Mercurial > dropbear

changeset 1209:ab7d9c12caa7

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Merge pull request #17 from annulen/kill_proxy_cmd Client: kill proxy command when exiting application.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 15 Dec 2015 21:40:32 +0800
parents 81063d78fe69 (diff) fb58cf341951 (current diff)
children 64a50eac1030 61d3f56808a4
files
diffstat 11 files changed, 159 insertions(+), 27 deletions(-) [+]
line wrap: on
line diff
--- a/.hgsigs	Thu Dec 03 16:22:29 2015 +0300
+++ b/.hgsigs	Tue Dec 15 21:40:32 2015 +0800
@@ -18,3 +18,4 @@
 ef4b26364b0cdda1084751d7de3d76c589e2d9cb 0 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
 af074dbcb68ff8670b3818e0d66d5dc6f1bd5877 0 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
 5bb5976e6902a0c9fba974a880c68c9487ee1e77 0 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
+926e7275cef4f4f2a4251597ee4814748394824c 0 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
--- a/.hgtags	Thu Dec 03 16:22:29 2015 +0300
+++ b/.hgtags	Tue Dec 15 21:40:32 2015 +0800
@@ -50,3 +50,4 @@
 809feaa9408f036734129c77f2b3c7e779d4f099 DROPBEAR_2015.68
 1637dbd262124d113e52967df46afd6c715e4fad DROPBEAR_2015.69
 79a6ef02307d05cb9dda10465cb5b807baa8f62e DROPBEAR_2015.70
+9a944a243f08be6b22d32f166a0690eb4872462b DROPBEAR_2015.71
--- a/CHANGES	Thu Dec 03 16:22:29 2015 +0300
+++ b/CHANGES	Tue Dec 15 21:40:32 2015 +0800
@@ -1,3 +1,18 @@
+2015.71 - 3 December 2015
+
+- Fix "bad buf_incrpos" when data is transferred, broke in 2015.69
+
+- Fix crash on exit when -p address:port is used, broke in 2015.68, thanks to
+  Frank Stollenwerk for reporting and investigation
+
+- Fix building with only ENABLE_CLI_REMOTETCPFWD given, patch from Konstantin Tokarev
+
+- Fix bad configure script test which didn't work with dash shell, patch from Juergen Daubert,
+  broke in 2015.70
+
+- Fix server race condition that could cause sessions to hang on exit,
+  https://github.com/robotframework/SSHLibrary/issues/128
+
 2015.70 - 26 November 2015
 
 - Fix server password authentication on Linux, broke in 2015.69
--- a/cli-runopts.c	Thu Dec 03 16:22:29 2015 +0300
+++ b/cli-runopts.c	Tue Dec 15 21:40:32 2015 +0800
@@ -46,6 +46,7 @@
 #ifdef ENABLE_CLI_NETCAT
 static void add_netcat(const char *str);
 #endif
+static void add_extendedopt(const char *str);
 
 static void printhelp() {
 
@@ -64,6 +65,7 @@
 					"-y    Always accept remote host key if unknown\n"
 					"-y -y Don't perform any remote host key checking (caution)\n"
 					"-s    Request a subsystem (use by external sftp)\n"
+					"-o option     Set option in OpenSSH-like format ('-o help' to list options)\n"
 #ifdef ENABLE_CLI_PUBKEY_AUTH
 					"-i <identityfile>   (multiple allowed, default %s)\n"
 #endif
@@ -106,6 +108,7 @@
 	unsigned int i, j;
 	char ** next = 0;
 	enum {
+		OPT_EXTENDED_OPTIONS,
 #ifdef ENABLE_CLI_PUBKEY_AUTH
 		OPT_AUTHKEY,
 #endif
@@ -145,6 +148,9 @@
 #ifdef ENABLE_CLI_PUBKEY_AUTH
 	cli_opts.privkeys = list_new();
 #endif
+#ifdef ENABLE_CLI_ANYTCPFWD
+	cli_opts.exit_on_fwd_failure = 0;
+#endif
 #ifdef ENABLE_CLI_LOCALTCPFWD
 	cli_opts.localfwds = list_new();
 	opts.listen_fwd_all = 0;
@@ -224,6 +230,9 @@
 				case 's':
 					cli_opts.is_subsystem = 1;
 					break;
+				case 'o':
+					opt = OPT_EXTENDED_OPTIONS;
+					break;
 #ifdef ENABLE_CLI_LOCALTCPFWD
 				case 'L':
 					opt = OPT_LOCALTCPFWD;
@@ -301,7 +310,6 @@
 					print_version();
 					exit(EXIT_SUCCESS);
 					break;
-				case 'o':
 				case 'b':
 					next = &dummy;
 				default:
@@ -321,6 +329,11 @@
 				dropbear_exit("Missing argument");
 		}
 
