diff options
Diffstat (limited to 'src/customdhcpcd/dhcpcd.c')
| -rw-r--r-- | src/customdhcpcd/dhcpcd.c | 1237 |
1 files changed, 643 insertions, 594 deletions
diff --git a/src/customdhcpcd/dhcpcd.c b/src/customdhcpcd/dhcpcd.c index d0ad5e7..31bfdcb 100644 --- a/src/customdhcpcd/dhcpcd.c +++ b/src/customdhcpcd/dhcpcd.c @@ -1,28 +1,28 @@ - /* dhcpcd - DHCP client daemon - * Copyright 2006-2008 Roy Marples <roy@marples.name> - * All rights reserved - - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ +/* dhcpcd - DHCP client daemon +* Copyright 2006-2008 Roy Marples <roy@marples.name> +* All rights reserved + +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* 1. Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* 2. Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in the +* documentation and/or other materials provided with the distribution. +* +* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +* SUCH DAMAGE. +*/ const char copyright[] = "Copyright (c) 2006-2008 Roy Marples"; @@ -55,42 +55,43 @@ const char copyright[] = "Copyright (c) 2006-2008 Roy Marples"; static int doversion = 0; static int dohelp = 0; #define EXTRA_OPTS -static const struct option longopts[] = { - {"arp", no_argument, NULL, 'a'}, - {"script", required_argument, NULL, 'c'}, - {"debug", no_argument, NULL, 'd'}, - {"hostname", optional_argument, NULL, 'h'}, - {"classid", optional_argument, NULL, 'i'}, - {"release", no_argument, NULL, 'k'}, - {"leasetime", required_argument, NULL, 'l'}, - {"metric", required_argument, NULL, 'm'}, - {"renew", no_argument, NULL, 'n'}, - {"persistent", no_argument, NULL, 'p'}, - {"qtsocketaddress", required_argument, NULL, 'q'}, - {"inform", optional_argument, NULL, 's'}, - {"request", optional_argument, NULL, 'r'}, - {"timeout", required_argument, NULL, 't'}, - {"userclass", required_argument, NULL, 'u'}, - {"exit", no_argument, NULL, 'x'}, - {"lastlease", no_argument, NULL, 'E'}, - {"fqdn", required_argument, NULL, 'F'}, - {"nogateway", no_argument, NULL, 'G'}, - {"sethostname", no_argument, NULL, 'H'}, - {"clientid", optional_argument, NULL, 'I'}, - {"noipv4ll", no_argument, NULL, 'L'}, - {"nomtu", no_argument, NULL, 'M'}, - {"nontp", no_argument, NULL, 'N'}, - {"nodns", no_argument, NULL, 'R'}, - {"msscr", no_argument, NULL, 'S'}, - {"test", no_argument, NULL, 'T'}, - {"nonis", no_argument, NULL, 'Y'}, - {"help", no_argument, &dohelp, 1}, - {"version", no_argument, &doversion, 1}, +static const struct option longopts[] = +{ + {"arp", no_argument, NULL, 'a'}, + {"script", required_argument, NULL, 'c'}, + {"debug", no_argument, NULL, 'd'}, + {"hostname", optional_argument, NULL, 'h'}, + {"classid", optional_argument, NULL, 'i'}, + {"release", no_argument, NULL, 'k'}, + {"leasetime", required_argument, NULL, 'l'}, + {"metric", required_argument, NULL, 'm'}, + {"renew", no_argument, NULL, 'n'}, + {"persistent", no_argument, NULL, 'p'}, + {"qtsocketaddress", required_argument, NULL, 'q'}, + {"inform", optional_argument, NULL, 's'}, + {"request", optional_argument, NULL, 'r'}, + {"timeout", required_argument, NULL, 't'}, + {"userclass", required_argument, NULL, 'u'}, + {"exit", no_argument, NULL, 'x'}, + {"lastlease", no_argument, NULL, 'E'}, + {"fqdn", required_argument, NULL, 'F'}, + {"nogateway", no_argument, NULL, 'G'}, + {"sethostname", no_argument, NULL, 'H'}, + {"clientid", optional_argument, NULL, 'I'}, + {"noipv4ll", no_argument, NULL, 'L'}, + {"nomtu", no_argument, NULL, 'M'}, + {"nontp", no_argument, NULL, 'N'}, + {"nodns", no_argument, NULL, 'R'}, + {"msscr", no_argument, NULL, 'S'}, + {"test", no_argument, NULL, 'T'}, + {"nonis", no_argument, NULL, 'Y'}, + {"help", no_argument, &dohelp, 1}, + {"version", no_argument, &doversion, 