*/
#include "includes.h"
-RCSID("$OpenBSD: ssh-keygen.c,v 1.53 2001/03/26 23:23:24 markus Exp $");
+RCSID("$OpenBSD: ssh-keygen.c,v 1.126 2005/05/26 09:08:12 dtucker Exp $");
#include <openssl/evp.h>
#include <openssl/pem.h>
#include "bufaux.h"
#include "pathnames.h"
#include "log.h"
-#include "readpass.h"
+#include "misc.h"
+#include "match.h"
+#include "hostfile.h"
+
+#ifdef SMARTCARD
+#include "scard.h"
+#endif
+#include "dns.h"
/* Number of bits in the RSA/DSA key. This value can be changed on the command line. */
-int bits = 1024;
+u_int32_t bits = 1024;
/*
* Flag indicating that we just want to change the passphrase. This can be
int quiet = 0;
+/* Flag indicating that we want to hash a known_hosts file */
+int hash_hosts = 0;
+/* Flag indicating that we want lookup a host in known_hosts file */
+int find_host = 0;
+/* Flag indicating that we want to delete a host from a known_hosts file */
+int delete_host = 0;
+
/* Flag indicating that we just want to see the key fingerprint */
int print_fingerprint = 0;
int print_bubblebabble = 0;
int convert_to_ssh2 = 0;
int convert_from_ssh2 = 0;
int print_public = 0;
+int print_generic = 0;
-/* default to RSA for SSH-1 */
-char *key_type_name = "rsa1";
+char *key_type_name = NULL;
/* argv0 */
-#ifdef HAVE___PROGNAME
extern char *__progname;
-#else
-char *__progname;
-#endif
char hostname[MAXHOSTNAMELEN];
-void
+/* moduli.c */
+int gen_candidates(FILE *, u_int32_t, u_int32_t, BIGNUM *);
+int prime_test(FILE *, FILE *, u_int32_t, u_int32_t);
+
+static void
ask_filename(struct passwd *pw, const char *prompt)
{
char buf[1024];
char *name = NULL;
- switch (key_type_from_name(key_type_name)) {
- case KEY_RSA1:
- name = _PATH_SSH_CLIENT_IDENTITY;
- break;
- case KEY_DSA:
- name = _PATH_SSH_CLIENT_ID_DSA;
- break;
- case KEY_RSA:
+ if (key_type_name == NULL)
name = _PATH_SSH_CLIENT_ID_RSA;
- break;
- default:
- fprintf(stderr, "bad key type");
- exit(1);
- break;
- }
+ else
+ switch (key_type_from_name(key_type_name)) {
+ case KEY_RSA1:
+ name = _PATH_SSH_CLIENT_IDENTITY;
+ break;
+ case KEY_DSA:
+ name = _PATH_SSH_CLIENT_ID_DSA;
+ break;
+ case KEY_RSA:
+ name = _PATH_SSH_CLIENT_ID_RSA;
+ break;
+ default:
+ fprintf(stderr, "bad key type");
+ exit(1);
+ break;
+ }
+
snprintf(identity_file, sizeof(identity_file), "%s/%s", pw->pw_dir, name);
fprintf(stderr, "%s (%s): ", prompt, identity_file);
- fflush(stderr);
if (fgets(buf, sizeof(buf), stdin) == NULL)
exit(1);
if (strchr(buf, '\n'))
have_identity = 1;
}
-Key *
-try_load_pem_key(char *filename)
+static Key *
+load_identity(char *filename)
{
char *pass;
Key *prv;
- prv = key_load_private(filename, "", NULL);
+ prv = key_load_private(filename, "", NULL);
if (prv == NULL) {
- pass = read_passphrase("Enter passphrase: ", 1);
+ if (identity_passphrase)
+ pass = xstrdup(identity_passphrase);
+ else
+ pass = read_passphrase("Enter passphrase: ",
+ RP_ALLOW_STDIN);
prv = key_load_private(filename, pass, NULL);
memset(pass, 0, strlen(pass));
xfree(pass);
}
#define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----"
-#define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----"
+#define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----"
#define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----"
#define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb
-void
+static void
do_convert_to_ssh2(struct passwd *pw)