+		if (opt == OPT_EXTENDED_OPTIONS) {
+			TRACE(("opt extended"))
+			add_extendedopt(&argv[i][j]);
+		}
+		else
 #ifdef ENABLE_CLI_PUBKEY_AUTH
 		if (opt == OPT_AUTHKEY) {
 			TRACE(("opt authkey"))
@@ -806,3 +819,58 @@
 	dropbear_exit("Bad TCP port in '%s'", origstr);
 }
 #endif
+
+static int match_extendedopt(const char** strptr, const char *optname) {
+	int seen_eq = 0;
+	int optlen = strlen(optname);
+	const char *str = *strptr;
+
+	while (isspace(*str))
+		++str;
+
+	if (strncasecmp(str, optname, optlen) != 0)
+		return DROPBEAR_FAILURE;
+
+	str += optlen;
+
+	while (isspace(*str) || (!seen_eq && *str == '=')) {
+		if (*str == '=')
+			seen_eq = 1;
+		++str;
+	}
+
+	*strptr = str;
+	return DROPBEAR_SUCCESS;
+}
+
+static int parse_flag_value(const char *value)
+{
+	if (strcmp(value, "yes") == 0 || strcmp(value, "true") == 0)
+		return 1;
+	else if (strcmp(value, "no") == 0 || strcmp(value, "false") == 0)
+		return 0;
+
+	dropbear_exit("Bad yes/no argument '%s'", value);
+}
+
+static void add_extendedopt(const char* origstr) {
+	const char *optstr = origstr;
+
+	if (strcmp(origstr, "help") == 0) {
+		dropbear_log(LOG_INFO, "Available options:\n"
+#ifdef ENABLE_CLI_ANYTCPFWD
+			"\tExitOnForwardFailure\n"
+#endif
+		);
+		exit(EXIT_SUCCESS);
+	}
+
+#ifdef ENABLE_CLI_ANYTCPFWD
+	if (match_extendedopt(&optstr, "ExitOnForwardFailure") == DROPBEAR_SUCCESS) {
+		cli_opts.exit_on_fwd_failure = parse_flag_value(optstr);
+		return;
+	}
+#endif
+
+	dropbear_exit("Bad configuration option '%s'", origstr);
+}
--- a/cli-tcpfwd.c	Thu Dec 03 16:22:29 2015 +0300
+++ b/cli-tcpfwd.c	Tue Dec 15 21:40:32 2015 +0800
@@ -60,6 +60,22 @@
 };
 #endif
 
+#ifdef ENABLE_CLI_ANYTCPFWD
+static void fwd_failed(const char* format, ...) ATTRIB_PRINTF(1,2);
+void fwd_failed(const char* format, ...)
+{
+	va_list param;
+	va_start(param, format);
+
+	if (cli_opts.exit_on_fwd_failure)
+		_dropbear_exit(EXIT_FAILURE, format, param);
+	else
+		_dropbear_log(LOG_WARNING, format, param);
+
+	va_end(param);
+}
+#endif
+
 #ifdef ENABLE_CLI_LOCALTCPFWD
 void setup_localtcp() {
 	m_list_elem *iter;
@@ -75,7 +91,7 @@
 				fwd->connectaddr,
 				fwd->connectport);
 		if (ret == DROPBEAR_FAILURE) {
-			dropbear_log(LOG_WARNING, "Failed local port forward %s:%d:%s:%d",
+			fwd_failed("Failed local port forward %s:%d:%s:%d",
 					fwd->listenaddr,
 					fwd->listenport,
 					fwd->connectaddr,
@@ -181,7 +197,10 @@
 		struct TCPFwdEntry *fwd = (struct TCPFwdEntry*)iter->item;
 		if (!fwd->have_reply) {
 			fwd->have_reply = 1;
-			dropbear_log(LOG_WARNING, "Remote TCP forward request failed (port %d -> %s:%d)", fwd->listenport, fwd->connectaddr, fwd->connectport);
+			fwd_failed("Remote TCP forward request failed (port %d -> %s:%d)",
+					fwd->listenport,
+					fwd->connectaddr,
+					fwd->connectport);
 			return;
 		}
 	}
--- a/common-algo.c	Thu Dec 03 16:22:29 2015 +0300
+++ b/common-algo.c	Tue Dec 15 21:40:32 2015 +0800
@@ -249,7 +249,8 @@
 };
 
