From: Roy.Li <rongqing.li@xxxxxxxxxxxxx>
Export the udp sock's security context to proc, since it maybe
different from the sock's owner process security context.
Signed-off-by: Roy.Li <rongqing.li@xxxxxxxxxxxxx>
---
net/ipv4/udp.c | 19 ++++++++++++++-----
1 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 1b5a193..e64b858 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2089,6 +2089,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
int bucket, int *len)
{
struct inet_sock *inet = inet_sk(sp);
+ int sclen;
__be32 dest = inet->inet_daddr;
__be32 src = inet->inet_rcv_saddr;
__u16 destp = ntohs(inet->inet_dport);
@@ -2102,21 +2103,29 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
atomic_read(&sp->sk_refcnt), sp,
atomic_read(&sp->sk_drops), len);
+
+ sock_write_secctx(sp, f, &sclen);
+ *len += sclen;
}
int udp4_seq_show(struct seq_file *seq, void *v)
{
- if (v == SEQ_START_TOKEN)
- seq_printf(seq, "%-127s\n",
+ int len;
+
+ if (v == SEQ_START_TOKEN) {
+ seq_printf(seq,
" sl local_address rem_address st tx_queue "
"rx_queue tr tm->when retrnsmt uid timeout "
- "inode ref pointer drops");
+ "inode ref pointer drops%n",
+ &len);
+ seq_printf(seq, "%-*s\n", 150 - len,
+ (selinux_is_enabled() ? " scontext" : ""));
+ }
else {
struct udp_iter_state *state = seq->private;
- int len;
udp4_format_sock(v, seq, state->bucket, &len);
- seq_printf(seq, "%*s\n", 127 - len, "");
+ seq_printf(seq, "%*s\n", 150 - len, "");
}
return 0;
}
--
1.7.1
--
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