{
- Key *prv;
- int len;
+ Key *k;
+ u_int len;
u_char *blob;
struct stat st;
perror(identity_file);
exit(1);
}
- prv = try_load_pem_key(identity_file);
- if (prv == NULL) {
- fprintf(stderr, "load failed\n");
+ if ((k = key_load_public(identity_file, NULL)) == NULL) {
+ if ((k = load_identity(identity_file)) == NULL) {
+ fprintf(stderr, "load failed\n");
+ exit(1);
+ }
+ }
+ if (k->type == KEY_RSA1) {
+ fprintf(stderr, "version 1 keys are not supported\n");
+ exit(1);
+ }
+ if (key_to_blob(k, &blob, &len) <= 0) {
+ fprintf(stderr, "key_to_blob failed\n");
exit(1);
}
- key_to_blob(prv, &blob, &len);
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN);
fprintf(stdout,
- "Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n",
- key_size(prv), key_type(prv),
+ "Comment: \"%u-bit %s, converted from OpenSSH by %s@%s\"\n",
+ key_size(k), key_type(k),
pw->pw_name, hostname);
dump_base64(stdout, blob, len);
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END);
- key_free(prv);
+ key_free(k);
xfree(blob);
exit(0);
}
-void
+static void
buffer_get_bignum_bits(Buffer *b, BIGNUM *value)
{
- int bits = buffer_get_int(b);
- int bytes = (bits + 7) / 8;
+ u_int bignum_bits = buffer_get_int(b);
+ u_int bytes = (bignum_bits + 7) / 8;
if (buffer_len(b) < bytes)
fatal("buffer_get_bignum_bits: input buffer too small: "
"need %d have %d", bytes, buffer_len(b));
- BN_bin2bn((u_char *)buffer_ptr(b), bytes, value);
+ BN_bin2bn(buffer_ptr(b), bytes, value);
buffer_consume(b, bytes);
}
-Key *
-do_convert_private_ssh2_from_blob(char *blob, int blen)
+static Key *
+do_convert_private_ssh2_from_blob(u_char *blob, u_int blen)
{
Buffer b;
Key *key = NULL;
- int ignore, magic, rlen, ktype;
char *type, *cipher;
+ u_char *sig, data[] = "abcde12345";
+ int magic, rlen, ktype, i1, i2, i3, i4;
+ u_int slen;
+ u_long e;
buffer_init(&b);
buffer_append(&b, blob, blen);
buffer_free(&b);
return NULL;
}
- ignore = buffer_get_int(&b);
+ i1 = buffer_get_int(&b);
type = buffer_get_string(&b, NULL);
cipher = buffer_get_string(&b, NULL);
- ignore = buffer_get_int(&b);
- ignore = buffer_get_int(&b);
- ignore = buffer_get_int(&b);
-
+ i2 = buffer_get_int(&b);
+ i3 = buffer_get_int(&b);
+ i4 = buffer_get_int(&b);
+ debug("ignore (%d %d %d %d)", i1,i2,i3,i4);
if (strcmp(cipher, "none") != 0) {
error("unsupported cipher %s", cipher);
xfree(cipher);
} else if (strstr(type, "rsa")) {
ktype = KEY_RSA;
} else {
+ buffer_free(&b);
xfree(type);
return NULL;
}
buffer_get_bignum_bits(&b, key->dsa->priv_key);
break;
case KEY_RSA:
- if (!BN_set_word(key->rsa->e, (u_long) buffer_get_char(&b))) {
+ e = buffer_get_char(&b);
+ debug("e %lx", e);
+ if (e < 30) {
+ e <<= 8;
+ e += buffer_get_char(&b);
+ debug("e %lx", e);
+ e <<= 8;
+ e += buffer_get_char(&b);
+ debug("e %lx", e);
+ }
+ if (!BN_set_word(key->rsa->e, e)) {
buffer_free(&b);
key_free(key);
return NULL;
buffer_get_bignum_bits(&b, key->rsa->iqmp);
buffer_get_bignum_bits(&b, key->rsa->q);
buffer_get_bignum_bits(&b, key->rsa->p);
- generate_additional_parameters(key->rsa);
+ rsa_generate_additional_parameters(key->rsa);
break;
}
rlen = buffer_len(&b);
- if(rlen != 0)
+ if (rlen != 0)
error("do_convert_private_ssh2_from_blob: "
"remaining bytes in key blob %d", rlen);
buffer_free(&b);
-#ifdef DEBUG_PK
- {
- u_int slen;
- u_char *sig, data[10] = "abcde12345";
- key_sign(key, &sig, &slen, data, sizeof data);
