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libgtpnl
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tools: gtp-tunnel: add IPv6 support 

This breaks backward compatibility, but this tool is intended for
testing purpose.
This commit is contained in:
Pablo Neira Ayuso 2023-03-30 22:15:10 +02:00 committed by Harald Welte
parent 9dc34d498a
commit 6d6e723a90
1 changed files with 49 additions and 13 deletions
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62
tools/gtp-tunnel.c
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@ -43,22 +43,29 @@
static void add_usage(const char *name)
{
printf("%s add <gtp device> <v0> <tid> <ms-addr> <sgsn-addr>\n",
printf("%s add <gtp device> <v0> <tid> <family> <ms-addr> <sgsn-addr>\n",
name);
printf("%s add <gtp device> <v1> <i_tei> <o_tei> <ms-addr> <sgsn-addr>\n",
printf("%s add <gtp device> <v1> <i_tei> <o_tei> <family> <ms-addr> <sgsn-addr>\n",
name);
}
static int
add_tunnel(int argc, char *argv[], int genl_id, struct mnl_socket *nl)
{
union {
struct in_addr addr;
struct in6_addr addr6;
} ms;
union {
struct in_addr addr;
struct in6_addr addr6;
} sgsn;
struct gtp_tunnel *t;
uint32_t gtp_ifidx;
struct in_addr ms, sgsn;
uint32_t gtp_version;
int optidx;
uint32_t gtp_ifidx;
int optidx, family;
if (argc < 7 || argc > 8) {
if (argc < 8 || argc > 9) {
add_usage(argv[0]);
return EXIT_FAILURE;
}
@ -95,17 +102,46 @@ add_tunnel(int argc, char *argv[], int genl_id, struct mnl_socket *nl)
gtp_tunnel_set_o_tei(t, atoi(argv[optidx++]));
}
if (inet_aton(argv[optidx++], &ms) < 0) {
perror("bad address for ms");
exit(EXIT_FAILURE);
if (!strcmp(argv[optidx], "ip")) {
family = AF_INET;
} else if (!strcmp(argv[optidx], "ip6")) {
family = AF_INET6;
} else {
fprintf(stderr, "wrong family `%s', expecting `ip' or `ip6'\n", argv[optidx]);
return EXIT_FAILURE;
}
gtp_tunnel_set_ms_ip4(t, &ms);
if (inet_aton(argv[optidx++], &sgsn) < 0) {
perror("bad address for sgsn");
gtp_tunnel_set_family(t, family);
optidx++;
if (inet_pton(family, argv[optidx++], &ms) <= 0) {
fprintf(stderr, "bad address for ms\n");
exit(EXIT_FAILURE);
}
gtp_tunnel_set_sgsn_ip4(t, &sgsn);
switch (family) {
case AF_INET:
gtp_tunnel_set_ms_ip4(t, &ms.addr);
break;
case AF_INET6:
gtp_tunnel_set_ms_ip6(t, &ms.addr6);
break;
}
if (inet_pton(family, argv[optidx++], &sgsn) <= 0) {
fprintf(stderr, "bad address for sgsn\n");
exit(EXIT_FAILURE);
}
switch (family) {
case AF_INET:
gtp_tunnel_set_sgsn_ip4(t, &sgsn.addr);
break;
case AF_INET6:
gtp_tunnel_set_sgsn_ip6(t, &sgsn.addr6);
break;
}
gtp_add_tunnel(genl_id, nl, t);