network/dsniff: Add more patches.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

5 files changed, 299 insertions, 2 deletions

diff --git a/network/dsniff/dsniff.SlackBuild b/network/dsniff/dsniff.SlackBuild
index f55dbdb26b..764025181b 100644
--- a/network/dsniff/dsniff.SlackBuild
+++ b/network/dsniff/dsniff.SlackBuild
@@ -26,7 +26,7 @@
 PRGNAM=dsniff
 VERSION=${VERSION:-2.4b1}
 SRCVER=${SRCVER:-2.4}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -76,7 +76,10 @@ find -L . \
 # This patch adds support for libnet 1.1.x, it's heavily based on Gentoo ebuild
 # which, in turn, is heavily based on Debian patch set. And I added a couple
 # of bits myself in the mix too... - sid77
-patch -p1 < $CWD/libnet11$LIBDIRSUFFIX.patch
+patch -p1 < $CWD/patches/libnet11$LIBDIRSUFFIX.patch
+
+patch -p1 < $CWD/patches/arpspoof-r-switch.patch
+patch -p1 < $CWD/patches/rewrite-and-modernize-POP-decoder.patch
 
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
diff --git a/network/dsniff/patches/arpspoof-r-switch.patch b/network/dsniff/patches/arpspoof-r-switch.patch
new file mode 100644
index 0000000000..df81ce3241
--- /dev/null
+++ b/network/dsniff/patches/arpspoof-r-switch.patch
@@ -0,0 +1,166 @@
+
+Debian bug #650749
+arpspoof: add -r switch to poison both directions
+
+diff --git a/arpspoof.8 b/arpspoof.8
+index a05b5d3..544e06c 100644
+--- a/arpspoof.8
++++ b/arpspoof.8
+@@ -9,7 +9,7 @@ intercept packets on a switched LAN
+ .na
+ .nf
+ .fi
+-\fBarpspoof\fR [\fB-i \fIinterface\fR] [\fB-t \fItarget\fR] \fIhost\fR
++\fBarpspoof\fR [\fB\-i \fIinterface\fR] [\fB\-t \fItarget\fR] [\fB\-r\fR] \fIhost\fR
+ .SH DESCRIPTION
+ .ad
+ .fi
+@@ -26,6 +26,9 @@ Specify the interface to use.
+ .IP "\fB-t \fItarget\fR"
+ Specify a particular host to ARP poison (if not specified, all hosts
+ on the LAN).
++.IP "\fB\-r\fR"
++Poison both hosts (host and target) to capture traffic in both directions.
++(only valid in conjuntion with \-t)
+ .IP \fIhost\fR
+ Specify the host you wish to intercept packets for (usually the local
+ gateway).
+diff --git a/arpspoof.c b/arpspoof.c
+index 7cdbbf8..f51b699 100644
+--- a/arpspoof.c
++++ b/arpspoof.c
+@@ -7,6 +7,8 @@
+  * Copyright (c) 1999 Dug Song <dugsong@monkey.org>
+  *
+  * $Id: arpspoof.c,v 1.5 2001/03/15 08:32:58 dugsong Exp $
++ *
++ * Improved 2011 by Stefan Tomanek <stefa@pico.ruhr.de>
+  */
+ 
+ #include "config.h"
+@@ -31,12 +33,13 @@ static libnet_t *l;
+ static struct ether_addr spoof_mac, target_mac;
+ static in_addr_t spoof_ip, target_ip;
+ static char *intf;
++static int poison_reverse;
+ 
+ static void
+ usage(void)
+ {
+ 	fprintf(stderr, "Version: " VERSION "\n"
+-		"Usage: arpspoof [-i interface] [-t target] host\n");
++		"Usage: arpspoof [-i interface] [-t target] [-r] host\n");
+ 	exit(1);
+ }
+ 
+@@ -133,18 +136,30 @@ arp_find(in_addr_t ip, struct ether_addr *mac)
+ static void
+ cleanup(int sig)
+ {
++	int fw = arp_find(spoof_ip, &spoof_mac);
++	int bw = poison_reverse && target_ip && arp_find(target_ip, &target_mac);
+ 	int i;
+-	
+-	if (arp_find(spoof_ip, &spoof_mac)) {