- key_verify(key, sig, slen, data, sizeof data);
- free(sig);
- }
-#endif
+ /* try the key */
+ key_sign(key, &sig, &slen, data, sizeof(data));
+ key_verify(key, sig, slen, data, sizeof(data));
+ xfree(sig);
return key;
}
-void
+static void
do_convert_from_ssh2(struct passwd *pw)
{
Key *k;
int blen;
+ u_int len;
char line[1024], *p;
- char blob[8096];
+ u_char blob[8096];
char encoded[8096];
struct stat st;
int escaped = 0, private = 0, ok;
strstr(line, ": ") != NULL) {
if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL)
private = 1;
- fprintf(stderr, "ignore: %s", line);
+ if (strstr(line, " END ") != NULL) {
+ break;
+ }
+ /* fprintf(stderr, "ignore: %s", line); */
continue;
}
if (escaped) {
escaped--;
- fprintf(stderr, "escaped: %s", line);
+ /* fprintf(stderr, "escaped: %s", line); */
continue;
}
*p = '\0';
strlcat(encoded, line, sizeof(encoded));
}
- blen = uudecode(encoded, (u_char *)blob, sizeof(blob));
+ len = strlen(encoded);
+ if (((len % 4) == 3) &&
+ (encoded[len-1] == '=') &&
+ (encoded[len-2] == '=') &&
+ (encoded[len-3] == '='))
+ encoded[len-3] = '\0';
+ blen = uudecode(encoded, blob, sizeof(blob));
if (blen < 0) {
fprintf(stderr, "uudecode failed.\n");
exit(1);
exit(1);
}
key_free(k);
- fprintf(stdout, "\n");
+ if (!private)
+ fprintf(stdout, "\n");
fclose(fp);
exit(0);
}
-void
+static void
do_print_public(struct passwd *pw)
{
Key *prv;
perror(identity_file);
exit(1);
}
- prv = try_load_pem_key(identity_file);
+ prv = load_identity(identity_file);
if (prv == NULL) {
fprintf(stderr, "load failed\n");
exit(1);
exit(0);
}
-void
+#ifdef SMARTCARD
+static void
+do_upload(struct passwd *pw, const char *sc_reader_id)
+{
+ Key *prv = NULL;
+ struct stat st;
+ int ret;
+
+ if (!have_identity)
+ ask_filename(pw, "Enter file in which the key is");
+ if (stat(identity_file, &st) < 0) {
+ perror(identity_file);
+ exit(1);
+ }
+ prv = load_identity(identity_file);
+ if (prv == NULL) {
+ error("load failed");
+ exit(1);
+ }
+ ret = sc_put_key(prv, sc_reader_id);
+ key_free(prv);
+ if (ret < 0)
+ exit(1);
+ logit("loading key done");
+ exit(0);
+}
+
+static void
+do_download(struct passwd *pw, const char *sc_reader_id)
+{
+ Key **keys = NULL;
+ int i;
+
+ keys = sc_get_keys(sc_reader_id, NULL);
+ if (keys == NULL)
+ fatal("cannot read public key from smartcard");
+ for (i = 0; keys[i]; i++) {
+ key_write(keys[i], stdout);
+ key_free(keys[i]);
+ fprintf(stdout, "\n");
+ }
+ xfree(keys);
+ exit(0);
+}
+#endif /* SMARTCARD */
+
+static void
do_fingerprint(struct passwd *pw)
{
FILE *f;
Key *public;
char *comment = NULL, *cp, *ep, line[16*1024], *fp;
- int i, skip = 0, num = 1, invalid = 1, rep, fptype;
+ int i, skip = 0, num = 1, invalid = 1;
+ enum fp_rep rep;
+ enum fp_type fptype;
struct stat st;
fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5;
public = key_load_public(identity_file, &comment);
if (public != NULL) {
fp = key_fingerprint(public, fptype, rep);
- printf("%d %s %s\n", key_size(public), fp, comment);
+ printf("%u %s %s\n", key_size(public), fp, comment);
key_free(public);
xfree(comment);
xfree(fp);
if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) {
int quoted = 0;
comment = cp;
- for (; *cp && (quoted || (*cp != ' ' && *cp != '\t')); cp++) {
+ for (; *cp && (quoted || (*cp != ' ' &&
+ *cp != '\t')); cp++) {
if (*cp == '\\' && cp[1] == '"')
