src/usr.bin/ssh/auth-rh-rsa.c - diff

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version 1.3, 1999/11/09 23:09:58

version 1.4, 1999/11/11 22:58:38

Line 21

#include "ssh.h"

#include "xmalloc.h"

#include "uidswap.h"

#include "servconf.h"

/* Tries to authenticate the user using the .rhosts file and the host using

its host key. Returns true if authentication succeeds.

its host key. Returns true if authentication succeeds. */

.rhosts and .shosts will be ignored if ignore_rhosts is non-zero. */

int auth_rhosts_rsa(struct passwd *pw, const char *client_user,

unsigned int client_host_key_bits,

BIGNUM *client_host_key_e, BIGNUM *client_host_key_n,

BIGNUM *client_host_key_e, BIGNUM *client_host_key_n)

int ignore_rhosts, int strict_modes)

{

extern ServerOptions options;

const char *canonical_hostname;

HostStatus host_status;

BIGNUM *ke, *kn;

Line 38

debug("Trying rhosts with RSA host authentication for %.100s", client_user);

/* Check if we would accept it using rhosts authentication. */

if (!auth_rhosts(pw, client_user, ignore_rhosts, strict_modes))

if (!auth_rhosts(pw, client_user, options.ignore_rhosts, options.strict_modes))

return 0;

canonical_hostname = get_canonical_hostname();

Line 53

host_status = check_host_in_hostfile(SSH_SYSTEM_HOSTFILE, canonical_hostname,

client_host_key_bits, client_host_key_e,

client_host_key_n, ke, kn);

/* Check user host file. */

if (host_status != HOST_OK) {

/* 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 (strict_modes &&

if (options.strict_modes &&

(stat(user_hostfile, &st) == 0) &&

((st.st_uid != 0 && st.st_uid != pw->pw_uid) ||

(st.st_mode & 022) != 0)) {