 201 .af_af = AF_UNSPEC, 202 .af_other_status = pfsync_status, 203 }; 204 205 static __constructor void 206 pfsync_ctor(void) 207 { 208 #define N(a) (sizeof(a) / sizeof(a[0])) 209 int i; 210 211 for (i = 0; i < N(pfsync_cmds); i++) 212 cmd_register(&pfsync_cmds[i]); 213 af_register(&af_pfsync); 214 #undef N 215 } 216