cp++; /* Skip both */
else if (*cp == '"')
}
comment = *cp ? cp : comment;
fp = key_fingerprint(public, fptype, rep);
- printf("%d %s %s\n", key_size(public), fp,
+ printf("%u %s %s\n", key_size(public), fp,
comment ? comment : "no comment");
xfree(fp);
key_free(public);
fclose(f);
}
if (invalid) {
- printf("%s is not a valid key file.\n", identity_file);
+ printf("%s is not a public key file.\n", identity_file);
exit(1);
}
exit(0);
}
+static void
+print_host(FILE *f, char *name, Key *public, int hash)
+{
+ if (hash && (name = host_hash(name, NULL, 0)) == NULL)
+ fatal("hash_host failed");
+ fprintf(f, "%s ", name);
+ if (!key_write(public, f))
+ fatal("key_write failed");
+ fprintf(f, "\n");
+}
+
+static void
+do_known_hosts(struct passwd *pw, const char *name)
+{
+ FILE *in, *out = stdout;
+ Key *public;
+ char *cp, *cp2, *kp, *kp2;
+ char line[16*1024], tmp[MAXPATHLEN], old[MAXPATHLEN];
+ int c, i, skip = 0, inplace = 0, num = 0, invalid = 0, has_unhashed = 0;
+
+ if (!have_identity) {
+ cp = tilde_expand_filename(_PATH_SSH_USER_HOSTFILE, pw->pw_uid);
+ if (strlcpy(identity_file, cp, sizeof(identity_file)) >=
+ sizeof(identity_file))
+ fatal("Specified known hosts path too long");
+ xfree(cp);
+ have_identity = 1;
+ }
+ if ((in = fopen(identity_file, "r")) == NULL)
+ fatal("fopen: %s", strerror(errno));
+
+ /*
+ * Find hosts goes to stdout, hash and deletions happen in-place
+ * A corner case is ssh-keygen -HF foo, which should go to stdout
+ */
+ if (!find_host && (hash_hosts || delete_host)) {
+ if (strlcpy(tmp, identity_file, sizeof(tmp)) >= sizeof(tmp) ||
+ strlcat(tmp, ".XXXXXXXXXX", sizeof(tmp)) >= sizeof(tmp) ||
+ strlcpy(old, identity_file, sizeof(old)) >= sizeof(old) ||
+ strlcat(old, ".old", sizeof(old)) >= sizeof(old))
+ fatal("known_hosts path too long");
+ umask(077);
+ if ((c = mkstemp(tmp)) == -1)
+ fatal("mkstemp: %s", strerror(errno));
+ if ((out = fdopen(c, "w")) == NULL) {
+ c = errno;
+ unlink(tmp);
+ fatal("fdopen: %s", strerror(c));
+ }
+ inplace = 1;
+ }
+
+ while (fgets(line, sizeof(line), in)) {
+ num++;
+ i = strlen(line) - 1;
+ if (line[i] != '\n') {
+ error("line %d too long: %.40s...", num, line);
+ skip = 1;
+ invalid = 1;
+ continue;
+ }
+ if (skip) {
+ skip = 0;
+ continue;
+ }
+ line[i] = '\0';
+
+ /* Skip leading whitespace, empty and comment lines. */
+ for (cp = line; *cp == ' ' || *cp == '\t'; cp++)
+ ;
+ if (!*cp || *cp == '\n' || *cp == '#') {
+ if (inplace)
+ fprintf(out, "%s\n", cp);
+ continue;
+ }
+ /* Find the end of the host name portion. */
+ for (kp = cp; *kp && *kp != ' ' && *kp != '\t'; kp++)
+ ;
+ if (*kp == '\0' || *(kp + 1) == '\0') {
+ error("line %d missing key: %.40s...",
+ num, line);
+ invalid = 1;
+ continue;
+ }
+ *kp++ = '\0';
+ kp2 = kp;
+
+ public = key_new(KEY_RSA1);
+ if (key_read(public, &kp) != 1) {
+ kp = kp2;
+ key_free(public);
+ public = key_new(KEY_UNSPEC);
+ if (key_read(public, &kp) != 1) {
+ error("line %d invalid key: %.40s...",
+ num, line);
+ key_free(public);
+ invalid = 1;
+ continue;
+ }
+ }
+
+ if (*cp == HASH_DELIM) {
+ if (find_host || delete_host) {
+ cp2 = host_hash(name, cp, strlen(cp));
+ if (cp2 == NULL) {
+ error("line %d: invalid hashed "
+ "name: %.64s...", num, line);
+ invalid = 1;
+ continue;
+ }
+ c = (strcmp(cp2, cp) == 0);
+ if (find_host && c) {
+ printf("# Host %s found: "
+ "line %d type %s\n", name,