+-		for (i = 0; i < 3; i++) {
+-			/* XXX - on BSD, requires ETHERSPOOF kernel. */
++
++	fprintf(stderr, "Cleaning up and re-arping targets...\n");
++	for (i = 0; i < 5; i++) {
++		/* XXX - on BSD, requires ETHERSPOOF kernel. */
++		if (fw) {
+ 			arp_send(l, ARPOP_REPLY,
+ 				 (u_int8_t *)&spoof_mac, spoof_ip,
+ 				 (target_ip ? (u_int8_t *)&target_mac : NULL),
+ 				 target_ip);
++			/* we have to wait a moment before sending the next packet */
++			sleep(1);
++		}
++		if (bw) {
++			arp_send(l, ARPOP_REPLY,
++				 (u_int8_t *)&target_mac, target_ip,
++				 (u_int8_t *)&spoof_mac,
++				 spoof_ip);
+ 			sleep(1);
+ 		}
+ 	}
++
+ 	exit(0);
+ }
+ 
+@@ -156,11 +171,12 @@ main(int argc, char *argv[])
+ 	char pcap_ebuf[PCAP_ERRBUF_SIZE];
+ 	char libnet_ebuf[LIBNET_ERRBUF_SIZE];
+ 	int c;
+-	
++
+ 	intf = NULL;
+ 	spoof_ip = target_ip = 0;
+-	
+-	while ((c = getopt(argc, argv, "i:t:h?V")) != -1) {
++	poison_reverse = 0;
++
++	while ((c = getopt(argc, argv, "ri:t:h?V")) != -1) {
+ 		switch (c) {
+ 		case 'i':
+ 			intf = optarg;
+@@ -169,6 +185,9 @@ main(int argc, char *argv[])
+ 			if ((target_ip = libnet_name2addr4(l, optarg, LIBNET_RESOLVE)) == -1)
+ 				usage();
+ 			break;
++		case 'r':
++			poison_reverse = 1;
++			break;
+ 		default:
+ 			usage();
+ 		}
+@@ -178,7 +197,12 @@ main(int argc, char *argv[])
+ 	
+ 	if (argc != 1)
+ 		usage();
+-	
++
++	if (poison_reverse && !target_ip) {
++		errx(1, "Spoofing the reverse path (-r) is only available when specifying a target (-t).");
++		usage();
++	}
++
+ 	if ((spoof_ip = libnet_name2addr4(l, argv[0], LIBNET_RESOLVE)) == -1)
+ 		usage();
+ 	
+@@ -191,18 +215,29 @@ main(int argc, char *argv[])
+ 	if (target_ip != 0 && !arp_find(target_ip, &target_mac))
+ 		errx(1, "couldn't arp for host %s",
+ 		     libnet_addr2name4(target_ip, LIBNET_DONT_RESOLVE));
+-	
++
++	if (poison_reverse) {
++		if (!arp_find(spoof_ip, &spoof_mac)) {
++			errx(1, "couldn't arp for spoof host %s",
++			     libnet_addr2name4(spoof_ip, LIBNET_DONT_RESOLVE));
++		}
++	}
++
+ 	signal(SIGHUP, cleanup);
+ 	signal(SIGINT, cleanup);
+ 	signal(SIGTERM, cleanup);
+-	
++
+ 	for (;;) {
+ 		arp_send(l, ARPOP_REPLY, NULL, spoof_ip,
+ 			 (target_ip ? (u_int8_t *)&target_mac : NULL),
+ 			 target_ip);
++		if (poison_reverse) {
++			arp_send(l, ARPOP_REPLY, NULL, target_ip, (uint8_t *)&spoof_mac, spoof_ip);
++		}
++
+ 		sleep(2);
+ 	}
+ 	/* NOTREACHED */
+-	
++
+ 	exit(0);
+ }
+-- 
+1.7.5.4
+
diff --git a/network/dsniff/libnet11.patch b/network/dsniff/patches/libnet11.patch
index 61a98ef91a..61a98ef91a 100644
--- a/network/dsniff/libnet11.patch
+++ b/network/dsniff/patches/libnet11.patch
diff --git a/network/dsniff/libnet1164.patch b/network/dsniff/patches/libnet1164.patch
index be11e6e2e5..be11e6e2e5 100644
--- a/network/dsniff/libnet1164.patch
+++ b/network/dsniff/patches/libnet1164.patch
diff --git a/network/dsniff/patches/rewrite-and-modernize-POP-decoder.patch b/network/dsniff/patches/rewrite-and-modernize-POP-decoder.patch
new file mode 100644
index 0000000000..1203a47c91
--- /dev/null
