diff options
Diffstat (limited to 'crypto/openssh/auth-rsa.c')
| -rw-r--r-- | crypto/openssh/auth-rsa.c | 56 |
1 files changed, 29 insertions, 27 deletions
diff --git a/crypto/openssh/auth-rsa.c b/crypto/openssh/auth-rsa.c index e8bfa16..59bee18 100644 --- a/crypto/openssh/auth-rsa.c +++ b/crypto/openssh/auth-rsa.c @@ -14,21 +14,23 @@ */ #include "includes.h" -RCSID("$OpenBSD: auth-rsa.c,v 1.32 2000/10/14 12:19:45 markus Exp $"); +RCSID("$OpenBSD: auth-rsa.c,v 1.40 2001/04/06 21:00:07 markus Exp $"); + +#include <openssl/rsa.h> +#include <openssl/md5.h> #include "rsa.h" #include "packet.h" #include "xmalloc.h" -#include "ssh.h" +#include "ssh1.h" #include "mpaux.h" #include "uidswap.h" #include "match.h" -#include "servconf.h" #include "auth-options.h" - -#include <openssl/rsa.h> -#include <openssl/md5.h> - +#include "pathnames.h" +#include "log.h" +#include "servconf.h" +#include "auth.h" /* import */ extern ServerOptions options; @@ -37,7 +39,7 @@ extern ServerOptions options; * Session identifier that is used to bind key exchange and authentication * responses to a particular session. */ -extern unsigned char session_id[16]; +extern u_char session_id[16]; /* * The .ssh/authorized_keys file contains public keys, one per line, in the @@ -60,9 +62,9 @@ auth_rsa_challenge_dialog(RSA *pk) { BIGNUM *challenge, *encrypted_challenge; BN_CTX *ctx; - unsigned char buf[32], mdbuf[16], response[16]; + u_char buf[32], mdbuf[16], response[16]; MD5_CTX md; - unsigned int i; + u_int i; int plen, len; encrypted_challenge = BN_new(); @@ -120,11 +122,11 @@ auth_rsa_challenge_dialog(RSA *pk) int auth_rsa(struct passwd *pw, BIGNUM *client_n) { - char line[8192], file[1024]; + char line[8192], file[MAXPATHLEN]; int authenticated; - unsigned int bits; + u_int bits; FILE *f; - unsigned long linenum = 0; + u_long linenum = 0; struct stat st; RSA *pk; @@ -133,11 +135,11 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n) return 0; /* Temporarily use the user's uid. */ - temporarily_use_uid(pw->pw_uid); + temporarily_use_uid(pw); /* The authorized keys. */ snprintf(file, sizeof file, "%.500s/%.100s", pw->pw_dir, - SSH_USER_PERMITTED_KEYS); + _PATH_SSH_USER_PERMITTED_KEYS); /* Fail quietly if file does not exist */ if (stat(file, &st) < 0) { @@ -165,10 +167,10 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n) "bad ownership or modes for '%s'.", pw->pw_name, file); fail = 1; } else { - /* Check path to SSH_USER_PERMITTED_KEYS */ + /* Check path to _PATH_SSH_USER_PERMITTED_KEYS */ int i; static const char *check[] = { - "", SSH_USER_DIR, NULL + "", _PATH_SSH_USER_DIR, NULL }; for (i = 0; check[i]; i++) { snprintf(line, sizeof line, "%.500s/%.100s", pw->pw_dir, check[i]); @@ -184,8 +186,8 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n) } if (fail) { fclose(f); - log("%s",buf); - packet_send_debug("%s",buf); + log("%s", buf); + packet_send_debug("%s", buf); restore_uid(); return 0; } @@ -231,19 +233,13 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n) } } else options = NULL; - /* - * If our options do not allow this key to be used, - * do not send challenge. - */ - if (!auth_parse_options(pw, options, linenum)) - continue; /* Parse the key from the line. */ if (!auth_rsa_read_key(&cp, &bits, pk->e, pk->n)) { debug("%.100s, line %lu: bad key syntax", - SSH_USER_PERMITTED_KEYS, linenum); + file, linenum); packet_send_debug("%.100s, line %lu: bad key syntax", - SSH_USER_PERMITTED_KEYS, linenum); + file, linenum); continue; } /* cp now points to the comment part. */ @@ -259,6 +255,12 @@ auth_rsa(struct passwd *pw, BIGNUM *client_n) file, linenum, BN_num_bits(pk->n), bits); /* We have found the desired key. */ + /* + * If our options do not allow this key to be used, + * do not send challenge. + */ + if (!auth_parse_options(pw, options, file, linenum)) + continue; /* Perform the challenge-response dialog for this key. */ if (!auth_rsa_challenge_dialog(pk)) { |