+ num, key_type(public));
+ print_host(out, cp, public, 0);
+ }
+ if (delete_host && !c)
+ print_host(out, cp, public, 0);
+ } else if (hash_hosts)
+ print_host(out, cp, public, 0);
+ } else {
+ if (find_host || delete_host) {
+ c = (match_hostname(name, cp,
+ strlen(cp)) == 1);
+ if (find_host && c) {
+ printf("# Host %s found: "
+ "line %d type %s\n", name,
+ num, key_type(public));
+ print_host(out, cp, public, hash_hosts);
+ }
+ if (delete_host && !c)
+ print_host(out, cp, public, 0);
+ } else if (hash_hosts) {
+ for (cp2 = strsep(&cp, ",");
+ cp2 != NULL && *cp2 != '\0';
+ cp2 = strsep(&cp, ",")) {
+ if (strcspn(cp2, "*?!") != strlen(cp2))
+ fprintf(stderr, "Warning: "
+ "ignoring host name with "
+ "metacharacters: %.64s\n",
+ cp2);
+ else
+ print_host(out, cp2, public, 1);
+ }
+ has_unhashed = 1;
+ }
+ }
+ key_free(public);
+ }
+ fclose(in);
+
+ if (invalid) {
+ fprintf(stderr, "%s is not a valid known_host file.\n",
+ identity_file);
+ if (inplace) {
+ fprintf(stderr, "Not replacing existing known_hosts "
+ "file because of errors\n");
+ fclose(out);
+ unlink(tmp);
+ }
+ exit(1);
+ }
+
+ if (inplace) {
+ fclose(out);
+
+ /* Backup existing file */
+ if (unlink(old) == -1 && errno != ENOENT)
+ fatal("unlink %.100s: %s", old, strerror(errno));
+ if (link(identity_file, old) == -1)
+ fatal("link %.100s to %.100s: %s", identity_file, old,
+ strerror(errno));
+ /* Move new one into place */
+ if (rename(tmp, identity_file) == -1) {
+ error("rename\"%s\" to \"%s\": %s", tmp, identity_file,
+ strerror(errno));
+ unlink(tmp);
+ unlink(old);
+ exit(1);
+ }
+
+ fprintf(stderr, "%s updated.\n", identity_file);
+ fprintf(stderr, "Original contents retained as %s\n", old);
+ if (has_unhashed) {
+ fprintf(stderr, "WARNING: %s contains unhashed "
+ "entries\n", old);
+ fprintf(stderr, "Delete this file to ensure privacy "
+ "of hostnames\n");
+ }
+ }
+
+ exit(0);
+}
+
/*
* Perform changing a passphrase. The argument is the passwd structure
* for the current user.
*/
-void
+static void
do_change_passphrase(struct passwd *pw)
{
char *comment;
if (identity_passphrase)
old_passphrase = xstrdup(identity_passphrase);
else
- old_passphrase = read_passphrase("Enter old passphrase: ", 1);
- private = key_load_private(identity_file, old_passphrase , &comment);
+ old_passphrase =
+ read_passphrase("Enter old passphrase: ",
+ RP_ALLOW_STDIN);
+ private = key_load_private(identity_file, old_passphrase,
+ &comment);
memset(old_passphrase, 0, strlen(old_passphrase));
xfree(old_passphrase);
if (private == NULL) {
passphrase2 = NULL;
} else {
passphrase1 =
- read_passphrase("Enter new passphrase (empty for no passphrase): ", 1);
- passphrase2 = read_passphrase("Enter same passphrase again: ", 1);
+ read_passphrase("Enter new passphrase (empty for no "
+ "passphrase): ", RP_ALLOW_STDIN);
+ passphrase2 = read_passphrase("Enter same passphrase again: ",
+ RP_ALLOW_STDIN);
/* Verify that they are the same. */
if (strcmp(passphrase1, passphrase2) != 0) {
/* Save the file using the new passphrase. */
if (!key_save_private(private, identity_file, passphrase1, comment)) {
- printf("Saving the key failed: %s: %s.\n",
- identity_file, strerror(errno));
+ printf("Saving the key failed: %s.\n", identity_file);
memset(passphrase1, 0, strlen(passphrase1));
xfree(passphrase1);
key_free(private);
exit(0);
}
+/*
+ * Print the SSHFP RR.
