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TAP_

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- Cleaned up a little bit
- The `mtu` (on Luinux) must be `1280` of greater, else IPv6 won't work (and the address will not be allowed to be added)
This commit is contained in:
Tristan Brice Velloza Kildaire 2024-12-15 17:44:29 +02:00
parent ec9f6365d7
commit 4b0e006139
1 changed files with 19 additions and 10 deletions
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29
TAP.c
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@ -13,6 +13,7 @@ extern bool verbose;
extern bool noipv6;
extern bool set_ipv4;
extern bool set_ipv6;
extern bool link_local_v6;
extern bool set_netmask;
extern bool noup;
extern int mtu;
@ -99,30 +100,38 @@ void trySixSet
interfaceIndex
);
if(mtu < 1280)
{
printf("MTU must be 1280 bytes or more for IPv6\n");
cleanup();
exit(1);
}
int dummySock = socket(AF_INET6, SOCK_DGRAM, 0);
struct in6_ifreq paramReq;
memset(&paramReq, 0, sizeof(struct in6_ifreq));
paramReq.ifr6_ifindex = interfaceIndex;
printf("paramReq.ifr6_ifindex: %d\n", paramReq.ifr6_ifindex);
paramReq.ifr6_prefixlen = prefixLen;
paramReq.ifr6_addr = address;
// Try add the address
if(ioctl(dummySock, SIOCSIFADDR, &paramReq) < 0)
{
// perror("Fokop");
printf("Fokop\n");
printf
(
"There was an errror assigning address '%s/%d' to if_index %d\n",
ip_str,
prefixLen,
interfaceIndex
);
cleanup();
close(dummySock);
exit(1);
}
printf("Sucessfully applied IPv6 configuration");
printf("Address '%s/%d' added\n", ip_str, prefixLen);
close(dummySock);
}
@ -306,7 +315,7 @@ int open_tap(void) {
}
}
if(set_ipv6) {
if(set_ipv6 || link_local_v6) {
printf("TODO: Implement set ipv6\n");
// Firstly, obtain the interface index by `ifr_name`
@ -363,7 +372,7 @@ int open_tap(void) {
// FIXME: Allow the ipv6 to be empty and just do link-local
printf("IPv6 settings SHOULD be done now\n");
printf("IPv6 configuration done\n");
}
}
}