+++ b/network/dsniff/patches/rewrite-and-modernize-POP-decoder.patch
@@ -0,0 +1,128 @@
+
+Debian bug #647583
+Rewrite and modernize POP decoder
+
+diff --git a/decode_pop.c b/decode_pop.c
+index 04044f5..767da41 100644
+--- a/decode_pop.c
++++ b/decode_pop.c
+@@ -6,6 +6,8 @@
+  * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+  *
+  * $Id: decode_pop.c,v 1.4 2001/03/15 08:33:02 dugsong Exp $
++ *
++ * Rewritten by Stefan Tomanek 2011 <stefan@pico.ruhr.de>
+  */
+ 
+ #include "config.h"
+@@ -45,32 +47,88 @@ int
+ decode_pop(u_char *buf, int len, u_char *obuf, int olen)
+ {
+ 	char *p;
++	char *s;
++	int n;
+ 	int i, j;
++	char *user;
++	char *password;
++	enum {
++		NONE,
++		AUTHPLAIN,
++		AUTHLOGIN,
++		USERPASS
++	} mode = NONE;
++
+ 	
+ 	obuf[0] = '\0';
+ 	
+ 	for (p = strtok(buf, "\r\n"); p != NULL; p = strtok(NULL, "\r\n")) {
+-		if (strncasecmp(p, "AUTH PLAIN", 10) == 0 ||
+-		    strncasecmp(p, "AUTH LOGIN", 10) == 0) {
+-			strlcat(obuf, p, olen);
+-			strlcat(obuf, "\n", olen);
+-			
+-			/* Decode SASL auth. */
+-			for (i = 0; i < 2 && (p = strtok(NULL, "\r\n")); i++) {
+-				strlcat(obuf, p, olen);
+-				j = base64_pton(p, p, strlen(p));
+-				p[j] = '\0';
+-				strlcat(obuf, " [", olen);
+-				strlcat(obuf, p, olen);
+-				strlcat(obuf, "]\n", olen);
++		if (mode == NONE) {
++			user = NULL;
++			password = NULL;
++			if (strncasecmp(p, "AUTH PLAIN", 10) == 0) {
++				mode = AUTHPLAIN;
++				continue;
++			}
++			if (strncasecmp(p, "AUTH LOGIN", 10) == 0) {
++				mode = AUTHLOGIN;
++				continue;
++			}
++			if (strncasecmp(p, "USER ", 5) == 0) {
++				mode = USERPASS;
++				/* the traditional login cuts right to the case,
++				 * so no continue here
++				 */
+ 			}
+ 		}
+-		/* Save regular POP2, POP3 auth info. */
+-		else if (strncasecmp(p, "USER ", 5) == 0 ||
+-			 strncasecmp(p, "PASS ", 5) == 0 ||
+-			 strncasecmp(p, "HELO ", 5) == 0) {
+-			strlcat(obuf, p, olen);
+-			strlcat(obuf, "\n", olen);
++		printf("(%d) %s\n", mode, p);
++		if (mode == USERPASS) {
++			if (strncasecmp(p, "USER ", 5) == 0) {
++				user = &p[5];
++			} else if (strncasecmp(p, "PASS ", 5) == 0) {
++				password = &p[5];
++			}
++		}
++
++		if (mode == AUTHPLAIN) {
++			j = base64_pton(p, p, strlen(p));
++			p[j] = '\0';
++			n = 0;
++			s = p;
++			/* p consists of three parts, divided by \0 */
++			while (s <= &p[j] && n<=3) {
++				if (n == 0) {
++					/* we do not process this portion yet */
++				} else if (n == 1) {
++					user = s;
++				} else if (n == 2) {
++					password = s;
++				}
++				n++;
++				while (*s) s++;
++				s++;
++			}
++		}
++
++		if (mode == AUTHLOGIN) {
++			j = base64_pton(p, p, strlen(p));
++			p[j] = '\0';
++			if (! user) {
++				user = p;
++			} else {
++				password = p;
++				/* got everything we need :-) */
++			}
++		}
++
++		if (user && password) {
++			strlcat(obuf, "\nusername [", olen);
++			strlcat(obuf, user, olen);
++			strlcat(obuf, "] password [", olen);
++			strlcat(obuf, password, olen);
++			strlcat(obuf, "]\n", olen);
++
++			mode = NONE;
+ 		}
+ 	}
+ 	return (strlen(obuf));
+-- 
+1.7.5.4
+