+ */
+static void
+do_print_resource_record(struct passwd *pw, char *hname)
+{
+ Key *public;
+ char *comment = NULL;
+ struct stat st;
+
+ if (!have_identity)
+ ask_filename(pw, "Enter file in which the key is");
+ if (stat(identity_file, &st) < 0) {
+ perror(identity_file);
+ exit(1);
+ }
+ public = key_load_public(identity_file, &comment);
+ if (public != NULL) {
+ export_dns_rr(hname, public, stdout, print_generic);
+ key_free(public);
+ xfree(comment);
+ exit(0);
+ }
+ if (comment)
+ xfree(comment);
+
+ printf("failed to read v2 public key from %s.\n", identity_file);
+ exit(1);
+}
+
/*
* Change the comment of a private key file.
*/
-void
+static void
do_change_comment(struct passwd *pw)
{
char new_comment[1024], *comment, *passphrase;
else if (identity_new_passphrase)
passphrase = xstrdup(identity_new_passphrase);
else
- passphrase = read_passphrase("Enter passphrase: ", 1);
+ passphrase = read_passphrase("Enter passphrase: ",
+ RP_ALLOW_STDIN);
/* Try to load using the passphrase. */
private = key_load_private(identity_file, passphrase, &comment);
if (private == NULL) {
fprintf(stderr, "Comments are only supported for RSA1 keys.\n");
key_free(private);
exit(1);
- }
+ }
printf("Key now has comment '%s'\n", comment);
if (identity_comment) {
/* Save the file using the new passphrase. */
if (!key_save_private(private, identity_file, passphrase, new_comment)) {
- printf("Saving the key failed: %s: %s.\n",
- identity_file, strerror(errno));
+ printf("Saving the key failed: %s.\n", identity_file);
memset(passphrase, 0, strlen(passphrase));
xfree(passphrase);
key_free(private);
exit(0);
}
-void
+static void
usage(void)
{
- printf("Usage: %s [-lBpqxXyc] [-t type] [-b bits] [-f file] [-C comment] "
- "[-N new-pass] [-P pass]\n", __progname);
+ fprintf(stderr, "Usage: %s [options]\n", __progname);
+ fprintf(stderr, "Options:\n");
+ fprintf(stderr, " -a trials Number of trials for screening DH-GEX moduli.\n");
+ fprintf(stderr, " -B Show bubblebabble digest of key file.\n");
+ fprintf(stderr, " -b bits Number of bits in the key to create.\n");
+ fprintf(stderr, " -C comment Provide new comment.\n");
+ fprintf(stderr, " -c Change comment in private and public key files.\n");
+#ifdef SMARTCARD
+ fprintf(stderr, " -D reader Download public key from smartcard.\n");
+#endif /* SMARTCARD */
+ fprintf(stderr, " -e Convert OpenSSH to IETF SECSH key file.\n");
+ fprintf(stderr, " -F hostname Find hostname in known hosts file.\n");
+ fprintf(stderr, " -f filename Filename of the key file.\n");
+ fprintf(stderr, " -G file Generate candidates for DH-GEX moduli.\n");
+ fprintf(stderr, " -g Use generic DNS resource record format.\n");
+ fprintf(stderr, " -H Hash names in known_hosts file.\n");
+ fprintf(stderr, " -i Convert IETF SECSH to OpenSSH key file.\n");
+ fprintf(stderr, " -l Show fingerprint of key file.\n");
+ fprintf(stderr, " -M memory Amount of memory (MB) to use for generating DH-GEX moduli.\n");
+ fprintf(stderr, " -N phrase Provide new passphrase.\n");
+ fprintf(stderr, " -P phrase Provide old passphrase.\n");
+ fprintf(stderr, " -p Change passphrase of private key file.\n");
+ fprintf(stderr, " -q Quiet.\n");
+ fprintf(stderr, " -R hostname Remove host from known_hosts file.\n");
+ fprintf(stderr, " -r hostname Print DNS resource record.\n");
+ fprintf(stderr, " -S start Start point (hex) for generating DH-GEX moduli.\n");
+ fprintf(stderr, " -T file Screen candidates for DH-GEX moduli.\n");
