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osmo-ggsn
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Support for external ipup script

This commit is contained in:
jjako 2003-01-28 16:13:57 +00:00
parent 0511e22c9e
commit 4b26b51bf0
4 changed files with 107 additions and 12 deletions
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70
ggsn/cmdline.c
View File

@ -1,7 +1,7 @@
/*
File autogenerated by gengetopt version 2.8
File autogenerated by gengetopt version 2.8rc
generated with the following command:
gengetopt --conf-parser
../../gengetopt-2.8rc/src/gengetopt --conf-parser
The developers of gengetopt consider the fixed text that goes in all
gengetopt output files to be in the public domain:
@ -55,6 +55,8 @@ cmdline_parser_print_help (void)
printf(" --timelimit=INT Exit after timelimit seconds (default='0')\n");
printf(" -aSTRING --apn=STRING Access point name (default='internet')\n");
printf(" -qINT --qos=INT Requested quality of service (default='0x0b921f')\n");
printf(" --ipup=STRING Script to run after link-up\n");
printf(" --ipdown=STRING Script to run after link-down\n");
}
@ -91,6 +93,8 @@ cmdline_parser (int argc, char * const *argv, struct gengetopt_args_info *args_i
args_info->timelimit_given = 0 ;
args_info->apn_given = 0 ;
args_info->qos_given = 0 ;
args_info->ipup_given = 0 ;
args_info->ipdown_given = 0 ;
#define clear_args() { \
args_info->fg_flag = 0;\
args_info->debug_flag = 0;\
@ -103,6 +107,8 @@ cmdline_parser (int argc, char * const *argv, struct gengetopt_args_info *args_i
args_info->timelimit_arg = 0 ;\
args_info->apn_arg = strdup("internet") ;\
args_info->qos_arg = 0x0b921f ;\
args_info->ipup_arg = NULL; \
args_info->ipdown_arg = NULL; \
}
clear_args();
@ -130,6 +136,8 @@ cmdline_parser (int argc, char * const *argv, struct gengetopt_args_info *args_i
{ "timelimit", 1, NULL, 0 },
{ "apn", 1, NULL, 'a' },
{ "qos", 1, NULL, 'q' },
{ "ipup", 1, NULL, 0 },
{ "ipdown", 1, NULL, 0 },
{ NULL, 0, NULL, 0 }
};
@ -280,6 +288,32 @@ cmdline_parser (int argc, char * const *argv, struct gengetopt_args_info *args_i
args_info->timelimit_arg = strtol (optarg,&stop_char,0);
break;
}
/* Script to run after link-up. */
else if (strcmp (long_options[option_index].name, "ipup") == 0)
{
if (args_info->ipup_given)
{
fprintf (stderr, "%s: `--ipup' option given more than once\n", PACKAGE);
clear_args ();
exit (EXIT_FAILURE);
}
args_info->ipup_given = 1;
args_info->ipup_arg = strdup (optarg);
break;
}
/* Script to run after link-down. */
else if (strcmp (long_options[option_index].name, "ipdown") == 0)
{
if (args_info->ipdown_given)
{
fprintf (stderr, "%s: `--ipdown' option given more than once\n", PACKAGE);
clear_args ();
exit (EXIT_FAILURE);
}
args_info->ipdown_given = 1;
args_info->ipdown_arg = strdup (optarg);
break;
}
case '?': /* Invalid option. */
/* `getopt_long' already printed an error message. */
@ -515,6 +549,38 @@ cmdline_parser_configfile (char * const filename, struct gengetopt_args_info *ar
}
continue;
}
if (!strcmp(fopt, "ipup"))
{
if (override || !args_info->ipup_given)
{
args_info->ipup_given = 1;
if (fnum == 2)
args_info->ipup_arg = strdup (farg);
else
{
fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
filename, line_num);
exit (EXIT_FAILURE);
}
}
continue;
}
if (!strcmp(fopt, "ipdown"))
{
if (override || !args_info->ipdown_given)
{
args_info->ipdown_given = 1;
if (fnum == 2)
args_info->ipdown_arg = strdup (farg);
else
{
fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
filename, line_num);
exit (EXIT_FAILURE);
}
}
continue;
}
/* Tried all known options. This one is unknown! */

4
ggsn/cmdline.ggo
View File

@ -27,3 +27,7 @@ option "timelimit" - "Exit after timelimit seconds" int default="0" no
option "apn" a "Access point name" string default="internet" no
option "qos" q "Requested quality of service" int default="0x0b921f" no
option "ipup" - "Script to run after link-up" string no
option "ipdown" - "Script to run after link-down" string no

