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Merge pull request #1190 from waja/github780

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check_ssh: check protocol
This commit is contained in:
Sven Nierlein 2014-06-30 13:42:02 +02:00
commit ed914472e9
1 changed files with 20 additions and 4 deletions
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24
plugins/check_ssh.c
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@ -46,6 +46,7 @@ const char *email = "devel@monitoring-plugins.org";
int port = -1;
char *server_name = NULL;
char *remote_version = NULL;
char *remote_protocol = NULL;
int verbose = FALSE;
int process_arguments (int, char **);
@ -53,7 +54,7 @@ int validate_arguments (void);
void print_help (void);
void print_usage (void);
int ssh_connect (char *haddr, int hport, char *remote_version);
int ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol);
@ -78,7 +79,7 @@ main (int argc, char **argv)
alarm (socket_timeout);
/* ssh_connect exits if error is found */
result = ssh_connect (server_name, port, remote_version);
result = ssh_connect (server_name, port, remote_version, remote_protocol);
alarm (0);
@ -105,6 +106,7 @@ process_arguments (int argc, char **argv)
{"timeout", required_argument, 0, 't'},
{"verbose", no_argument, 0, 'v'},
{"remote-version", required_argument, 0, 'r'},
{"remote-protcol", required_argument, 0, 'P'},
{0, 0, 0, 0}
};
@ -116,7 +118,7 @@ process_arguments (int argc, char **argv)
strcpy (argv[c], "-t");
while (1) {
c = getopt_long (argc, argv, "+Vhv46t:r:H:p:", longopts, &option);
c = getopt_long (argc, argv, "+Vhv46t:r:H:p:P:", longopts, &option);
if (c == -1 || c == EOF)
break;
@ -152,6 +154,9 @@ process_arguments (int argc, char **argv)
case 'r': /* remote version */
remote_version = optarg;
break;
case 'P': /* remote version */
remote_protocol = optarg;
break;
case 'H': /* host */
if (is_host (optarg) == FALSE)
usage2 (_("Invalid hostname/address"), optarg);
@ -206,7 +211,7 @@ validate_arguments (void)
int
ssh_connect (char *haddr, int hport, char *remote_version)
ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol)
{
int sd;
int result;
@ -254,6 +259,14 @@ ssh_connect (char *haddr, int hport, char *remote_version)
exit (STATE_WARNING);
}
if (remote_protocol && strcmp(remote_protocol, ssh_proto)) {
printf
(_("SSH WARNING - %s (protocol %s) protocol version mismatch, expected '%s'\n"),
ssh_server, ssh_proto, remote_protocol);
close(sd);
exit (STATE_WARNING);
}
elapsed_time = (double)deltime(tv) / 1.0e6;
printf
@ -296,6 +309,9 @@ print_help (void)
printf (" %s\n", "-r, --remote-version=STRING");
printf (" %s\n", _("Warn if string doesn't match expected server version (ex: OpenSSH_3.9p1)"));
printf (" %s\n", "-P, --remote-protocol=STRING");
printf (" %s\n", _("Warn if protocol doesn't match expected protocol version (ex: 2.0)"));
printf (UT_VERBOSE);
printf (UT_SUPPORT);