+ fprintf(stderr, " -t type Specify type of key to create.\n");
+#ifdef SMARTCARD
+ fprintf(stderr, " -U reader Upload private key to smartcard.\n");
+#endif /* SMARTCARD */
+ fprintf(stderr, " -v Verbose.\n");
+ fprintf(stderr, " -W gen Generator to use for generating DH-GEX moduli.\n");
+ fprintf(stderr, " -y Read private key file and print public key.\n");
+
exit(1);
}
int
main(int ac, char **av)
{
- char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2;
+ char dotsshdir[MAXPATHLEN], comment[1024], *passphrase1, *passphrase2;
+ char out_file[MAXPATHLEN], *reader_id = NULL;
+ char *rr_hostname = NULL;
Key *private, *public;
struct passwd *pw;
- int opt, type, fd;
struct stat st;
+ int opt, type, fd, download = 0;
+ u_int32_t memory = 0, generator_wanted = 0, trials = 100;
+ int do_gen_candidates = 0, do_screen_candidates = 0;
+ int log_level = SYSLOG_LEVEL_INFO;
+ BIGNUM *start = NULL;
FILE *f;
+ const char *errstr;
extern int optind;
extern char *optarg;
- __progname = get_progname(av[0]);
- init_rng();
- seed_rng();
+ __progname = ssh_get_progname(av[0]);
SSLeay_add_all_algorithms();
+ log_init(av[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1);
+
+ init_rng();
+ seed_rng();
/* we need this for the home * directory. */
pw = getpwuid(getuid());
exit(1);
}
- while ((opt = getopt(ac, av, "dqpclBRxXyb:f:t:P:N:C:")) != -1) {
+ while ((opt = getopt(ac, av,
+ "degiqpclBHvxXyF:b:f:t:U:D:P:N:C:r:g:R:T:G:M:S:a:W:")) != -1) {
switch (opt) {
case 'b':
- bits = atoi(optarg);
- if (bits < 512 || bits > 32768) {
- printf("Bits has bad value.\n");
- exit(1);
- }
+ bits = strtonum(optarg, 512, 32768, &errstr);
+ if (errstr)
+ fatal("Bits has bad value %s (%s)",
+ optarg, errstr);
+ break;
+ case 'F':
+ find_host = 1;
+ rr_hostname = optarg;
+ break;
+ case 'H':
+ hash_hosts = 1;
+ break;
+ case 'R':
+ delete_host = 1;
+ rr_hostname = optarg;
break;
-
case 'l':
print_fingerprint = 1;
break;
-
case 'B':
print_bubblebabble = 1;
break;
-
case 'p':
change_passphrase = 1;
break;
-
case 'c':
change_comment = 1;
break;
-
case 'f':
- strlcpy(identity_file, optarg, sizeof(identity_file));
+ if (strlcpy(identity_file, optarg, sizeof(identity_file)) >=
+ sizeof(identity_file))
+ fatal("Identity filename too long");
have_identity = 1;
break;
-
+ case 'g':
+ print_generic = 1;
+ break;
case 'P':
identity_passphrase = optarg;
break;
-
case 'N':
identity_new_passphrase = optarg;
break;
-
case 'C':
identity_comment = optarg;
break;
-
case 'q':
quiet = 1;
break;
-
- case 'R':
- /* unused */
- exit(0);
- break;
-
+ case 'e':
case 'x':
+ /* export key */
convert_to_ssh2 = 1;
break;
-
+ case 'i':
case 'X':
+ /* import key */
convert_from_ssh2 = 1;
break;
-
case 'y':
print_public = 1;
break;
-
case 'd':
key_type_name = "dsa";
break;
-
case 't':
key_type_name = optarg;
break;
-
+ case 'D':
+ download = 1;
+ case 'U':
+ reader_id = optarg;
+ break;
+ case 'v':
+ if (log_level == SYSLOG_LEVEL_INFO)
+ log_level = SYSLOG_LEVEL_DEBUG1;
+ else {
+ if (log_level >= SYSLOG_LEVEL_DEBUG1 &&
+ log_level < SYSLOG_LEVEL_DEBUG3)
+ log_level++;
+ }
+ break;
+ case 'r':
+ rr_hostname = optarg;
+ break;
+ case 'W':
+ generator_wanted = strtonum(optarg, 1, UINT_MAX, &errstr);
+ if (errstr)
+ fatal("Desired generator has bad value: %s (%s)",
+ optarg, errstr);
+ break;
+ case 'a':
+ trials = strtonum(optarg, 1, UINT_MAX, &errstr);
+ if (errstr)
+ fatal("Invalid number of trials: %s (%s)",
+ optarg, errstr);
+ break;
