diff options
Diffstat (limited to 'net/netlink')
| -rw-r--r-- | net/netlink/af_netlink.c | 27 | ||||
| -rw-r--r-- | net/netlink/genetlink.c | 5 |
2 files changed, 23 insertions, 9 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 4c5972ba8c7..795424396af 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -683,6 +683,9 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr, struct netlink_sock *nlk = nlk_sk(sk); struct sockaddr_nl *nladdr = (struct sockaddr_nl *)addr; + if (alen < sizeof(addr->sa_family)) + return -EINVAL; + if (addr->sa_family == AF_UNSPEC) { sk->sk_state = NETLINK_UNCONNECTED; nlk->dst_pid = 0; @@ -1093,6 +1096,7 @@ static inline int do_one_set_err(struct sock *sk, struct netlink_set_err_data *p) { struct netlink_sock *nlk = nlk_sk(sk); + int ret = 0; if (sk == p->exclude_sk) goto out; @@ -1104,10 +1108,15 @@ static inline int do_one_set_err(struct sock *sk, !test_bit(p->group - 1, nlk->groups)) goto out; + if (p->code == ENOBUFS && nlk->flags & NETLINK_RECV_NO_ENOBUFS) { + ret = 1; + goto out; + } + sk->sk_err = p->code; sk->sk_error_report(sk); out: - return 0; + return ret; } /** @@ -1116,12 +1125,16 @@ out: * @pid: the PID of a process that we want to skip (if any) * @groups: the broadcast group that will notice the error * @code: error code, must be negative (as usual in kernelspace) + * + * This function returns the number of broadcast listeners that have set the + * NETLINK_RECV_NO_ENOBUFS socket option. */ -void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code) +int netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code) { struct netlink_set_err_data info; struct hlist_node *node; struct sock *sk; + int ret = 0; info.exclude_sk = ssk; info.pid = pid; @@ -1132,9 +1145,10 @@ void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code) read_lock(&nl_table_lock); sk_for_each_bound(sk, node, &nl_table[ssk->sk_protocol].mc_list) - do_one_set_err(sk, &info); + ret += do_one_set_err(sk, &info); read_unlock(&nl_table_lock); + return ret; } EXPORT_SYMBOL(netlink_set_err); @@ -1978,12 +1992,12 @@ static int netlink_seq_show(struct seq_file *seq, void *v) if (v == SEQ_START_TOKEN) seq_puts(seq, "sk Eth Pid Groups " - "Rmem Wmem Dump Locks Drops\n"); + "Rmem Wmem Dump Locks Drops Inode\n"); else { struct sock *s = v; struct netlink_sock *nlk = nlk_sk(s); - seq_printf(seq, "%p %-3d %-6d %08x %-8d %-8d %p %-8d %-8d\n", + seq_printf(seq, "%p %-3d %-6d %08x %-8d %-8d %p %-8d %-8d %-8lu\n", s, s->sk_protocol, nlk->pid, @@ -1992,7 +2006,8 @@ static int netlink_seq_show(struct seq_file *seq, void *v) sk_wmem_alloc_get(s), nlk->cb, atomic_read(&s->sk_refcnt), - atomic_read(&s->sk_drops) + atomic_read(&s->sk_drops), + sock_i_ino(s) ); } diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index d07ecda0a92..06438fa2b1e 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -8,6 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/errno.h> #include <linux/types.h> #include <linux/socket.h> @@ -681,9 +682,7 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb) int chains_to_skip = cb->args[0]; int fams_to_skip = cb->args[1]; - for (i = 0; i < GENL_FAM_TAB_SIZE; i++) { - if (i < chains_to_skip) - continue; + for (i = chains_to_skip; i < GENL_FAM_TAB_SIZE; i++) { n = 0; list_for_each_entry(rt, genl_family_chain(i), family_list) { if (!rt->netnsok && !net_eq(net, &init_net)) |