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[onak.git] / keyid.c
diff --git a/keyid.c b/keyid.c
index 29c61f00137134f0685d5bdc382a25a3ac12b2a8..d114852bd3081b2f44da24fd785ccce3bada8dfe 100644 (file)
--- a/keyid.c
+++ b/keyid.c
 /*
  * keyid.c - Routines to calculate key IDs.
  *
 /*
  * keyid.c - Routines to calculate key IDs.
  *
- * Jonathan McDowell <noodles@earth.li>
+ * Copyright 2002,2011 Jonathan McDowell <noodles@earth.li>
  *
  *
- * Copyright 2002 Project Purple
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #include <string.h>
 #include <sys/types.h>
 #include <arpa/inet.h>
 
  */
 
 #include <string.h>
 #include <sys/types.h>
 #include <arpa/inet.h>
 
+#include "config.h"
 #include "keyid.h"
 #include "keystructs.h"
 #include "keyid.h"
 #include "keystructs.h"
-#include "log.h"
+#include "onak.h"
 #include "parsekey.h"
 #include "parsekey.h"
-#include "md5.h"
 #include "mem.h"
 #include "merge.h"
 #include "mem.h"
 #include "merge.h"
+
+#ifdef HAVE_NETTLE
+#include <nettle/md5.h>
+#include <nettle/sha.h>
+#else
+#include "md5.h"
 #include "sha1.h"
 #include "sha1.h"
+#endif
 
 
 /**
  *     get_keyid - Given a public key returns the keyid.
  *     @publickey: The key to calculate the id for.
  */
 
 
 /**
  *     get_keyid - Given a public key returns the keyid.
  *     @publickey: The key to calculate the id for.
  */
-uint64_t get_keyid(struct openpgp_publickey *publickey)
+onak_status_t get_keyid(struct openpgp_publickey *publickey, uint64_t *keyid)
 {
 {
-       return (get_packetid(publickey->publickey));
+       return (get_packetid(publickey->publickey, keyid));
 }
 
 /**
  *     get_fingerprint - Given a public key returns the fingerprint.
  *     @publickey: The key to calculate the id for.
 }
 
 /**
  *     get_fingerprint - Given a public key returns the fingerprint.
  *     @publickey: The key to calculate the id for.
- *     @fingerprint: The fingerprint (must be at least 20 bytes of space). 
+ *     @fingerprint: The fingerprint (must be at least 20 bytes of space).
  *     @len: The length of the returned fingerprint.
  *
  *     This function returns the fingerprint for a given public key. As Type 3
  *     fingerprints are 16 bytes and Type 4 are 20 the len field indicates
  *     which we've returned.
  */
  *     @len: The length of the returned fingerprint.
  *
  *     This function returns the fingerprint for a given public key. As Type 3
  *     fingerprints are 16 bytes and Type 4 are 20 the len field indicates
  *     which we've returned.
  */
-unsigned char *get_fingerprint(struct openpgp_packet *packet,
+onak_status_t get_fingerprint(struct openpgp_packet *packet,
        unsigned char *fingerprint,
        size_t *len)
 {
        unsigned char *fingerprint,
        size_t *len)
 {
-       SHA1_CTX sha_ctx;
+       struct sha1_ctx sha_ctx;
        struct md5_ctx md5_context;
        unsigned char c;
        size_t         modlen, explen;
 
        struct md5_ctx md5_context;
        unsigned char c;
        size_t         modlen, explen;
 
-       log_assert(fingerprint != NULL);
-       log_assert(len != NULL);
+       if (fingerprint == NULL)
+               return ONAK_E_INVALID_PARAM;
+       if (len == NULL)
+               return ONAK_E_INVALID_PARAM;
 
        *len = 0;
 
        switch (packet->data[0]) {
        case 2:
        case 3:
 
        *len = 0;
 
        switch (packet->data[0]) {
        case 2:
        case 3:
-               md5_init_ctx(&md5_context);
+               md5_init(&md5_context);
 
                /*
                 * MD5 the modulus and exponent.
                 */
                modlen = ((packet->data[8] << 8) +
                         packet->data[9] + 7) >> 3;
 
