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rtnl-addr: Fix invalid call to nl_addr_set_prefixlen() if neither local or peer address are present

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Signed-off-by: Thomas Graf <tgraf@suug.ch>
This commit is contained in:
Thomas Graf 2013-03-14 18:57:15 +01:00
parent 549d26dc87
commit b39c9f7a53
1 changed files with 7 additions and 4 deletions
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11
lib/route/addr.c
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@ -199,8 +199,9 @@ static int addr_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
struct rtnl_addr *addr;
struct ifaddrmsg *ifa;
struct nlattr *tb[IFA_MAX+1];
int err, peer_prefix = 0, family;
int err, family;
struct nl_cache *link_cache;
struct nl_addr *plen_addr = NULL;
addr = rtnl_addr_alloc();
if (!addr)
@ -244,6 +245,7 @@ static int addr_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
if (!addr->a_local)
goto errout_nomem;
addr->ce_mask |= ADDR_ATTR_LOCAL;
plen_addr = addr->a_local;
}
if (tb[IFA_ADDRESS]) {
@ -263,12 +265,13 @@ static int addr_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
} else {
addr->a_peer = a;
addr->ce_mask |= ADDR_ATTR_PEER;
peer_prefix = 1;
}
plen_addr = a;
}
nl_addr_set_prefixlen(peer_prefix ? addr->a_peer : addr->a_local,
addr->a_prefixlen);
if (plen_addr)
nl_addr_set_prefixlen(plen_addr, addr->a_prefixlen);
/* IPv4 only */
if (tb[IFA_BROADCAST]) {