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Diffstat (limited to 'usr/src/cmd/ssh/sshd/auth-options.c')
-rw-r--r--usr/src/cmd/ssh/sshd/auth-options.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/usr/src/cmd/ssh/sshd/auth-options.c b/usr/src/cmd/ssh/sshd/auth-options.c
deleted file mode 100644
index b186cbe045..0000000000
--- a/usr/src/cmd/ssh/sshd/auth-options.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Author: Tatu Ylonen <ylo@cs.hut.fi>
- * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
- * All rights reserved
- * As far as I am concerned, the code I have written for this software
- * can be used freely for any purpose. Any derived versions of this
- * software must be clearly marked as such, and if the derived work is
- * incompatible with the protocol description in the RFC file, it must be
- * called by a name other than "ssh" or "Secure Shell".
- */
-
-#include "includes.h"
-RCSID("$OpenBSD: auth-options.c,v 1.26 2002/07/30 17:03:55 markus Exp $");
-
-#pragma ident "%Z%%M% %I% %E% SMI"
-
-#include "xmalloc.h"
-#include "match.h"
-#include "log.h"
-#include "canohost.h"
-#include "channels.h"
-#include "auth-options.h"
-#include "servconf.h"
-#include "misc.h"
-#include "auth.h"
-
-/* Flags set authorized_keys flags */
-int no_port_forwarding_flag = 0;
-int no_agent_forwarding_flag = 0;
-int no_x11_forwarding_flag = 0;
-int no_pty_flag = 0;
-
-/* "command=" option. */
-char *forced_command = NULL;
-
-/* "environment=" options. */
-struct envstring *custom_environment = NULL;
-
-extern ServerOptions options;
-
-void
-auth_clear_options(void)
-{
- no_agent_forwarding_flag = 0;
- no_port_forwarding_flag = 0;
- no_pty_flag = 0;
- no_x11_forwarding_flag = 0;
- while (custom_environment) {
- struct envstring *ce = custom_environment;
- custom_environment = ce->next;
- xfree(ce->s);
- xfree(ce);
- }
- if (forced_command) {
- xfree(forced_command);
- forced_command = NULL;
- }
- channel_clear_permitted_opens();
- auth_debug_reset();
-}
-
-/*
- * return 1 if access is granted, 0 if not.
- * side effect: sets key option flags
- */
-int
-auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
-{
- const char *cp;
- int i;
-
- /* reset options */
- auth_clear_options();
-
- if (!opts)
- return 1;
-
- while (*opts && *opts != ' ' && *opts != '\t') {
- cp = "no-port-forwarding";
- if (strncasecmp(opts, cp, strlen(cp)) == 0) {
- auth_debug_add("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.");
- 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.");
- 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.");
- no_pty_flag = 1;
- opts += strlen(cp);
- goto next_option;
- }
- cp = "command=\"";
- if (strncasecmp(opts, cp, strlen(cp)) == 0) {
- opts += strlen(cp);
- forced_command = xmalloc(strlen(opts) + 1);
- i = 0;
- while (*opts) {
- if (*opts == '"')
- break;
- if (*opts == '\\' && opts[1] == '"') {
- opts += 2;
- forced_command[i++] = '"';
- continue;
- }
- forced_command[i++] = *opts++;
- }
- if (!*opts) {
- debug("%.100s, line %lu: missing end quote",
- file, linenum);
- auth_debug_add("%.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);
- opts++;
- goto next_option;
- }
- cp = "environment=\"";
- if (options.permit_user_env &&
- strncasecmp(opts, cp, strlen(cp)) == 0) {
- char *s;
- struct envstring *new_envstring;
-
- opts += strlen(cp);
- s = xmalloc(strlen(opts) + 1);
- i = 0;
- while (*opts) {
- if (*opts == '"')
- break;
- if (*opts == '\\' && opts[1] == '"') {
- opts += 2;
- s[i++] = '"';
- continue;
- }
- s[i++] = *opts++;
- }
- if (!*opts) {
- debug("%.100s, line %lu: missing end quote",
- file, linenum);
- auth_debug_add("%.100s, line %lu: missing end quote",
- file, linenum);
- xfree(s);
- goto bad_option;
- }
- s[i] = 0;
- auth_debug_add("Adding to environment: %.900s", s);
- debug("Adding to environment: %.900s", s);
- opts++;
- new_envstring = xmalloc(sizeof(struct envstring));
- new_envstring->s = s;
- new_envstring->next = custom_environment;
- custom_environment = new_envstring;
- goto next_option;
- }
- cp = "from=\"";
- if (strncasecmp(opts, cp, strlen(cp)) == 0) {
- const char *remote_ip = get_remote_ipaddr();
- const char *remote_host = get_canonical_hostname(
- options.verify_reverse_mapping);
- char *patterns = xmalloc(strlen(opts) + 1);
-
- opts += strlen(cp);
- i = 0;
- while (*opts) {
- if (*opts == '"')
- break;
- if (*opts == '\\' && opts[1] == '"') {
- opts += 2;
- patterns[i++] = '"';
- continue;
- }
- patterns[i++] = *opts++;
- }
- if (!*opts) {
- debug("%.100s, line %lu: missing end quote",
- file, linenum);
- auth_debug_add("%.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);
- 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 "
- "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 *patterns = xmalloc(strlen(opts) + 1);
-
- opts += strlen(cp);
- i = 0;
- while (*opts) {
- if (*opts == '"')
- break;
- if (*opts == '\\' && opts[1] == '"') {
- opts += 2;
- patterns[i++] = '"';
- continue;
- }
- patterns[i++] = *opts++;
- }
- if (!*opts) {
- debug("%.100s, line %lu: missing end quote",
- file, linenum);
- auth_debug_add("%.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);
- 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);
- xfree(patterns);
- goto bad_option;
- }
- if (options.allow_tcp_forwarding)
- channel_add_permitted_opens(host, port);
- xfree(patterns);
- goto next_option;
- }
-next_option:
- /*
- * Skip the comma, and move to the next option
- * (or break out if there are no more).
- */
- if (!*opts)
- fatal("Bugs in auth-options.c option processing.");
- if (*opts == ' ' || *opts == '\t')
- break; /* End of options. */
- if (*opts != ',')
- goto bad_option;
- opts++;
- /* Process the next option. */
- }
-
- 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",
- file, linenum, opts);
-
- auth_debug_send();
-
- /* deny access */
- return 0;
-}
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