1}, #ifdef THERE_IS_NO_FORK - {"daemonised", no_argument, NULL, 'f'}, - {"skiproutes", required_argument, NULL, 'g'}, + {"daemonised", no_argument, NULL, 'f'}, + {"skiproutes", required_argument, NULL, 'g'}, #endif - {NULL, 0, NULL, 0} + {NULL, 0, NULL, 0} }; #ifdef THERE_IS_NO_FORK @@ -104,568 +105,616 @@ char *dhcpcd_skiproutes = NULL; static int atoint (const char *s) { - char *t; - long n; - - errno = 0; - n = strtol (s, &t, 0); - if ((errno != 0 && n == 0) || s == t || - (errno == ERANGE && (n == LONG_MAX || n == LONG_MIN))) - { - logger (LOG_ERR, "`%s' out of range", s); - return (-1); - } - - return ((int) n); + char *t; + long n; + + errno = 0; + n = strtol (s, &t, 0); + if ((errno != 0 && n == 0) || s == t || + (errno == ERANGE && (n == LONG_MAX || n == LONG_MIN))) + { + logger (LOG_ERR, "`%s' out of range", s); + return (-1); + } + + return ((int) n); } static pid_t read_pid (const char *pidfile) { - FILE *fp; - pid_t pid = 0; + FILE *fp; + pid_t pid = 0; - if ((fp = fopen (pidfile, "r")) == NULL) { - errno = ENOENT; - return 0; - } + if ((fp = fopen (pidfile, "r")) == NULL) + { + errno = ENOENT; + return 0; + } - fscanf (fp, "%d", &pid); - fclose (fp); + fscanf (fp, "%d", &pid); + fclose (fp); - return (pid); + return (pid); } static void usage (void) { - printf ("usage: "PACKAGE" [-adknpEGHMNRSTY] [-c script] [-h hostname] [-i classID]\n" - " [-l leasetime] [-m metric] [-r ipaddress] [-s ipaddress]\n" - " [-t timeout] [-u userclass] [-F none | ptr | both]\n" - " [-I clientID] [-q qtsocketaddress] <interface>\n"); + printf ("usage: "PACKAGE" [-adknpEGHMNRSTY] [-c script] [-h hostname] [-i classID]\n" + " [-l leasetime] [-m metric] [-r ipaddress] [-s ipaddress]\n" + " [-t timeout] [-u userclass] [-F none | ptr | both]\n" + " [-I clientID] [-q qtsocketaddress] <interface>\n"); } int main (int argc, char **argv) { - options_t *options; - int userclasses = 0; - int opt; - int option_index = 0; - char *prefix; - pid_t pid; - int debug = 0; - int i; - int pidfd = -1; - int sig = 0; - int retval = EXIT_FAILURE; - - /* Close any un-needed fd's */ - for (i = getdtablesize() - 1; i >= 3; --i) - close (i); - - openlog (PACKAGE, LOG_PID, LOG_LOCAL0); - - options = xzalloc (sizeof (*options)); - options->script = (char *) DEFAULT_SCRIPT; - snprintf (options->classid, CLASS_ID_MAX_LEN, "%s %s", - PACKAGE, VERSION); - - options->doarp = true; - options->dodns = true; - options->domtu = true; - options->donis = true; - options->dontp = true; - options->dogateway = true; - options->daemonise = true; - options->doinform = false; - options->doipv4ll = true; - options->doduid = true; - options->timeout = DEFAULT_TIMEOUT; - /* added by Niklas Goby, additional field, storing the socket address path for - * communicating with Qt "server" - * defined in dhcpcd.h */ - strcpy(options->qtsocketaddress, DEFAULT_QTSOCKETADDRESS); - - gethostname (options->hostname, sizeof (options->hostname)); - if (strcmp (options->hostname, "(none)") == 0 || - strcmp (options->hostname, "localhost") == 0) - memset (options->hostname, 0, sizeof (options->hostname)); - - - /* Don't set any optional arguments here so we retain POSIX - * compatibility with getopt */ - while ((opt = getopt_long(argc, argv, EXTRA_OPTS - "c:dh:i:kl:m:npq:r:s:t:u:xAEF:GHI:LMNRSTY", - longopts, &option_index)) != -1) - { - switch (opt) { - case 0: - if (longopts[option_index].flag) - break; - logger (LOG_ERR, - "option `%s' should set a flag", - longopts[option_index].name); - goto abort; - case 'c': - options->script = optarg; - break; - case 'd': - debug++; - switch (debug) { - case 1: - setloglevel (LOG_DEBUG); - break; - case 2: - options->daemonise = false; - break; - } - break; - #ifdef