 static const struct dropbear_kex kex_dh_group1 = {DROPBEAR_KEX_NORMAL_DH, dh_p_1, DH_P_1_LEN, NULL, &sha1_desc };
-static const struct dropbear_kex kex_dh_group14 = {DROPBEAR_KEX_NORMAL_DH, dh_p_14, DH_P_14_LEN, NULL, &sha1_desc };
+static const struct dropbear_kex kex_dh_group14_sha1 = {DROPBEAR_KEX_NORMAL_DH, dh_p_14, DH_P_14_LEN, NULL, &sha1_desc };
+static const struct dropbear_kex kex_dh_group14_sha256 = {DROPBEAR_KEX_NORMAL_DH, dh_p_14, DH_P_14_LEN, NULL, &sha256_desc };
 
 /* These can't be const since dropbear_ecc_fill_dp() fills out
  ecc_curve at runtime */
@@ -285,7 +286,8 @@
 	{"ecdh-sha2-nistp256", 0, &kex_ecdh_nistp256, 1, NULL},
 #endif
 #endif
-	{"diffie-hellman-group14-sha1", 0, &kex_dh_group14, 1, NULL},
+	{"diffie-hellman-group14-sha256", 0, &kex_dh_group14_sha256, 1, NULL},
+	{"diffie-hellman-group14-sha1", 0, &kex_dh_group14_sha1, 1, NULL},
 	{"diffie-hellman-group1-sha1", 0, &kex_dh_group1, 1, NULL},
 #ifdef USE_KEXGUESS2
 	{KEXGUESS2_ALGO_NAME, KEXGUESS2_ALGO_ID, NULL, 1, NULL},
--- a/dbclient.1	Thu Dec 03 16:22:29 2015 +0300
+++ b/dbclient.1	Tue Dec 15 21:40:32 2015 +0800
@@ -127,6 +127,20 @@
 .B \-m \fIMAClist
 Specify a comma separated list of authentication MACs to enable. Use \fI-m help\fR to list possibilities.
 .TP
+.B \-o \fIoption
+Can be used to give options in the format used by OpenSSH config file. This is
+useful for specifying options for which there is no separate command-line flag.
+For full details of the options listed below, and their possible values, see
+ssh_config(5).
+
+For now only following options have been implemented:
+.RS
+.RS
+.TP
+ExitOnForwardFailure
+.RE
+.RE
+.TP
 .B \-s 
 The specified command will be requested as a subsystem, used for sftp. Dropbear doesn't implement sftp itself but the OpenSSH sftp client can be used eg \fIsftp -S dbclient user@host\fR
 .TP
--- a/debian/changelog	Thu Dec 03 16:22:29 2015 +0300
+++ b/debian/changelog	Tue Dec 15 21:40:32 2015 +0800
@@ -1,3 +1,9 @@
+dropbear (2015.71-0.1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Matt Johnston <[email protected]>  Thu, 3 Dec 2015 22:52:58 +0800
+
 dropbear (2015.70-0.1) unstable; urgency=low
 
   * New upstream release.
--- a/runopts.h	Thu Dec 03 16:22:29 2015 +0300
+++ b/runopts.h	Tue Dec 15 21:40:32 2015 +0800
@@ -72,7 +72,8 @@
 	int forkbg;
 	int usingsyslog;
 
