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rtnlutil: Add parser for IPv6 RTNL packet

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At this time, we are only looking for IFA_ADDRESS attribute that
represents the IPv6 IP address.
This commit is contained in:
Tim Kourt 2019-09-27 12:52:22 -07:00 committed by Denis Kenzior
parent d954eee0cc
commit c8eb33c2c2
2 changed files with 33 additions and 0 deletions
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30
src/rtnlutil.c
View File

@ -418,3 +418,33 @@ uint32_t rtnl_route_ipv4_add_gateway(struct l_netlink *rtnl, int ifindex,
gateway, src, priority_offset, proto, cb,
user_data, destroy);
}
void rtnl_ifaddr_ipv6_extract(const struct ifaddrmsg *ifa, int len, char **ip)
{
struct in6_addr in6_addr;
struct rtattr *attr;
char address[128];
for (attr = IFA_RTA(ifa); RTA_OK(attr, len);
attr = RTA_NEXT(attr, len)) {
switch (attr->rta_type) {
case IFA_ADDRESS:
if (!ip)
break;
memcpy(&in6_addr.s6_addr, RTA_DATA(attr),
sizeof(in6_addr.s6_addr));
if (!inet_ntop(AF_INET6, &in6_addr, address,
INET6_ADDRSTRLEN)) {
l_error("rtnl: Failed to extract IPv6 address");
break;
}
*ip = l_strdup(address);
break;
}
}
}

3
src/rtnlutil.h
View File

@ -67,3 +67,6 @@ uint32_t rtnl_route_ipv4_add_gateway(struct l_netlink *rtnl, int ifindex,
l_netlink_command_func_t cb,
void *user_data,
l_netlink_destroy_func_t destroy);
void rtnl_ifaddr_ipv6_extract(const struct ifaddrmsg *ifa, int bytes,
char **ip);