=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/auth-options.c,v retrieving revision 1.16.2.3 retrieving revision 1.17 diff -u -r1.16.2.3 -r1.17 --- src/usr.bin/ssh/auth-options.c 2002/06/02 22:56:09 1.16.2.3 +++ src/usr.bin/ssh/auth-options.c 2001/05/30 12:55:06 1.17 @@ -10,20 +10,16 @@ */ #include "includes.h" -RCSID("$OpenBSD: auth-options.c,v 1.16.2.3 2002/06/02 22:56:09 miod Exp $"); +RCSID("$OpenBSD: auth-options.c,v 1.17 2001/05/30 12:55:06 markus Exp $"); #include "packet.h" #include "xmalloc.h" #include "match.h" #include "log.h" #include "canohost.h" -#include "channels.h" +#include "channel.h" #include "auth-options.h" #include "servconf.h" -#include "bufaux.h" -#include "misc.h" -#include "monitor_wrap.h" -#include "auth.h" /* Flags set authorized_keys flags */ int no_port_forwarding_flag = 0; @@ -57,7 +53,6 @@ forced_command = NULL; } channel_clear_permitted_opens(); - auth_debug_reset(); } /* @@ -79,28 +74,28 @@ while (*opts && *opts != ' ' && *opts != '\t') { cp = "no-port-forwarding"; if (strncasecmp(opts, cp, strlen(cp)) == 0) { - auth_debug_add("Port forwarding disabled."); + packet_send_debug("Port forwarding disabled."); no_port_forwarding_flag = 1; opts += strlen(cp); goto next_option; } cp = "no-agent-forwarding"; if (strncasecmp(opts, cp, strlen(cp)) == 0) { - auth_debug_add("Agent forwarding disabled."); + packet_send_debug("Agent forwarding disabled."); no_agent_forwarding_flag = 1; opts += strlen(cp); goto next_option; } cp = "no-X11-forwarding"; if (strncasecmp(opts, cp, strlen(cp)) == 0) { - auth_debug_add("X11 forwarding disabled."); + packet_send_debug("X11 forwarding disabled."); no_x11_forwarding_flag = 1; opts += strlen(cp); goto next_option; } cp = "no-pty"; if (strncasecmp(opts, cp, strlen(cp)) == 0) { - auth_debug_add("Pty allocation disabled."); + packet_send_debug("Pty allocation disabled."); no_pty_flag = 1; opts += strlen(cp); goto next_option; @@ -123,14 +118,14 @@ if (!*opts) { debug("%.100s, line %lu: missing end quote", file, linenum); - auth_debug_add("%.100s, line %lu: missing end quote", + packet_send_debug("%.100s, line %lu: missing end quote", file, linenum); xfree(forced_command); forced_command = NULL; goto bad_option; } forced_command[i] = 0; - auth_debug_add("Forced command: %.900s", forced_command); + packet_send_debug("Forced command: %.900s", forced_command); opts++; goto next_option; } @@ -155,13 +150,13 @@ if (!*opts) { debug("%.100s, line %lu: missing end quote", file, linenum); - auth_debug_add("%.100s, line %lu: missing end quote", + packet_send_debug("%.100s, line %lu: missing end quote", file, linenum); xfree(s); goto bad_option; } s[i] = 0; - auth_debug_add("Adding to environment: %.900s", s); + packet_send_debug("Adding to environment: %.900s", s); debug("Adding to environment: %.900s", s); opts++; new_envstring = xmalloc(sizeof(struct envstring)); @@ -172,9 +167,10 @@ } cp = "from=\""; if (strncasecmp(opts, cp, strlen(cp)) == 0) { + int mname, mip; const char *remote_ip = get_remote_ipaddr(); const char *remote_host = get_canonical_hostname( - options.verify_reverse_mapping); + options.reverse_mapping_check); char *patterns = xmalloc(strlen(opts) + 1); opts += strlen(cp); @@ -192,34 +188,42 @@ if (!*opts) { debug("%.100s, line %lu: missing end quote", file, linenum); - auth_debug_add("%.100s, line %lu: missing end quote", + packet_send_debug("%.100s, line %lu: missing end quote", file, linenum); xfree(patterns); goto bad_option; } patterns[i] = 0; opts++; - if (match_host_and_ip(remote_host, remote_ip, - patterns) != 1) { - xfree(patterns); + /* + * Deny access if we get a negative + * match for the hostname or the ip + * or if we get not match at all + */ + mname = match_hostname(remote_host, patterns, + strlen(patterns)); + mip = match_hostname(remote_ip, patterns, + strlen(patterns)); + xfree(patterns); + if (mname == -1 || mip == -1 || + (mname != 1 && mip != 1)) { log("Authentication tried for %.100s with " "correct key but not from a permitted " "host (host=%.200s, ip=%.200s).", pw->pw_name, remote_host, remote_ip); - auth_debug_add("Your host '%.200s' is not " + packet_send_debug("Your host '%.200s' is not " "permitted to use this key for login.", remote_host); /* deny access */ return 0; } - xfree(patterns); /* Host name matches. */ goto next_option; } cp = "permitopen=\""; if (strncasecmp(opts, cp, strlen(cp)) == 0) { - char host[256], sport[6]; u_short port; + char *c, *ep; char *patterns = xmalloc(strlen(opts) + 1); opts += strlen(cp); @@ -237,32 +241,35 @@ if (!*opts) { debug("%.100s, line %lu: missing end quote", file, linenum); - auth_debug_add("%.100s, line %lu: missing end quote", + packet_send_debug("%.100s, line %lu: missing end quote", file, linenum); xfree(patterns); goto bad_option; } patterns[i] = 0; opts++; - if (sscanf(patterns, "%255[^:]:%5[0-9]", host, sport) != 2 && - sscanf(patterns, "%255[^/]/%5[0-9]", host, sport) != 2) { - debug("%.100s, line %lu: Bad permitopen specification " - "<%.100s>", file, linenum, patterns); - auth_debug_add("%.100s, line %lu: " - "Bad permitopen specification", file, linenum); + c = strchr(patterns, ':'); + if (c == NULL) { + debug("%.100s, line %lu: permitopen: missing colon <%.100s>", + file, linenum, patterns); + packet_send_debug("%.100s, line %lu: missing colon", + file, linenum); xfree(patterns); goto bad_option; } - if ((port = a2port(sport)) == 0) { - debug("%.100s, line %lu: Bad permitopen port <%.100s>", - file, linenum, sport); - auth_debug_add("%.100s, line %lu: " - "Bad permitopen port", file, linenum); + *c = 0; + c++; + port = strtol(c, &ep, 0); + if (c == ep) { + debug("%.100s, line %lu: permitopen: missing port <%.100s>", + file, linenum, patterns); + packet_send_debug("%.100s, line %lu: missing port", + file, linenum); xfree(patterns); goto bad_option; } if (options.allow_tcp_forwarding) - channel_add_permitted_opens(host, port); + channel_add_permitted_opens(patterns, port); xfree(patterns); goto next_option; } @@ -280,22 +287,14 @@ opts++; /* Process the next option. */ } - - if (!use_privsep) - auth_debug_send(); - /* grant access */ return 1; bad_option: log("Bad options in %.100s file, line %lu: %.50s", file, linenum, opts); - auth_debug_add("Bad options in %.100s file, line %lu: %.50s", + packet_send_debug("Bad options in %.100s file, line %lu: %.50s", file, linenum, opts); - - if (!use_privsep) - auth_debug_send(); - /* deny access */ return 0; }