                /*
                 * MD5 the modulus and exponent.
                 */
                modlen = ((packet->data[8] << 8) +
                         packet->data[9] + 7) >> 3;
-               md5_process_bytes(&packet->data[10], modlen, &md5_context);
+               md5_update(&md5_context, modlen, &packet->data[10]);
 
                explen = ((packet->data[10+modlen] << 8) +
                         packet->data[11+modlen] + 7) >> 3;
 
                explen = ((packet->data[10+modlen] << 8) +
                         packet->data[11+modlen] + 7) >> 3;
-               md5_process_bytes(&packet->data[12 + modlen], explen,
-                               &md5_context);
+               md5_update(&md5_context, explen, &packet->data[12 + modlen]);
 
 
-               md5_finish_ctx(&md5_context, fingerprint);
                *len = 16;
                *len = 16;
+               md5_digest(&md5_context, *len, fingerprint);
 
                break;
 
        case 4:
 
                break;
 
        case 4:
-               SHA1Init(&sha_ctx);
+               sha1_init(&sha_ctx);
                /*
                 * TODO: Can this be 0x99? Are all public key packets old
                 * format with 2 bytes of length data?
                 */
                c = 0x99;
                /*
                 * TODO: Can this be 0x99? Are all public key packets old
                 * format with 2 bytes of length data?
                 */
                c = 0x99;
-               SHA1Update(&sha_ctx, &c, sizeof(c));
+               sha1_update(&sha_ctx, sizeof(c), &c);
                c = packet->length >> 8;
                c = packet->length >> 8;
-               SHA1Update(&sha_ctx, &c, sizeof(c));
+               sha1_update(&sha_ctx, sizeof(c), &c);
                c = packet->length & 0xFF;
                c = packet->length & 0xFF;
-               SHA1Update(&sha_ctx, &c, sizeof(c));
-               SHA1Update(&sha_ctx, packet->data,
-                       packet->length);
-               SHA1Final(fingerprint, &sha_ctx);
+               sha1_update(&sha_ctx, sizeof(c), &c);
+               sha1_update(&sha_ctx, packet->length,
+                       packet->data);
                *len = 20;
                *len = 20;
+               sha1_digest(&sha_ctx, *len, fingerprint);
 
                break;
        default:
 
                break;
        default:
-               logthing(LOGTHING_ERROR, "Unknown key type: %d",
-                               packet->data[0]);
+               return ONAK_E_UNKNOWN_VER;
        }
 
        }
 
-       return fingerprint;
+       return ONAK_E_OK;
 }
 
 
 }
 
 
@@ -106,15 +124,15 @@ unsigned char *get_fingerprint(struct openpgp_packet *packet,
  *     get_packetid - Given a PGP packet returns the keyid.
  *     @packet: The packet to calculate the id for.
  */
  *     get_packetid - Given a PGP packet returns the keyid.
  *     @packet: The packet to calculate the id for.
  */
-uint64_t get_packetid(struct openpgp_packet *packet)
+onak_status_t get_packetid(struct openpgp_packet *packet, uint64_t *keyid)
 {
 {
-       uint64_t        keyid = 0;
        int             offset = 0;
        int             i = 0;
        size_t          length = 0;
        unsigned char   buff[20];
 
        int             offset = 0;
        int             i = 0;
        size_t          length = 0;
        unsigned char   buff[20];
 
-       log_assert(packet != NULL);
+       if (packet == NULL)
+               return ONAK_E_INVALID_PARAM;
 
        switch (packet->data[0]) {
        case 2:
 
        switch (packet->data[0]) {
        case 2:
@@ -128,38 +146,34 @@ uint64_t get_packetid(struct openpgp_packet *packet)
                        packet->data[9];
                offset = ((offset + 7) / 8) + 2;
 
                        packet->data[9];
                offset = ((offset + 7) / 8) + 2;
 
