diff options
Diffstat (limited to 'net/tipc/udp_media.c')
| -rw-r--r-- | net/tipc/udp_media.c | 44 |
1 files changed, 23 insertions, 21 deletions
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c index d63a911e7fe2..c9cf2be3674a 100644 --- a/net/tipc/udp_media.c +++ b/net/tipc/udp_media.c @@ -48,19 +48,12 @@ #include <linux/tipc_netlink.h> #include "core.h" #include "bearer.h" +#include "netlink.h" /* IANA assigned UDP port */ #define UDP_PORT_DEFAULT 6118 -#define UDP_MIN_HEADROOM 28 - -static const struct nla_policy tipc_nl_udp_policy[TIPC_NLA_UDP_MAX + 1] = { - [TIPC_NLA_UDP_UNSPEC] = {.type = NLA_UNSPEC}, - [TIPC_NLA_UDP_LOCAL] = {.type = NLA_BINARY, - .len = sizeof(struct sockaddr_storage)}, - [TIPC_NLA_UDP_REMOTE] = {.type = NLA_BINARY, - .len = sizeof(struct sockaddr_storage)}, -}; +#define UDP_MIN_HEADROOM 48 /** * struct udp_media_addr - IP/UDP addressing information @@ -181,6 +174,8 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb, err = PTR_ERR(rt); goto tx_error; } + + skb->dev = rt->dst.dev; ttl = ip4_dst_hoplimit(&rt->dst); udp_tunnel_xmit_skb(rt, ub->ubsock->sk, skb, src->ipv4.s_addr, dst->ipv4.s_addr, 0, ttl, 0, src->udp_port, @@ -201,7 +196,7 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb, ttl = ip6_dst_hoplimit(ndst); err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, skb, ndst->dev, &src->ipv6, - &dst->ipv6, 0, ttl, src->udp_port, + &dst->ipv6, 0, ttl, 0, src->udp_port, dst->udp_port, false); #endif } @@ -274,7 +269,7 @@ static int parse_options(struct nlattr *attrs[], struct udp_bearer *ub, struct udp_media_addr *remote) { struct nlattr *opts[TIPC_NLA_UDP_MAX + 1]; - struct sockaddr_storage *sa_local, *sa_remote; + struct sockaddr_storage sa_local, sa_remote; if (!attrs[TIPC_NLA_BEARER_UDP_OPTS]) goto err; @@ -283,41 +278,48 @@ static int parse_options(struct nlattr *attrs[], struct udp_bearer *ub, tipc_nl_udp_policy)) goto err; if (opts[TIPC_NLA_UDP_LOCAL] && opts[TIPC_NLA_UDP_REMOTE]) { - sa_local = nla_data(opts[TIPC_NLA_UDP_LOCAL]); - sa_remote = nla_data(opts[TIPC_NLA_UDP_REMOTE]); + nla_memcpy(&sa_local, opts[TIPC_NLA_UDP_LOCAL], + sizeof(sa_local)); + nla_memcpy(&sa_remote, opts[TIPC_NLA_UDP_REMOTE], + sizeof(sa_remote)); } else { err: pr_err("Invalid UDP bearer configuration"); return -EINVAL; } - if ((sa_local->ss_family & sa_remote->ss_family) == AF_INET) { + if ((sa_local.ss_family & sa_remote.ss_family) == AF_INET) { struct sockaddr_in *ip4; - ip4 = (struct sockaddr_in *)sa_local; + ip4 = (struct sockaddr_in *)&sa_local; local->proto = htons(ETH_P_IP); local->udp_port = ip4->sin_port; local->ipv4.s_addr = ip4->sin_addr.s_addr; - ip4 = (struct sockaddr_in *)sa_remote; + ip4 = (struct sockaddr_in *)&sa_remote; remote->proto = htons(ETH_P_IP); remote->udp_port = ip4->sin_port; remote->ipv4.s_addr = ip4->sin_addr.s_addr; return 0; #if IS_ENABLED(CONFIG_IPV6) - } else if ((sa_local->ss_family & sa_remote->ss_family) == AF_INET6) { + } else if ((sa_local.ss_family & sa_remote.ss_family) == AF_INET6) { + int atype; struct sockaddr_in6 *ip6; - ip6 = (struct sockaddr_in6 *)sa_local; + ip6 = (struct sockaddr_in6 *)&sa_local; + atype = ipv6_addr_type(&ip6->sin6_addr); + if (__ipv6_addr_needs_scope_id(atype) && !ip6->sin6_scope_id) + return -EINVAL; + local->proto = htons(ETH_P_IPV6); local->udp_port = ip6->sin6_port; - local->ipv6 = ip6->sin6_addr; + memcpy(&local->ipv6, &ip6->sin6_addr, sizeof(struct in6_addr)); ub->ifindex = ip6->sin6_scope_id; - ip6 = (struct sockaddr_in6 *)sa_remote; + ip6 = (struct sockaddr_in6 *)&sa_remote; remote->proto = htons(ETH_P_IPV6); remote->udp_port = ip6->sin6_port; - remote->ipv6 = ip6->sin6_addr; + memcpy(&remote->ipv6, &ip6->sin6_addr, sizeof(struct in6_addr)); return 0; #endif } |