Include the Debian version in our identification

This makes it easier to audit networks for versions patched against security
vulnerabilities.  It has little detrimental effect, as attackers will
generally just try attacks rather than bothering to scan for
vulnerable-looking version strings.  (However, see debian-banner.patch.)

Forwarded: not-needed
Last-Update: 2013-09-14

Patch-Name: package-versioning.patch

3 files changed, 9 insertions, 4 deletions

diff --git a/sshconnect.c b/sshconnect.c
index fd67727b8..07dfc9da1 100644
--- a/sshconnect.c
+++ b/sshconnect.c
@@ -527,10 +527,10 @@ send_client_banner(int connection_out, int minor1)
         /* Send our own protocol version identification. */
         if (compat20) {
                 xasprintf(&client_version_string, "SSH-%d.%d-%.100s\r\n",
-                    PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_VERSION);
+                    PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_RELEASE);
         } else {
                 xasprintf(&client_version_string, "SSH-%d.%d-%.100s\n",
-                    PROTOCOL_MAJOR_1, minor1, SSH_VERSION);
+                    PROTOCOL_MAJOR_1, minor1, SSH_RELEASE);
         }
         if (atomicio(vwrite, connection_out, client_version_string,
             strlen(client_version_string)) != strlen(client_version_string))
diff --git a/sshd.c b/sshd.c
index bb093ccc0..c762190dc 100644
--- a/sshd.c
+++ b/sshd.c
@@ -442,7 +442,7 @@ sshd_exchange_identification(int sock_in, int sock_out)
         }
 
         xasprintf(&server_version_string, "SSH-%d.%d-%.100s%s%s%s",
-            major, minor, SSH_VERSION,
+            major, minor, SSH_RELEASE,
             *options.version_addendum == '\0' ? "" : " ",
             options.version_addendum, newline);
 
diff --git a/version.h b/version.h
index 4189982a9..236dd8779 100644
--- a/version.h
+++ b/version.h
@@ -3,4 +3,9 @@
 #define SSH_VERSION     "OpenSSH_7.2"
 
 #define SSH_PORTABLE    "p1"
-#define SSH_RELEASE     SSH_VERSION SSH_PORTABLE
+#define SSH_RELEASE_MINIMUM     SSH_VERSION SSH_PORTABLE
+#ifdef SSH_EXTRAVERSION
+#define SSH_RELEASE     SSH_RELEASE_MINIMUM " " SSH_EXTRAVERSION
+#else
+#define SSH_RELEASE     SSH_RELEASE_MINIMUM
+#endif