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 bbde8afef..0ec1e54e9 100644
--- a/sshconnect.c
+++ b/sshconnect.c
@@ -524,10 +524,10 @@ 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 (roaming_atomicio(vwrite, connection_out, client_version_string,
             strlen(client_version_string)) != strlen(client_version_string))
diff --git a/sshd.c b/sshd.c
index 0537bc90d..0d4fb7f33 100644
--- a/sshd.c
+++ b/sshd.c
@@ -443,7 +443,7 @@ 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 d917ca1f6..5c22d9067 100644
--- a/version.h
+++ b/version.h
@@ -3,4 +3,9 @@
 #define SSH_VERSION     "OpenSSH_7.1"
 
 #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