+ case 'M':
+ memory = strtonum(optarg, 1, UINT_MAX, &errstr);
+ if (errstr) {
+ fatal("Memory limit is %s: %s", errstr, optarg);
+ }
+ break;
+ case 'G':
+ do_gen_candidates = 1;
+ if (strlcpy(out_file, optarg, sizeof(out_file)) >=
+ sizeof(out_file))
+ fatal("Output filename too long");
+ break;
+ case 'T':
+ do_screen_candidates = 1;
+ if (strlcpy(out_file, optarg, sizeof(out_file)) >=
+ sizeof(out_file))
+ fatal("Output filename too long");
+ break;
+ case 'S':
+ /* XXX - also compare length against bits */
+ if (BN_hex2bn(&start, optarg) == 0)
+ fatal("Invalid start point.");
+ break;
case '?':
default:
usage();
}
}
+
+ /* reinit */
+ log_init(av[0], log_level, SYSLOG_FACILITY_USER, 1);
+
if (optind < ac) {
printf("Too many arguments.\n");
usage();
printf("Can only have one of -p and -c.\n");
usage();
}
+ if (delete_host || hash_hosts || find_host)
+ do_known_hosts(pw, rr_hostname);
if (print_fingerprint || print_bubblebabble)
do_fingerprint(pw);
if (change_passphrase)
do_convert_from_ssh2(pw);
if (print_public)
do_print_public(pw);
+ if (rr_hostname != NULL) {
+ do_print_resource_record(pw, rr_hostname);
+ }
+ if (reader_id != NULL) {
+#ifdef SMARTCARD
+ if (download)
+ do_download(pw, reader_id);
+ else
+ do_upload(pw, reader_id);
+#else /* SMARTCARD */
+ fatal("no support for smartcards.");
+#endif /* SMARTCARD */
+ }
+
+ if (do_gen_candidates) {
+ FILE *out = fopen(out_file, "w");
+
+ if (out == NULL) {
+ error("Couldn't open modulus candidate file \"%s\": %s",
+ out_file, strerror(errno));
+ return (1);
+ }
+ if (gen_candidates(out, memory, bits, start) != 0)
+ fatal("modulus candidate generation failed\n");
+
+ return (0);
+ }
+
+ if (do_screen_candidates) {
+ FILE *in;
+ FILE *out = fopen(out_file, "w");
+
+ if (have_identity && strcmp(identity_file, "-") != 0) {
+ if ((in = fopen(identity_file, "r")) == NULL) {
+ fatal("Couldn't open modulus candidate "
+ "file \"%s\": %s", identity_file,
+ strerror(errno));
+ }
+ } else
+ in = stdin;
+
+ if (out == NULL) {
+ fatal("Couldn't open moduli file \"%s\": %s",
+ out_file, strerror(errno));
+ }
+ if (prime_test(in, out, trials, generator_wanted) != 0)
+ fatal("modulus screening failed\n");
+ return (0);
+ }
arc4random_stir();
+ if (key_type_name == NULL) {
+ printf("You must specify a key type (-t).\n");
+ usage();
+ }
type = key_type_from_name(key_type_name);
if (type == KEY_UNSPEC) {
fprintf(stderr, "unknown key type %s\n", key_type_name);
else {
passphrase_again:
passphrase1 =
- read_passphrase("Enter passphrase (empty for no passphrase): ", 1);
- passphrase2 = read_passphrase("Enter same passphrase again: ", 1);
+ read_passphrase("Enter passphrase (empty for no "
+ "passphrase): ", RP_ALLOW_STDIN);
+ passphrase2 = read_passphrase("Enter same passphrase again: ",
+ RP_ALLOW_STDIN);
if (strcmp(passphrase1, passphrase2) != 0) {
- /* The passphrases do not match. Clear them and retry. */
+ /*
+ * The passphrases do not match. Clear them and
+ * retry.
+ */
memset(passphrase1, 0, strlen(passphrase1));
memset(passphrase2, 0, strlen(passphrase2));
xfree(passphrase1);
/* Save the key with the given passphrase and comment. */
if (!key_save_private(private, identity_file, passphrase1, comment)) {
- printf("Saving the key failed: %s: %s.\n",
- identity_file, strerror(errno));
+ printf("Saving the key failed: %s.\n", identity_file);
memset(passphrase1, 0, strlen(passphrase1));
xfree(passphrase1);
exit(1);
andersk / openssh.git / blobdiff