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| author | Stefano Brivio <sbrivio@redhat.com> | 2021-10-19 09:01:27 +0200 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2021-10-19 09:01:27 +0200 |
| commit | 17600d6d6ef0edf60bbf64c5bef594a8a07547cc (patch) | |
| tree | 7985a9dde7c81ba098296fdcfe63c070b4e36253 /netlink.c | |
| parent | 1ac0d52820e0cfd6c7f301e3f5d5717cda4dea88 (diff) | |
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netlink, conf: Actually get prefix/mask length
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'netlink.c')
| -rw-r--r-- | netlink.c | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -346,10 +346,11 @@ next: * @ifi: Interface index * @af: Address family * @addr: Global address to fill if zero, to set if not, ignored if NULL + * @prefix_len: Mask or prefix length, set or fetched (for IPv4) * @addr_l: Link-scoped address to fill, NULL if not requested */ void nl_addr(int ns, unsigned int ifi, sa_family_t af, - void *addr, int prefix_len, void *addr_l) + void *addr, int *prefix_len, void *addr_l) { int set = addr && ((af == AF_INET6 && !IN6_IS_ADDR_UNSPECIFIED(addr)) || (af == AF_INET && *(uint32_t *)addr)); @@ -380,7 +381,7 @@ void nl_addr(int ns, unsigned int ifi, sa_family_t af, .ifa.ifa_family = af, .ifa.ifa_index = ifi, - .ifa.ifa_prefixlen = prefix_len, + .ifa.ifa_prefixlen = *prefix_len, }; struct ifaddrmsg *ifa; struct nlmsghdr *nh; @@ -430,12 +431,14 @@ void nl_addr(int ns, unsigned int ifi, sa_family_t af, if (rta->rta_type != IFA_ADDRESS) continue; - if (af == AF_INET && addr && !*(uint32_t *)addr) + if (af == AF_INET && addr && !*(uint32_t *)addr) { memcpy(addr, RTA_DATA(rta), RTA_PAYLOAD(rta)); - else if (af == AF_INET6 && addr && + *prefix_len = ifa->ifa_prefixlen; + } else if (af == AF_INET6 && addr && ifa->ifa_scope == RT_SCOPE_UNIVERSE && - IN6_IS_ADDR_UNSPECIFIED(addr)) + IN6_IS_ADDR_UNSPECIFIED(addr)) { memcpy(addr, RTA_DATA(rta), RTA_PAYLOAD(rta)); + } if (addr_l && af == AF_INET6 && ifa->ifa_scope == RT_SCOPE_LINK && |