From: Dmitrii Turlupov <dturlupov@factor-ts.ru>
Date: Thu, 4 Feb 2021 13:27:31 +0000 (+0300)
Subject: ssh: optional bind interface if bind address specified.
X-Git-Tag: V_8_5_P1~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a878a71a3528c2626aa1d331934fd964782d41c;p=thirdparty%2Fopenssh-portable.git

ssh: optional bind interface if bind address specified.

Allows the -b and -B options to be used together.
For example, when the interface is in the VRF.
---

diff --git a/sshconnect.c b/sshconnect.c
index 74f9e7670..8666bd6ed 100644
--- a/sshconnect.c
+++ b/sshconnect.c
@@ -390,6 +390,12 @@ ssh_create_socket(struct addrinfo *ai)
 		}
 		memcpy(&bindaddr, res->ai_addr, res->ai_addrlen);
 		bindaddrlen = res->ai_addrlen;
+
+		/*'-B' option*/
+		if (options.bind_interface != NULL) {
+			if (setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, options.bind_interface, strlen(options.bind_interface) + 1))
+				debug("error: setsockopt SO_BINDTODEVICE");
+		}
 	} else if (options.bind_interface != NULL) {
 #ifdef HAVE_IFADDRS_H
 		if ((r = getifaddrs(&ifaddrs)) != 0) {