6
ggsn/cmdline.h
View File

@ -1,6 +1,6 @@
/* cmdline.h */
/* File autogenerated by gengetopt version 2.8 */
/* File autogenerated by gengetopt version 2.8rc */
#ifndef _cmdline_h
#define _cmdline_h
@ -31,6 +31,8 @@ struct gengetopt_args_info
int timelimit_arg; /* Exit after timelimit seconds (default='0'). */
char * apn_arg; /* Access point name (default='internet'). */
int qos_arg; /* Requested quality of service (default='0x0b921f'). */
char * ipup_arg; /* Script to run after link-up. */
char * ipdown_arg; /* Script to run after link-down. */
int help_given ; /* Whether help was given. */
int version_given ; /* Whether version was given. */
@ -45,6 +47,8 @@ struct gengetopt_args_info
int timelimit_given ; /* Whether timelimit was given. */
int apn_given ; /* Whether apn was given. */
int qos_given ; /* Whether qos was given. */
int ipup_given ; /* Whether ipup was given. */
int ipdown_given ; /* Whether ipdown was given. */
} ;

39
ggsn/ggsn.c
View File

@ -61,6 +61,7 @@ int maxfd = 0; /* For select() */
int tun_fd = -1; /* Network file descriptor */
struct tun_t *tun; /* TUN instance */
struct in_addr net, mask; /* Network interface */
char *ipup, *ipdown; /* Filename of scripts */
int debug; /* Print debug output */
@ -175,16 +176,26 @@ int create_tun() {
exit(1);
}
strncpy(snet, inet_ntoa(net), 100);
strncpy(smask, inet_ntoa(mask), 100);
strncpy(snet, inet_ntoa(net), sizeof(snet));
snet[sizeof(snet)-1] = 0;
strncpy(smask, inet_ntoa(mask), sizeof(smask));
smask[sizeof(smask)-1] = 0;
sprintf(buf, "/sbin/ifconfig %s %s mtu 1450 netmask %s",
snprintf(buf, sizeof(buf), "/sbin/ifconfig %s %s mtu 1450 netmask %s",
tun->devname, snet, smask);
buf[sizeof(buf)-1] = 0;
if (debug) printf("%s\n", buf);
system(buf);
system("echo 1 > /proc/sys/net/ipv4/ip_forward");
if (ipup) {
/* system("ipup /dev/tun0 192.168.0.10"); */
snprintf(buf, sizeof(buf), "%s %s %s %s",
ipup, tun->devname, snet, smask);
buf[sizeof(buf)-1] = 0;
if (debug) printf("%s\n", buf);
system(buf);
}
return 0;
}
@ -249,6 +260,8 @@ int main(int argc, char **argv)
printf("apn: %s\n", args_info.apn_arg);
printf("net: %s\n", args_info.net_arg);
printf("mask: %s\n", args_info.mask_arg);
printf("ipup: %s\n", args_info.ipup_arg);
printf("ipdown: %s\n", args_info.ipdown_arg);
printf("pidfile: %s\n", args_info.pidfile_arg);
printf("statedir: %s\n", args_info.statedir_arg);
printf("timelimit: %d\n", args_info.timelimit_arg);
@ -268,6 +281,8 @@ int main(int argc, char **argv)
printf("apn: %s\n", args_info.apn_arg);
printf("net: %s\n", args_info.net_arg);
printf("mask: %s\n", args_info.mask_arg);
printf("ipup: %s\n", args_info.ipup_arg);
printf("ipdown: %s\n", args_info.ipdown_arg);
printf("pidfile: %s\n", args_info.pidfile_arg);
printf("statedir: %s\n", args_info.statedir_arg);
printf("timelimit: %d\n", args_info.timelimit_arg);
@ -342,6 +357,12 @@ int main(int argc, char **argv)
}
}
/* ipup */
ipup = args_info.ipup_arg;
/* ipdown */
ipdown = args_info.ipdown_arg;
/* Timelimit */
timelimit = args_info.timelimit_arg;
starttime = time(NULL);
@ -354,14 +375,14 @@ int main(int argc, char **argv)
qos.v[0] = ((args_info.qos_arg) >> 16) & 0xff;
/* apn */
if (strlen(args_info.apn_arg)>255) {
if (strlen(args_info.apn_arg)>(sizeof(apnh)-1)) {
printf("invalid APN\n");
exit(1);
}
apn.l = strlen(args_info.apn_arg) + 1;
apn.v = apnh;
apn.v[0] = (char) strlen(args_info.apn_arg);
strncpy(&apn.v[1], args_info.apn_arg, 255);
strncpy(&apn.v[1], args_info.apn_arg, (sizeof(apnh)-1));
if (debug) printf("gtpclient: Initialising GTP tunnel\n");
@ -410,11 +431,11 @@ int main(int argc, char **argv)
if (gtpfd != -1 && FD_ISSET(gtpfd, &fds) &&
gtp_decaps(gsn) < 0) {
syslog(LOG_ERR, "GTP read failed (gre)=(%d)", gtpfd);
syslog(LOG_ERR, "GTP read failed (gtpfd)=(%d)", gtpfd);
}
}
}
gtp_free(gsn);