diff -up openssh-6.8p1/configure.ac.vendor openssh-6.8p1/configure.ac
--- openssh-6.8p1/configure.ac.vendor 2015-03-18 11:17:56.670880303 +0100
+++ openssh-6.8p1/configure.ac 2015-03-18 11:17:56.695880243 +0100
@@ -4743,6 +4743,12 @@ AC_ARG_WITH([lastlog],
fi
]
)
+AC_ARG_ENABLE(vendor-patchlevel,
+ [ --enable-vendor-patchlevel=TAG specify a vendor patch level],
+ [AC_DEFINE_UNQUOTED(SSH_VENDOR_PATCHLEVEL,[SSH_RELEASE "-" "$enableval"],[Define to your vendor patch level, if it has been modified from the upstream source release.])
+ SSH_VENDOR_PATCHLEVEL="$enableval"],
+ [AC_DEFINE(SSH_VENDOR_PATCHLEVEL,SSH_RELEASE,[Define to your vendor patch level, if it has been modified from the upstream source release.])
+ SSH_VENDOR_PATCHLEVEL=none])
dnl lastlog, [uw]tmpx? detection
dnl NOTE: set the paths in the platform section to avoid the
@@ -5005,6 +5011,7 @@ echo " Translate v4 in v6 hack
echo " BSD Auth support: $BSD_AUTH_MSG"
echo " Random number source: $RAND_MSG"
echo " Privsep sandbox style: $SANDBOX_STYLE"
+echo " Vendor patch level: $SSH_VENDOR_PATCHLEVEL"
echo ""
diff -up openssh-6.8p1/servconf.c.vendor openssh-6.8p1/servconf.c
--- openssh-6.8p1/servconf.c.vendor 2015-03-17 06:49:20.000000000 +0100
+++ openssh-6.8p1/servconf.c 2015-03-18 11:19:16.279691126 +0100
@@ -145,6 +145,7 @@ initialize_server_options(ServerOptions
options->max_authtries = -1;
options->max_sessions = -1;
options->banner = NULL;
+ options->show_patchlevel = -1;
options->use_dns = -1;
options->client_alive_interval = -1;
options->client_alive_count_max = -1;
@@ -327,6 +328,8 @@ fill_default_server_options(ServerOption
options->ip_qos_bulk = IPTOS_THROUGHPUT;
if (options->version_addendum == NULL)
options->version_addendum = xstrdup("");
+ if (options->show_patchlevel == -1)
+ options->show_patchlevel = 0;
if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
options->fwd_opts.streamlocal_bind_mask = 0177;
if (options->fwd_opts.streamlocal_bind_unlink == -1)
@@ -388,7 +391,7 @@ typedef enum {
sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedKeyTypes,
sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
- sBanner, sUseDNS, sHostbasedAuthentication,
+ sBanner, sShowPatchLevel, sUseDNS, sHostbasedAuthentication,
sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedKeyTypes,
sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
@@ -504,6 +507,7 @@ static struct {
{ "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
{ "maxsessions", sMaxSessions, SSHCFG_ALL },
{ "banner", sBanner, SSHCFG_ALL },
+ { "showpatchlevel", sShowPatchLevel, SSHCFG_GLOBAL },
{ "usedns", sUseDNS, SSHCFG_GLOBAL },
{ "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
{ "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
@@ -1320,6 +1324,10 @@ process_server_config_line(ServerOptions
multistate_ptr = multistate_privsep;
goto parse_multistate;
+ case sShowPatchLevel:
+ intptr = &options->show_patchlevel;
+ goto parse_flag;
+
case sAllowUsers:
while ((arg = strdelim(&cp)) && *arg != '\0') {
if (options->num_allow_users >= MAX_ALLOW_USERS)
@@ -2145,6 +2153,7 @@ dump_config(ServerOptions *o)
dump_cfg_fmtint(sUseLogin, o->use_login);
dump_cfg_fmtint(sCompression, o->compression);
dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