-               for (keyid = 0, i = 0; i < 8; i++) {
-                       keyid <<= 8;
-                       keyid += packet->data[offset++];
+               for (*keyid = 0, i = 0; i < 8; i++) {
+                       *keyid <<= 8;
+                       *keyid += packet->data[offset++];
                }
                /*
                }
                /*
-                * Check for an RSA key; if not then log but accept anyway.
+                * Check for an RSA key; if not return an error.
                 * 1 == RSA
                 * 2 == RSA Encrypt-Only
                 * 3 == RSA Sign-Only
                 */
                if (packet->data[7] < 1 || packet->data[7] > 3) {
                 * 1 == RSA
                 * 2 == RSA Encrypt-Only
                 * 3 == RSA Sign-Only
                 */
                if (packet->data[7] < 1 || packet->data[7] > 3) {
-                       logthing(LOGTHING_NOTICE,
-                               "Type 2 or 3 key, but not RSA: %llx (type %d)",
-                               keyid,
-                               packet->data[7]);
+                       return ONAK_E_INVALID_PKT;
                }
                break;
        case 4:
                get_fingerprint(packet, buff, &length);
                
                }
                break;
        case 4:
                get_fingerprint(packet, buff, &length);
                
-               for (keyid = 0, i = 12; i < 20; i++) {
-                       keyid <<= 8;
-                       keyid += buff[i];
+               for (*keyid = 0, i = 12; i < 20; i++) {
+                       *keyid <<= 8;
+                       *keyid += buff[i];
                }
 
                break;
        default:
                }
 
                break;
        default:
-               logthing(LOGTHING_ERROR, "Unknown key type: %d",
-                               packet->data[0]);
+               return ONAK_E_UNKNOWN_VER;
        }
 
        }
 
-       return keyid;
+       return ONAK_E_OK;
 }
 
 static struct openpgp_packet_list *sortpackets(struct openpgp_packet_list
 }
 
 static struct openpgp_packet_list *sortpackets(struct openpgp_packet_list
@@ -183,7 +197,7 @@ static struct openpgp_packet_list *sortpackets(struct openpgp_packet_list
        return sorted;
 }
 
        return sorted;
 }
 
-void get_skshash(struct openpgp_publickey *key, struct skshash *hash)
+onak_status_t get_skshash(struct openpgp_publickey *key, struct skshash *hash)
 {
        struct openpgp_packet_list *packets = NULL, *list_end = NULL;
        struct openpgp_packet_list *curpacket;
 {
        struct openpgp_packet_list *packets = NULL, *list_end = NULL;
        struct openpgp_packet_list *curpacket;
@@ -201,21 +215,23 @@ void get_skshash(struct openpgp_publickey *key, struct skshash *hash)
        key->next = next;
        packets = sortpackets(packets);
 
        key->next = next;
        packets = sortpackets(packets);
 
-       md5_init_ctx(&md5_context);
+       md5_init(&md5_context);
 
        for (curpacket = packets; curpacket != NULL;
                        curpacket = curpacket->next) {
                tmp = htonl(curpacket->packet->tag);
 
        for (curpacket = packets; curpacket != NULL;
                        curpacket = curpacket->next) {
                tmp = htonl(curpacket->packet->tag);
-               md5_process_bytes(&tmp, sizeof(tmp), &md5_context);
+               md5_update(&md5_context, sizeof(tmp), (void *) &tmp);
                tmp = htonl(curpacket->packet->length);
                tmp = htonl(curpacket->packet->length);
-               md5_process_bytes(&tmp, sizeof(tmp), &md5_context);
-               md5_process_bytes(curpacket->packet->data,
+               md5_update(&md5_context, sizeof(tmp), (void *) &tmp);
+               md5_update(&md5_context,
                                curpacket->packet->length,
                                curpacket->packet->length,
-                               &md5_context);
+                               curpacket->packet->data);
        }
 
        }
 
-       md5_finish_ctx(&md5_context, &hash->hash);
+       md5_digest(&md5_context, 16, (uint8_t *) &hash->hash);
        free_packet_list(packets);
        free_packet_list(packets);
+
+       return ONAK_E_OK;
 }
 
 uint8_t hexdigit(char c)
 }
 
 uint8_t hexdigit(char c)