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1190679 - In IPv6, snmp packet does not send from specified interface assigned by clientaddr option in snmpd.conf
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commit a92628a163ebf1ea62220684736300461c003875
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Author: Niels Baggesen <nba@users.sourceforge.net>
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Date: Mon Jan 26 20:26:06 2015 +0100
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BUG#a2584: Fix snmptrap to use clientaddr from snmp.conf. Thanks to rizwan
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+ restore clientaddrUsesPort functionality for UDPv6
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diff -up net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c.udp6-clientaddr net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c
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--- net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c.udp6-clientaddr 2015-06-17 15:00:50.178122151 +0200
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+++ net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c 2015-06-17 15:01:09.203194870 +0200
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@@ -284,6 +284,27 @@ netsnmp_udp6_transport(struct sockaddr_i
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return NULL;
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#endif /* NETSNMP_NO_LISTEN_SUPPORT */
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} else {
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+ char *client_socket = NULL;
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+ /*
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+ * This is a client session. If we've been given a
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+ * client address to send from, then bind to that.
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+ * Otherwise the send will use "something sensible".
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+ */
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+
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+ client_socket = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
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+ NETSNMP_DS_LIB_CLIENT_ADDR);
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+ if (client_socket) {
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+ struct sockaddr_in6 client_addr;
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+ netsnmp_sockaddr_in6_2(&client_addr, client_socket, NULL);
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+ rc = bind(t->sock, (struct sockaddr *)&client_addr,
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+ sizeof(struct sockaddr_in6));
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+ if ( rc != 0 ) {
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+ DEBUGMSGTL(("netsnmp_udp6", "failed to bind for clientaddr: %d %s\n",
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+ errno, strerror(errno)));
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+ netsnmp_socketbase_close(t);
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+ netsnmp_transport_free(t);
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+ }
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+ }
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/*
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* This is a client session. Save the address in the
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* transport-specific data pointer for later use by netsnmp_udp6_send.
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diff -up net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c.old net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c
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--- net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c.old 2015-06-17 16:34:09.120181912 +0200
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+++ net-snmp-5.7.2/snmplib/transports/snmpUDPIPv6Domain.c 2015-06-17 16:35:29.803192111 +0200
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@@ -294,8 +294,13 @@ netsnmp_udp6_transport(struct sockaddr_i
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client_socket = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
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NETSNMP_DS_LIB_CLIENT_ADDR);
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if (client_socket) {
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+ int uses_port = netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
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+ NETSNMP_DS_LIB_CLIENT_ADDR_USES_PORT);
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struct sockaddr_in6 client_addr;
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netsnmp_sockaddr_in6_2(&client_addr, client_socket, NULL);
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+ if (uses_port == 0) {
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+ client_addr.sin6_port = 0;
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+ }
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rc = bind(t->sock, (struct sockaddr *)&client_addr,
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sizeof(struct sockaddr_in6));
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if ( rc != 0 ) {
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commit 1ee72102fbe722d232d74abc4660a8b134cec8d6
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Author: Bart Van Assche <bvanassche@acm.org>
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Date: Sat May 23 07:32:53 2015 +0200
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snmplib, UDPIPv6 transport: Add a missing return statement
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Detected by Coverity.
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diff --git a/snmplib/transports/snmpUDPIPv6Domain.c b/snmplib/transports/snmpUDPIPv6Domain.c
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index 029b164..11c39bb 100644
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--- a/snmplib/transports/snmpUDPIPv6Domain.c
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+++ b/snmplib/transports/snmpUDPIPv6Domain.c
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@@ -285,6 +285,7 @@ netsnmp_udp6_transport(struct sockaddr_in6 *addr, int local)
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errno, strerror(errno)));
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netsnmp_socketbase_close(t);
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netsnmp_transport_free(t);
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+ return NULL;
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}
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}
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/*
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