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Diff for /src/usr.bin/ssh/Attic/auth-rh-rsa.c between version 1.17 and 1.17.2.7

version 1.17, 2000/10/03 18:03:03 version 1.17.2.7, 2002/03/08 17:04:41
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 RCSID("$OpenBSD$");  RCSID("$OpenBSD$");
   
 #include "packet.h"  #include "packet.h"
 #include "ssh.h"  
 #include "xmalloc.h"  
 #include "uidswap.h"  #include "uidswap.h"
   #include "log.h"
 #include "servconf.h"  #include "servconf.h"
   
 #include <openssl/rsa.h>  
 #include <openssl/dsa.h>  
 #include "key.h"  #include "key.h"
 #include "hostfile.h"  #include "hostfile.h"
   #include "pathnames.h"
   #include "auth.h"
   #include "canohost.h"
   
 /*  /*
  * Tries to authenticate the user using the .rhosts file and the host using   * Tries to authenticate the user using the .rhosts file and the host using
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  */   */
   
 int  int
 auth_rhosts_rsa(struct passwd *pw, const char *client_user, RSA *client_host_key)  auth_rhosts_rsa(struct passwd *pw, const char *client_user, Key *client_host_key)
 {  {
         extern ServerOptions options;          extern ServerOptions options;
         const char *canonical_hostname;          const char *canonical_hostname;
         HostStatus host_status;          HostStatus host_status;
         Key *client_key, *found;  
   
         debug("Trying rhosts with RSA host authentication for client user %.100s", client_user);          debug("Trying rhosts with RSA host authentication for client user %.100s", client_user);
   
         if (pw == NULL || client_host_key == NULL)          if (pw == NULL || client_host_key == NULL || client_host_key->rsa == NULL)
                 return 0;                  return 0;
   
         /* Check if we would accept it using rhosts authentication. */          /* Check if we would accept it using rhosts authentication. */
         if (!auth_rhosts(pw, client_user))          if (!auth_rhosts(pw, client_user))
                 return 0;                  return 0;
   
         canonical_hostname = get_canonical_hostname();          canonical_hostname = get_canonical_hostname(
               options.verify_reverse_mapping);
   
         debug("Rhosts RSA authentication: canonical host %.900s", canonical_hostname);          debug("Rhosts RSA authentication: canonical host %.900s", canonical_hostname);
   
         /* wrap the RSA key into a 'generic' key */          host_status = check_key_in_hostfiles(pw, client_host_key,
         client_key = key_new(KEY_RSA);              canonical_hostname, _PATH_SSH_SYSTEM_HOSTFILE,
         BN_copy(client_key->rsa->e, client_host_key->e);              options.ignore_user_known_hosts ? NULL : _PATH_SSH_USER_HOSTFILE);
         BN_copy(client_key->rsa->n, client_host_key->n);  
         found = key_new(KEY_RSA);  
   
         /* Check if we know the host and its host key. */  
         host_status = check_host_in_hostfile(SSH_SYSTEM_HOSTFILE, canonical_hostname,  
             client_key, found);  
   
         /* Check user host file unless ignored. */  
         if (host_status != HOST_OK && !options.ignore_user_known_hosts) {  
                 struct stat st;  
                 char *user_hostfile = tilde_expand_filename(SSH_USER_HOSTFILE, pw->pw_uid);  
                 /*  
                  * Check file permissions of SSH_USER_HOSTFILE, auth_rsa()  
                  * did already check pw->pw_dir, but there is a race XXX  
                  */  
                 if (options.strict_modes &&  
                     (stat(user_hostfile, &st) == 0) &&  
                     ((st.st_uid != 0 && st.st_uid != pw->pw_uid) ||  
                      (st.st_mode & 022) != 0)) {  
                         log("Rhosts RSA authentication refused for %.100s: bad owner or modes for %.200s",  
                             pw->pw_name, user_hostfile);  
                 } else {  
                         /* XXX race between stat and the following open() */  
                         temporarily_use_uid(pw->pw_uid);  
                         host_status = check_host_in_hostfile(user_hostfile, canonical_hostname,  
                             client_key, found);  
                         restore_uid();  
                 }  
                 xfree(user_hostfile);  
         }  
         key_free(client_key);  
         key_free(found);  
   
         if (host_status != HOST_OK) {          if (host_status != HOST_OK) {
                 debug("Rhosts with RSA host authentication denied: unknown or invalid host key");                  debug("Rhosts with RSA host authentication denied: unknown or invalid host key");
                 packet_send_debug("Your host key cannot be verified: unknown or invalid host key.");                  packet_send_debug("Your host key cannot be verified: unknown or invalid host key.");
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         /* A matching host key was found and is known. */          /* A matching host key was found and is known. */
   
         /* Perform the challenge-response dialog with the client for the host key. */          /* Perform the challenge-response dialog with the client for the host key. */
         if (!auth_rsa_challenge_dialog(client_host_key)) {          if (!auth_rsa_challenge_dialog(client_host_key->rsa)) {
                 log("Client on %.800s failed to respond correctly to host authentication.",                  log("Client on %.800s failed to respond correctly to host authentication.",
                     canonical_hostname);                      canonical_hostname);
                 return 0;                  return 0;
Legend:
Removed from v.1.17  
changed lines
  Added in v.1.17.2.7