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Merge pull request #10317 from ton31337/fix/shutdown_msg

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bgpd: Make sure we are playing with non-NULL for bgp shutdown message
This commit is contained in:
Igor Ryzhov 2022-01-12 14:36:58 +03:00 committed by GitHub
commit 4d33086cad
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1 changed files with 11 additions and 6 deletions
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17
bgpd/bgpd.c
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@ -4320,10 +4320,6 @@ void bgp_shutdown_enable(struct bgp *bgp, const char *msg)
struct listnode *node;
/* length(1) + message(N) */
uint8_t data[BGP_ADMIN_SHUTDOWN_MSG_LEN + 1];
size_t datalen = strlen(msg);
data[0] = datalen;
memcpy(data + 1, msg, datalen);
/* do nothing if already shut down */
if (CHECK_FLAG(bgp->flags, BGP_FLAG_SHUTDOWN))
@ -4341,15 +4337,24 @@ void bgp_shutdown_enable(struct bgp *bgp, const char *msg)
/* send a RFC 4486 notification message if necessary */
if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) {
if (msg)
if (msg) {
size_t datalen = strlen(msg);
if (datalen > BGP_ADMIN_SHUTDOWN_MSG_LEN)
datalen = BGP_ADMIN_SHUTDOWN_MSG_LEN;
data[0] = datalen;
memcpy(data + 1, msg, datalen);
bgp_notify_send_with_data(
peer, BGP_NOTIFY_CEASE,
BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, data,
datalen + 1);
else
} else {
bgp_notify_send(
peer, BGP_NOTIFY_CEASE,
BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN);
}
}
/* reset start timer to initial value */