-	/* ports is an array of the portcount listening ports */
+	/* ports and addresses are arrays of the portcount 
+	listening ports. strings are malloced. */
 	char *ports[DROPBEAR_MAX_PORTS];
 	unsigned int portcount;
 	char *addresses[DROPBEAR_MAX_PORTS];
@@ -139,6 +140,9 @@
 #ifdef ENABLE_CLI_PUBKEY_AUTH
 	m_list *privkeys; /* Keys to use for public-key auth */
 #endif
+#ifdef ENABLE_CLI_ANYTCPFWD
+	int exit_on_fwd_failure;
+#endif
 #ifdef ENABLE_CLI_REMOTETCPFWD
 	m_list * remotefwds;
 #endif
--- a/svr-runopts.c	Thu Dec 03 16:22:29 2015 +0300
+++ b/svr-runopts.c	Tue Dec 15 21:40:32 2015 +0800
@@ -33,7 +33,7 @@
 svr_runopts svr_opts; /* GLOBAL */
 
 static void printhelp(const char * progname);
-static void addportandaddress(char* spec);
+static void addportandaddress(const char* spec);
 static void loadhostkey(const char *keyfile, int fatal_duplicate);
 static void addhostkey(const char *keyfile);
 
@@ -348,54 +348,56 @@
 	}
 }
 
-static void addportandaddress(char* spec) {
-
-	char *myspec = NULL;
+static void addportandaddress(const char* spec) {
+	char *spec_copy = NULL, *myspec = NULL, *port = NULL, *address = NULL;
 
 	if (svr_opts.portcount < DROPBEAR_MAX_PORTS) {
 
 		/* We don't free it, it becomes part of the runopt state */
-		myspec = m_strdup(spec);
+		spec_copy = m_strdup(spec);
+		myspec = spec_copy;
 
 		if (myspec[0] == '[') {
 			myspec++;
-			svr_opts.ports[svr_opts.portcount] = strchr(myspec, ']');
-			if (svr_opts.ports[svr_opts.portcount] == NULL) {
+			port = strchr(myspec, ']');
+			if (!port) {
 				/* Unmatched [ -> exit */
 				dropbear_exit("Bad listen address");
 			}
-			svr_opts.ports[svr_opts.portcount][0] = '\0';
-			svr_opts.ports[svr_opts.portcount]++;
-			if (svr_opts.ports[svr_opts.portcount][0] != ':') {
+			port[0] = '\0';
+			port++;
+			if (port[0] != ':') {
 				/* Missing port -> exit */
 				dropbear_exit("Missing port");
 			}
 		} else {
 			/* search for ':', that separates address and port */
-			svr_opts.ports[svr_opts.portcount] = strrchr(myspec, ':');
+			port = strrchr(myspec, ':');
 		}
 
-		if (svr_opts.ports[svr_opts.portcount] == NULL) {
+		if (!port) {
 			/* no ':' -> the whole string specifies just a port */
-			svr_opts.ports[svr_opts.portcount] = myspec;
+			port = myspec;
 		} else {
 			/* Split the address/port */
-			svr_opts.ports[svr_opts.portcount][0] = '\0'; 
-			svr_opts.ports[svr_opts.portcount]++;
-			svr_opts.addresses[svr_opts.portcount] = myspec;
+			port[0] = '\0'; 
+			port++;
+			address = myspec;
 		}
 
-		if (svr_opts.addresses[svr_opts.portcount] == NULL) {
+		if (!address) {
 			/* no address given -> fill in the default address */
-			svr_opts.addresses[svr_opts.portcount] = m_strdup(DROPBEAR_DEFADDRESS);
+			address = DROPBEAR_DEFADDRESS;
 		}
 
-		if (svr_opts.ports[svr_opts.portcount][0] == '\0') {
+		if (port[0] == '\0') {
 			/* empty port -> exit */
 			dropbear_exit("Bad port");
 		}
-
+		svr_opts.ports[svr_opts.portcount] = m_strdup(port);
+		svr_opts.addresses[svr_opts.portcount] = m_strdup(address);
 		svr_opts.portcount++;
+		m_free(spec_copy);
 	}
 }
 
--- a/sysoptions.h	Thu Dec 03 16:22:29 2015 +0300
+++ b/sysoptions.h	Tue Dec 15 21:40:32 2015 +0800
@@ -4,7 +4,7 @@
  *******************************************************************/
 
 #ifndef DROPBEAR_VERSION
-#define DROPBEAR_VERSION "2015.70"
+#define DROPBEAR_VERSION "2015.71"
 #endif
 
 #define LOCAL_IDENT "SSH-2.0-dropbear_" DROPBEAR_VERSION