THERE_IS_NO_FORK - case 'f': - options->daemonised = true; - close_fds (); - break; - case 'g': - dhcpcd_skiproutes = xstrdup (optarg); - break; - #endif - case 'h': - if (! optarg) - *options->hostname = '\0'; - else if (strlen (optarg) > MAXHOSTNAMELEN) { - logger (LOG_ERR, - "`%s' too long for HostName string, max is %d", - optarg, MAXHOSTNAMELEN); - goto abort; - } else - strlcpy (options->hostname, optarg, - sizeof (options->hostname)); - break; - case 'i': - if (! optarg) { - *options->classid = '\0'; - } else if (strlen (optarg) > CLASS_ID_MAX_LEN) { - logger (LOG_ERR, - "`%s' too long for ClassID string, max is %d", - optarg, CLASS_ID_MAX_LEN); - goto abort; - } else - strlcpy (options->classid, optarg, - sizeof (options->classid)); - break; - case 'k': - sig = SIGHUP; - break; - case 'l': - if (*optarg == '-') { - logger (LOG_ERR, - "leasetime must be a positive value"); - goto abort; - } - errno = 0; - options->leasetime = (uint32_t) strtol (optarg, NULL, 0); - if (errno == EINVAL || errno == ERANGE) { - logger (LOG_ERR, "`%s' out of range", optarg); - goto abort; - } - break; - case 'm': - options->metric = atoint (optarg); - if (options->metric < 0) { - logger (LOG_ERR, - "metric must be a positive value"); - goto abort; - } - break; - case 'n': - sig = SIGALRM; - break; - case 'p': - options->persistent = true; - break; - case 'q': - if (strlen(optarg) > QTSOCKETADDRESSLENGTH) { - logger(LOG_ERR, "`%s' too long for an socket address path (max=%d)", - optarg, QTSOCKETADDRESSLENGTH); - goto abort; - } - strlcpy(options->qtsocketaddress, optarg, sizeof(options->qtsocketaddress)); - break; - case 's': - options->doinform = true; - options->doarp = false; - if (! optarg || strlen (optarg) == 0) { - options->request_address.s_addr = 0; - break; - } else { - char *slash = strchr (optarg, '/'); - if (slash) { - int cidr; - /* nullify the slash, so the -r option can read the - * address */ - *slash++ = '\0'; - if (sscanf (slash, "%d", &cidr) != 1 || - inet_cidrtoaddr (cidr, &options->request_netmask) != 0) { - logger (LOG_ERR, "`%s' is not a valid CIDR", slash); - goto abort; - } - } - } - /* FALLTHROUGH */ - case 'r': - if (! options->doinform) - options->dorequest = true; - if (strlen (optarg) > 0 && - ! inet_aton (optarg, &options->request_address)) - { - logger (LOG_ERR, "`%s' is not a valid IP address", optarg); - goto abort; - } - break; - case 't': - options->timeout = atoint (optarg); - if (options->timeout < 0) { - logger (LOG_ERR, "timeout must be a positive value"); - goto abort; - } - break; - case 'u': - { - int offset = 0; - for (i = 0; i < userclasses; i++) - offset += (int) options->userclass[offset] + 1; - if (offset + 1 + strlen (optarg) > USERCLASS_MAX_LEN) { - logger (LOG_ERR, "userclass overrun, max is %d", - USERCLASS_MAX_LEN); - goto abort; - } - userclasses++; - memcpy (options->userclass + offset + 1 , optarg, strlen (optarg)); - options->userclass[offset] = strlen (optarg); - options->userclass_len += (strlen (optarg)) + 1; - } - break; - case 'x': - sig = SIGTERM; - break; - case 'A': - #ifndef ENABLE_ARP - logger (LOG_ERR, - "arp not compiled into dhcpcd"); - goto abort; - #endif - options->doarp = false; - break; - case 'E': - #ifndef ENABLE_INFO - logger (LOG_ERR, - "info not compiled into dhcpcd"); - goto abort; - #endif - options->dolastlease = true; - break; - case 'F': - if (strncmp (optarg, "none", strlen (optarg)) == 0) - options->fqdn = FQDN_NONE; - else if (strncmp (optarg, "ptr", strlen (optarg)) == 0) - options->fqdn = FQDN_PTR; - else if (strncmp (optarg, "both", strlen (optarg)) == 0) - options->fqdn = FQDN_BOTH; - else { - logger (LOG_ERR, "invalid value `%s' for FQDN", optarg); - goto