+ dump_cfg_fmtint(sShowPatchLevel, o->show_patchlevel);
dump_cfg_fmtint(sUseDNS, o->use_dns);
dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
diff -up openssh-6.8p1/servconf.h.vendor openssh-6.8p1/servconf.h
--- openssh-6.8p1/servconf.h.vendor 2015-03-17 06:49:20.000000000 +0100
+++ openssh-6.8p1/servconf.h 2015-03-18 11:17:56.696880241 +0100
@@ -151,6 +151,7 @@ typedef struct {
int max_authtries;
int max_sessions;
char *banner; /* SSH-2 banner message */
+ int show_patchlevel; /* Show vendor patch level to clients */
int use_dns;
int client_alive_interval; /*
* poke the client this often to
diff -up openssh-6.8p1/sshd.c.vendor openssh-6.8p1/sshd.c
--- openssh-6.8p1/sshd.c.vendor 2015-03-18 11:17:56.669880305 +0100
+++ openssh-6.8p1/sshd.c 2015-03-18 11:17:56.697880239 +0100
@@ -431,7 +431,7 @@ sshd_exchange_identification(int sock_in
}
xasprintf(&server_version_string, "SSH-%d.%d-%.100s%s%s%s",
- major, minor, SSH_VERSION,
+ major, minor, (options.show_patchlevel == 1) ? SSH_VENDOR_PATCHLEVEL : SSH_VERSION,
*options.version_addendum == '\0' ? "" : " ",
options.version_addendum, newline);
@@ -1737,7 +1737,8 @@ main(int ac, char **av)
exit(1);
}
- debug("sshd version %s, %s", SSH_VERSION,
+ debug("sshd version %s, %s",
+ (options.show_patchlevel == 1) ? SSH_VENDOR_PATCHLEVEL : SSH_VERSION,
#ifdef WITH_OPENSSL
SSLeay_version(SSLEAY_VERSION)
#else
diff -up openssh-6.8p1/sshd_config.vendor openssh-6.8p1/sshd_config
--- openssh-6.8p1/sshd_config.vendor 2015-03-18 11:17:56.697880239 +0100
+++ openssh-6.8p1/sshd_config 2015-03-18 11:20:15.552550274 +0100
@@ -119,6 +119,7 @@ UsePrivilegeSeparation sandbox # Defaul
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
+#ShowPatchLevel no
#UseDNS no
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
diff -up openssh-6.8p1/sshd_config.0.vendor openssh-6.8p1/sshd_config.0
--- openssh-6.8p1/sshd_config.0.vendor 2015-03-18 11:17:56.691880253 +0100
+++ openssh-6.8p1/sshd_config.0 2015-03-18 11:17:56.697880239 +0100
@@ -740,6 +740,11 @@ DESCRIPTION
Defines the number of bits in the ephemeral protocol version 1
server key. The minimum value is 512, and the default is 1024.
+ ShowPatchLevel
+ Specifies whether sshd will display the specific patch level of
+ the binary in the server identification string. The patch level
+ is set at compile-time. The default is M-bM-^@M-^\noM-bM-^@M-^].
+
StreamLocalBindMask
Sets the octal file creation mode mask (umask) used when creating
a Unix-domain socket file for local or remote port forwarding.
diff -up openssh-6.8p1/sshd_config.5.vendor openssh-6.8p1/sshd_config.5
--- openssh-6.8p1/sshd_config.5.vendor 2015-03-18 11:17:56.691880253 +0100
+++ openssh-6.8p1/sshd_config.5 2015-03-18 11:17:56.697880239 +0100
@@ -1276,6 +1276,13 @@ This option applies to protocol version
.It Cm ServerKeyBits
Defines the number of bits in the ephemeral protocol version 1 server key.
The minimum value is 512, and the default is 1024.
+.It Cm ShowPatchLevel
+Specifies whether
+.Nm sshd
+will display the patch level of the binary in the identification string.
+The patch level is set at compile-time.
+The default is
+.Dq no .
.It Cm StreamLocalBindMask
Sets the octal file creation mode mask
.Pq umask