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delete routes and ipv6 interface address in linux as well

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This commit is contained in:
Nikos Mavrogiannopoulos
2015-04-16 13:22:57 +03:00
parent 9e9fdf180e
commit 0885a65d5e
1 changed files with 86 additions and 20 deletions
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106
src/tun.c
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@@ -151,6 +151,61 @@ int set_ipv6_addr(main_server_st * s, struct proc_st *proc)
return ret;
}
static void reset_ipv6_addr(struct proc_st *proc)
{
int fd, ret;
struct in6_ifreq ifr6;
struct in6_rtmsg rt6;
struct ifreq ifr;
unsigned idx;
if (proc->ipv6 == NULL || proc->ipv6->lip_len == 0)
return;
fd = socket(AF_INET6, SOCK_STREAM, 0);
if (fd == -1) {
return;
}
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, proc->tun_lease.name, IFNAMSIZ);
ret = ioctl(fd, SIOGIFINDEX, &ifr);
if (ret != 0) {
goto cleanup;
}
idx = ifr.ifr_ifindex;
memset(&ifr6, 0, sizeof(ifr6));
memcpy(&ifr6.ifr6_addr, SA_IN6_P(&proc->ipv6->lip),
SA_IN_SIZE(proc->ipv6->lip_len));
ifr6.ifr6_ifindex = idx;
ifr6.ifr6_prefixlen = 128;
ret = ioctl(fd, SIOCDIFADDR, &ifr6);
if (ret != 0) {
goto cleanup;
}
/* route to our remote address */
memset(&rt6, 0, sizeof(rt6));
memcpy(&rt6.rtmsg_dst, SA_IN6_P(&proc->ipv6->rip),
SA_IN_SIZE(proc->ipv6->rip_len));
rt6.rtmsg_ifindex = idx;
rt6.rtmsg_dst_len = 128;
rt6.rtmsg_metric = 1;
ret = ioctl(fd, SIOCDELRT, &rt6);
if (ret != 0) {
goto cleanup;
}
cleanup:
close(fd);
}
#elif defined(SIOCAIFADDR_IN6)
#include <netinet6/nd6.h>
@@ -220,6 +275,31 @@ int set_ipv6_addr(main_server_st * s, struct proc_st *proc)
return ret;
}
static void reset_ipv6_addr(struct proc_st *proc)
{
struct in6_ifreq ifr6;
int fd;
if (proc->ipv6 == NULL || proc->ipv6->lip_len == 0)
return;
fd = socket(AF_INET6, SOCK_DGRAM, 0);
if (fd >= 0) {
memset(&ifr6, 0, sizeof(ifr6));
strlcpy(ifr6.ifr_name, proc->tun_lease.name, IFNAMSIZ);
memcpy(&ifr6.ifr_addr.sin6_addr, SA_IN6_P(&proc->ipv6->lip),
SA_IN_SIZE(proc->ipv6->lip_len));
ifr6.ifr_addr.sin6_len = sizeof(struct sockaddr_in6);
ifr6.ifr_addr.sin6_family = AF_INET6;
ioctl(fd, SIOCDIFADDR_IN6, &ifr6);
close(fd);
}
}
#else
#warning "No IPv6 support on this platform"
static int set_ipv6_addr(main_server_st * s, struct proc_st *proc)
@@ -227,6 +307,11 @@ static int set_ipv6_addr(main_server_st * s, struct proc_st *proc)
return -1;
}
static void reset_ipv6_addr(struct proc_st *proc)
{
return;
}
#endif
static int set_network_info(main_server_st * s, struct proc_st *proc)
@@ -570,26 +655,7 @@ void reset_tun(struct proc_st* proc)
}
#endif
#ifdef SIOCDIFADDR_IN6
if (proc->ipv6 && proc->ipv6->lip_len > 0) {
int fd = socket(AF_INET6, SOCK_DGRAM, 0);
if (fd >= 0) {
struct in6_ifreq ifr6;
memset(&ifr6, 0, sizeof(ifr6));
strlcpy(ifr6.ifr_name, proc->tun_lease.name, IFNAMSIZ);
memcpy(&ifr6.ifr_addr.sin6_addr, SA_IN6_P(&proc->ipv6->lip),
SA_IN_SIZE(proc->ipv6->lip_len));
ifr6.ifr_addr.sin6_len = sizeof(struct sockaddr_in6);
ifr6.ifr_addr.sin6_family = AF_INET6;
ioctl(fd, SIOCDIFADDR_IN6, &ifr6);
close(fd);
}
}
#endif
reset_ipv6_addr(proc);
}
}