abort; - } - break; - case 'G': - options->dogateway = false; - break; - case 'H': - options->dohostname++; - break; - case 'I': - if (optarg) { - if (strlen (optarg) > CLIENT_ID_MAX_LEN) { - logger (LOG_ERR, "`%s' is too long for ClientID, max is %d", - optarg, CLIENT_ID_MAX_LEN); - goto abort; - } - if (strlcpy (options->clientid, optarg, - sizeof (options->clientid)) == 0) - /* empty string disabled duid */ - options->doduid = false; - - } else { - memset (options->clientid, 0, sizeof (options->clientid)); - options->doduid = false; - } - break; - case 'L': - options->doipv4ll = false; - break; - case 'M': - options->domtu = false; - break; - case 'N': - options->dontp = false; - break; - case 'R': - options->dodns = false; - break; - case 'S': - options->domscsr++; - break; - case 'T': - #ifndef ENABLE_INFO - logger (LOG_ERR, "info support not compiled into dhcpcd"); - goto abort; - #endif - options->test = true; - options->persistent = true; - break; - case 'Y': - options->donis = false; - break; - case '?': - usage (); - goto abort; - default: - usage (); - goto abort; - } - } - if (doversion) { - printf (""PACKAGE" "VERSION"\n"); - printf ("Compile time options:" - #ifdef ENABLE_ARP - " ARP" - #endif - #ifdef ENABLE_DUID - " DUID" - #endif - #ifdef ENABLE_INFO - " INFO" - #endif - #ifdef ENABLE_INFO_COMPAT - " INFO_COMPAT" - #endif - #ifdef ENABLE_IPV4LL - " IPV4LL" - #endif - #ifdef ENABLE_NIS - " NIS" - #endif - #ifdef ENABLE_NTP - " NTP" - #endif - #ifdef SERVICE - " " SERVICE - #endif - #ifdef ENABLE_RESOLVCONF - " RESOLVCONF" - #endif - #ifdef THERE_IS_NO_FORK - " THERE_IS_NO_FORK" - #endif - "\n"); - } - - if (dohelp) - usage (); + options_t *options; + int userclasses = 0; + int opt; + int option_index = 0; + char *prefix; + pid_t pid; + int debug = 0; + int i; + int pidfd = -1; + int sig = 0; + int retval = EXIT_FAILURE; + + /* Close any un-needed fd's */ + for (i = getdtablesize() - 1; i >= 3; --i) + close (i); + + openlog (PACKAGE, LOG_PID, LOG_LOCAL0); + + options = xzalloc (sizeof (*options)); + options->script = (char *) DEFAULT_SCRIPT; + snprintf (options->classid, CLASS_ID_MAX_LEN, "%s %s", + PACKAGE, VERSION); + + options->doarp = true; + options->dodns = true; + options->domtu = true; + options->donis = true; + options->dontp = true; + options->dogateway = true; + options->daemonise = true; + options->doinform = false; + options->doipv4ll = true; + options->doduid = true; + options->timeout = DEFAULT_TIMEOUT; + /* added by Niklas Goby, additional field, storing the socket address path for + * communicating with Qt "server" + * defined in dhcpcd.h */ + strcpy(options->qtsocketaddress, DEFAULT_QTSOCKETADDRESS); + + gethostname (options->hostname, sizeof (options->hostname)); + if (strcmp (options->hostname, "(none)") == 0 || + strcmp (options->hostname, "localhost") == 0) + memset (options->hostname, 0, sizeof (options->hostname)); + + + /* Don't set any optional arguments here so we retain POSIX + * compatibility with getopt */ + while ((opt = getopt_long(argc, argv, EXTRA_OPTS + "c:dh:i:kl:m:npq:r:s:t:u:xAEF:GHI:LMNRSTY", + longopts, &option_index)) != -1) + { + switch (opt) + { + case 0: + if (longopts[option_index].flag) + break; + logger (LOG_ERR, + "option `%s' should set a flag", + longopts[option_index].name); + goto abort; + case 'c': + options->script = optarg; + break; + case 'd': + debug++; + switch (debug) + { + case 1: + setloglevel (LOG_DEBUG); + break; + case 2: + options->daemonise = false; + break; + } + break; +#ifdef THERE_IS_NO_FORK + case 'f': + options->daemonised = true; + close_fds (); + break; + case 'g': + dhcpcd_skiproutes = xstrdup (optarg); + break; +#endif + case 'h': + if (! optarg) + *options->hostname = '\0'; + else if (strlen (optarg) > MAXHOSTNAMELEN) + { + logger (LOG_ERR, + "`%s' too long for HostName string, max is %d", + optarg, MAXHOSTNAMELEN); + goto abort; + } + else + strlcpy (options->hostname, optarg, + sizeof (options->hostname)); + break; + case 'i': + if (! optarg) + { + *options->classid = '\0'; + } + else if (strlen (optarg) > CLASS_ID_MAX_LEN) + { + logger (LOG_ERR, + "`%s' too long for ClassID string, max is %d", + optarg, CLASS_ID_MAX_LEN); + goto abort; + } + else + strlcpy (options->classid, optarg, + sizeof (options->classid)); + break; + case 'k': + sig = SIGHUP; + break; + case 'l': + if (*optarg == '-') + { + logger (LOG_ERR, + "leasetime must be a positive value"); + goto abort; + } + errno = 0; + options->leasetime = (uint32_t) strtol (optarg, NULL, 0); + if (errno == EINVAL || errno == ERANGE) + { + logger (LOG_ERR, "`%s' out of range", optarg); + goto abort; + } + break; + case 'm': + options->metric = atoint (optarg); + if (options->metric < 0) + { + logger (LOG_ERR, + "metric must be a positive value"); + goto abort; + } + break; + case 'n': + sig = SIGALRM; + break; + case 'p': + options->persistent = true; + break; + case 'q': + if (strlen(optarg) > QTSOCKETADDRESSLENGTH) + { + logger(LOG_ERR, "`%s' too long for an socket address path (max=%d)", + optarg, QTSOCKETADDRESSLENGTH); + goto abort; + } + strlcpy(options->qtsocketaddress, optarg, sizeof(options->qtsocketaddress)); + break; + case 's': + options->doinform = true; + options->doarp = false; + if (! optarg || strlen (optarg) == 0) + { + options->request_address.s_addr = 0; + break; + } + else + { + char *slash = strchr (optarg, '/'); + if (slash) + { + int cidr; + /* nullify the slash, so the -r option can read the + * address */ + *slash++ = '\0'; + if (sscanf (slash, "%d", &cidr) != 1 || + inet_cidrtoaddr (cidr, &options->request_netmask) != 0) + { + logger (LOG_ERR, "`%s' is not a valid CIDR", slash); + goto abort; + } + } + } + /* FALLTHROUGH */ + case 'r': + if (! options->doinform) + options->dorequest = true; + if (strlen (optarg) > 0 && + ! inet_aton (optarg, &options->request_address)) + { + logger (LOG_ERR, "`%s' is not a valid IP address", optarg); + goto abort; + } + break; + case 't': + options->timeout = atoint (optarg); + if (options->timeout < 0) + { + logger (LOG_ERR, "timeout must be a positive value"); + goto abort; + } + break; + case 'u': + { + int offset = 0; + for (i = 0; i < userclasses; i++) + offset += (int) options->userclass[offset] + 1; + if (offset + 1 + strlen (optarg) > USERCLASS_MAX_LEN) + { + logger (LOG_ERR, "userclass overrun, max is %d", + USERCLASS_MAX_LEN); + goto abort; + } + userclasses++; + memcpy (options->userclass + offset + 1 , optarg, strlen (optarg)); + options->userclass[offset] = strlen (optarg); + options->userclass_len += (strlen (optarg)) + 1; + } + break; + case 'x': + sig = SIGTERM; + break; + case 'A': +#ifndef ENABLE_ARP + logger (LOG_ERR, + "arp not compiled into dhcpcd"); + goto abort; +#endif + options->doarp = false; + break; + case 'E': +#ifndef ENABLE_INFO + logger (LOG_ERR, + "info not compiled into dhcpcd"); + goto abort; +#endif + options->dolastlease = true; + break; + case 'F': + if (strncmp (optarg, "none", strlen (optarg)) == 0) + options->fqdn = FQDN_NONE; + else if (strncmp (optarg, "ptr", strlen (optarg)) == 0) + options->fqdn = FQDN_PTR; + else if (strncmp (optarg, "both", strlen (optarg)) == 0) + options->fqdn = FQDN_BOTH; + else + { + logger (LOG_ERR, "invalid value `%s' for FQDN", optarg); + goto abort; + } + break; + case 'G': + options->dogateway = false; + break; + case 'H': + options->dohostname++; + break; + case 'I': + if (optarg) + { + if (strlen (optarg) > CLIENT_ID_MAX_LEN) + { + logger (LOG_ERR, "`%s' is too long for ClientID, max is %d", + optarg, CLIENT_ID_MAX_LEN); + goto abort; + } + if (strlcpy (options->clientid, optarg, + sizeof (options->clientid)) == 0) + /* empty string disabled duid */ + options->doduid = false; + + } + else + { + memset (options->clientid, 0, sizeof (options->clientid)); + options->doduid = false; + } + break; + case 'L': + options->doipv4ll = false; + break; + case 'M': + options->domtu = false; + break; + case 'N': + options->dontp = false; + break; + case 'R': + options->dodns = false; + break; + case 'S': + options->domscsr++; + break; + case 'T': +#ifndef ENABLE_INFO + logger (LOG_ERR, "info support not compiled into dhcpcd"); + goto abort; +#endif + options->test = true; + options->persistent = true; + break; + case 'Y': + options->donis = false; + break; + case '?': + usage (); + goto abort; + default: + usage (); + goto abort; + } + } + if (doversion) + { + printf (""PACKAGE" "VERSION"\n"); + printf ("Compile time options:" +#ifdef ENABLE_ARP + " ARP" +#endif +#ifdef ENABLE_DUID + " DUID" +#endif +#ifdef ENABLE_INFO + " INFO" +#endif +#ifdef ENABLE_INFO_COMPAT + " INFO_COMPAT" +#endif +#ifdef ENABLE_IPV4LL + " IPV4LL" +#endif +#ifdef ENABLE_NIS + " NIS" +#endif +#ifdef ENABLE_NTP + " NTP" +#endif +#ifdef SERVICE + " " SERVICE +#endif +#ifdef ENABLE_RESOLVCONF + " RESOLVCONF" +#endif +#ifdef THERE_IS_NO_FORK + " THERE_IS_NO_FORK" +#endif + "\n"); + } + + if (dohelp) + usage (); #ifdef THERE_IS_NO_FORK - dhcpcd_argv = argv; - dhcpcd_argc = argc; - if (! realpath (argv[0], dhcpcd)) { - logger (LOG_ERR, "unable to resolve the path `%s': %s", - argv[0], strerror (errno)); - goto abort; - } + dhcpcd_argv = argv; + dhcpcd_argc = argc; + if (! realpath (argv[0], dhcpcd)) + { + logger (LOG_ERR, "unable to resolve the path `%s': %s", + argv[0], strerror (errno)); + goto abort; + } #endif - /* initializations for the ipc connection to qt*/ - setSocketName(options->qtsocketaddress); - if (initQtLoggerSocket() < 0) { - logger(LOG_ERR, "initialization Qt Logger failed: %s ", strerror (errno)); - goto abort; - } - - - if (optind < argc) { - if (strlen(argv[optind]) > IF_NAMESIZE) { - logger(LOG_ERR, "`%s' too long for an interface name (max=%d)", - argv[optind], IF_NAMESIZE); - goto abort; - } - strlcpy(options->interface, argv[optind], sizeof(options->interface)); - setInterfaceName(options->interface); - } else { - /* If only version was requested then exit now */ - if (doversion || dohelp) { - retval = 0; - goto abort; - } - - logger(LOG_ERR, "no interface specified"); - setInterfaceName("no_if"); - goto abort; - } - - if (strchr(options->hostname, '.')) { - if (options->fqdn == FQDN_DISABLE) - options->fqdn = FQDN_BOTH; - } else - options->fqdn = FQDN_DISABLE; - - if (options->request_address.s_addr == 0 && options->doinform) { - if ((options->request_address.s_addr = get_address(options->interface)) - != 0) - options->keep_address = true; - } - - if (IN_LINKLOCAL (ntohl (options->request_address.s_addr))) { - logger (LOG_ERR, - "you are not allowed to request a link local address"); - logToQt(LOG_ERR, -1, "you are not allowed to request a link local address"); - goto abort; - } - - if (geteuid ()) { - logger (LOG_WARNING, PACKAGE " will not work correctly unless" - " run as root"); - } - - prefix = xmalloc (sizeof (char) * (IF_NAMESIZE + 3)); - snprintf (prefix, IF_NAMESIZE, "%s: ", options->interface); - setlogprefix (prefix); - snprintf (options->pidfile, sizeof (options->pidfile), PIDFILE, - options->interface); - free (prefix); - - chdir ("/"); - umask (022); - - if (mkdir (INFODIR, S_IRUSR | S_IWUSR |S_IXUSR | S_IRGRP | S_IXGRP - | S_IROTH | S_IXOTH) && errno != EEXIST) - { - logger (LOG_ERR, - "mkdir(\"%s\",0): %s\n", INFODIR, strerror (errno)); - goto abort; - } - - if (mkdir (ETCDIR, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP - | S_IROTH | S_IXOTH) && errno != EEXIST) - { - logger (LOG_ERR, - "mkdir(\"%s\",0): %s\n", ETCDIR, strerror (errno)); - goto abort; - } - - if (options->test) { - if (options->dorequest || options->doinform) { - logger (LOG_ERR, - "cannot test with --inform or --request"); - goto abort; - } - - if (options->dolastlease) { - logger (LOG_ERR, "cannot test with --lastlease"); - goto abort; - } - - if (sig != 0) { - logger (LOG_ERR, - "cannot test with --release or --renew"); - goto abort; - } - } - - if (sig != 0) { - int killed = -1; - pid = read_pid (options->pidfile); - if (pid != 0) - logger (LOG_INFO, "sending signal %d to pid %d", - sig, pid); - - if (! pid || (killed = kill (pid, sig))) - logger (sig == SIGALRM ? LOG_INFO : LOG_ERR, - ""PACKAGE" not running"); - - if (pid != 0 && (sig != SIGALRM || killed != 0)) - unlink (options->pidfile); - - if (killed == 0) { - retval = EXIT_SUCCESS; - goto abort; - } - - if (sig != SIGALRM) - goto abort; - } - - if (! options->test && ! options->daemonised) { - if ((pid = read_pid (options->pidfile)) > 0 && - kill (pid, 0) == 0) - { - logger (LOG_ERR, ""PACKAGE - " already running on pid %d (%s)", - pid, options->pidfile); - goto abort; - } - - pidfd = open (options->pidfile, - O_WRONLY | O_CREAT | O_NONBLOCK, 0664); - if (pidfd == -1) { - logger (LOG_ERR, "open `%s': %s", - options->pidfile, strerror (errno)); - goto abort; - } - - /* Lock the file so that only one instance of dhcpcd runs - * on an interface */ - if (flock (pidfd, LOCK_EX | LOCK_NB) == -1) { - logger (LOG_ERR, "flock `%s': %s", - options->pidfile, strerror (errno)); - goto abort; - } - - /* dhcpcd.sh should not interhit this fd */ - if ((i = fcntl (pidfd, F_GETFD, 0)) == -1 || - fcntl (pidfd, F_SETFD, i | FD_CLOEXEC) == -1) - logger (LOG_ERR, "fcntl: %s", strerror (errno)); - - writepid (pidfd, getpid ()); - logger (LOG_INFO, PACKAGE " " VERSION " starting"); - } - - /* Seed random */ - srandomdev (); - - /* Massage our filters per platform */ - setup_packet_filters (); - - /* dhcp_run : defined in client.c */ - if (dhcp_run (options, &pidfd) == 0) - retval = EXIT_SUCCESS; + /* initializations for the ipc connection to qt*/ + setSocketName(options->qtsocketaddress); + if (initQtLoggerSocket() < 0) + { + logger(LOG_ERR, "initialization Qt Logger failed: %s ", strerror (errno)); + goto abort; + } + + + if (optind < argc) + { + if (strlen(argv[optind]) > IF_NAMESIZE) + { + logger(LOG_ERR, "`%s' too long for an interface name (max=%d)", + argv[optind], IF_NAMESIZE); + goto abort; + } + strlcpy(options->interface, argv[optind], sizeof(options->interface)); + setInterfaceName(options->interface); + } + else + { + /* If only version was requested then exit now */ + if (doversion || dohelp) + { + retval = 0; + goto abort; + } + + logger(LOG_ERR, "no interface specified"); + setInterfaceName("no_if"); + goto abort; + } + + if (strchr(options->hostname, '.')) + { + if (options->fqdn == FQDN_DISABLE) + options->fqdn = FQDN_BOTH; + } + else + options->fqdn = FQDN_DISABLE; + + if (options->request_address.s_addr == 0 && options->doinform) + { + if ((options->request_address.s_addr = get_address(options->interface)) + != 0) + options->keep_address = true; + } + + if (IN_LINKLOCAL (ntohl (options->request_address.s_addr))) + { + logger (LOG_ERR, + "you are not allowed to request a link local address"); + logToQt(LOG_ERR, -1, "you are not allowed to request a link local address"); + goto abort; + } + + if (geteuid ()) + { + logger (LOG_WARNING, PACKAGE " will not work correctly unless" + " run as root"); + } + + prefix = xmalloc (sizeof (char) * (IF_NAMESIZE + 3)); + snprintf (prefix, IF_NAMESIZE, "%s: ", options->interface); + setlogprefix (prefix); + snprintf (options->pidfile, sizeof (options->pidfile), PIDFILE, + options->interface); + free (prefix); + + chdir ("/"); + umask (022); + + if (mkdir (INFODIR, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP + | S_IROTH | S_IXOTH) && errno != EEXIST) + { + logger (LOG_ERR, + "mkdir(\"%s\",0): %s\n", INFODIR, strerror (errno)); + goto abort; + } + + if (mkdir (ETCDIR, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP + | S_IROTH | S_IXOTH) && errno != EEXIST) + { + logger (LOG_ERR, + "mkdir(\"%s\",0): %s\n", ETCDIR, strerror (errno)); + goto abort; + } + + if (options->test) + { + if (options->dorequest || options->doinform) + { + logger (LOG_ERR, + "cannot test with --inform or --request"); + goto abort; + } + + if (options->dolastlease) + { + logger (LOG_ERR, "cannot test with --lastlease"); + goto abort; + } + + if (sig != 0) + { + logger (LOG_ERR, + "cannot test with --release or --renew"); + goto abort; + } + } + + if (sig != 0) + { + int killed = -1; + pid = read_pid (options->pidfile); + if (pid != 0) + logger (LOG_INFO, "sending signal %d to pid %d", + sig, pid); + + if (! pid || (killed = kill (pid, sig))) + logger (sig == SIGALRM ? LOG_INFO : LOG_ERR, + ""PACKAGE" not running"); + + if (pid != 0 && (sig != SIGALRM || killed != 0)) + unlink (options->pidfile); + + if (killed == 0) + { + retval = EXIT_SUCCESS; + goto abort; + } + + if (sig != SIGALRM) + goto abort; + } + + if (! options->test && ! options->daemonised) + { + if ((pid = read_pid (options->pidfile)) > 0 && + kill (pid, 0) == 0) + { + logger (LOG_ERR, ""PACKAGE + " already running on pid %d (%s)", + pid, options->pidfile); + goto abort; + } + + pidfd = open (options->pidfile, + O_WRONLY | O_CREAT | O_NONBLOCK, 0664); + if (pidfd == -1) + { + logger (LOG_ERR, "open `%s': %s", + options->pidfile, strerror (errno)); + goto abort; + } + + /* Lock the file so that only one instance of dhcpcd runs + * on an interface */ + if (flock (pidfd, LOCK_EX | LOCK_NB) == -1) + { + logger (LOG_ERR, "flock `%s': %s", + options->pidfile, strerror (errno)); + goto abort; + } + + /* dhcpcd.sh should not interhit this fd */ + if ((i = fcntl (pidfd, F_GETFD, 0)) == -1 || + fcntl (pidfd, F_SETFD, i | FD_CLOEXEC) == -1) + logger (LOG_ERR, "fcntl: %s", strerror (errno)); + + writepid (pidfd, getpid ()); + logger (LOG_INFO, PACKAGE " " VERSION " starting"); + } + + /* Seed random */ + srandomdev (); + + /* Massage our filters per platform */ + setup_packet_filters (); + + /* dhcp_run : defined in client.c */ + if (dhcp_run (options, &pidfd) == 0) + retval = EXIT_SUCCESS; abort: - /* If we didn't daemonise then we need to punt the pidfile now */ - if (pidfd > -1) { - close (pidfd); - unlink (options->pidfile); - } + /* If we didn't daemonise then we need to punt the pidfile now */ + if (pidfd > -1) + { + close (pidfd); + unlink (options->pidfile); + } - free (options); + free (options); #ifdef THERE_IS_NO_FORK - /* There may have been an error before the dhcp_run function - * clears this, so just do it here to be safe */ - free (dhcpcd_skiproutes); + /* There may have been an error before the dhcp_run function + * clears this, so just do it here to be safe */ + free (dhcpcd_skiproutes); #endif - logger (LOG_INFO, "exiting"); - logToQt(LOG_INFO, DHCPCD_EXIT, "exiting due abort"); - closeQtLoggerSocket(); - exit (retval); - /* NOTREACHED */ + logger (LOG_INFO, "exiting"); + logToQt(LOG_INFO, DHCPCD_EXIT, "exiting due abort"); + closeQtLoggerSocket(); + exit (retval); + /* NOTREACHED */ } |