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netlink: Use struct in_addr for IPv4 addresses, not bare uint32_t

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This improves consistency with IPv6 and makes it harder to misuse these as
some other sort of value.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2023-08-03 17:19:43 +10:00 committed by Stefano Brivio
parent 257a6b0b7e
commit cfe7509e5c
1 changed files with 6 additions and 6 deletions
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12
netlink.c
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@ -265,9 +265,9 @@ void nl_route_set_def(unsigned int ifi, sa_family_t af, void *gw)
} r6;
struct {
struct rtattr rta_dst;
uint32_t d;
struct in_addr d;
struct rtattr rta_gw;
uint32_t a;
struct in_addr a;
} r4;
} set;
} req = {
@ -309,7 +309,7 @@ void nl_route_set_def(unsigned int ifi, sa_family_t af, void *gw)
req.set.r4.rta_dst.rta_type = RTA_DST;
req.set.r4.rta_dst.rta_len = rta_len;
req.set.r4.a = *(uint32_t *)gw;
memcpy(&req.set.r4.a, gw, sizeof(req.set.r4.a));
req.set.r4.rta_gw.rta_type = RTA_GATEWAY;
req.set.r4.rta_gw.rta_len = rta_len;
}
@ -470,9 +470,9 @@ void nl_addr_set(unsigned int ifi, sa_family_t af, void *addr, int prefix_len)
union {
struct {
struct rtattr rta_l;
uint32_t l;
struct in_addr l;
struct rtattr rta_a;
uint32_t a;
struct in_addr a;
} a4;
struct {
struct rtattr rta_l;
@ -516,7 +516,7 @@ void nl_addr_set(unsigned int ifi, sa_family_t af, void *addr, int prefix_len)
req.nlh.nlmsg_len = offsetof(struct req_t, set.a4)
+ sizeof(req.set.a4);
req.set.a4.l = req.set.a4.a = *(uint32_t *)addr;
memcpy(&req.set.a4.l, addr, sizeof(req.set.a4.l));
req.set.a4.rta_l.rta_len = rta_len;
req.set.a4.rta_l.rta_type = IFA_LOCAL;
req.set.a4.rta_a.rta_len = rta_len;