Make keyd background itself by default

[onak.git] / decodekey.c

diff --git a/decodekey.c b/decodekey.c
index 9ae614d0cfe6e1701fbf1dd47ea4273c6883c82d..606b091f941237ec173cedf64b10b0c6aa1eb29f 100644 (file)
--- a/decodekey.c
+++ b/decodekey.c
@@ -1,14 +1,9 @@
 /*
  * decodekey.c - Routines to further decode an OpenPGP key.
  *
 /*
  * decodekey.c - Routines to further decode an OpenPGP key.
  *

- * Jonathan McDowell <noodles@earth.li>
- *
- * Copyright 2002 Project Purple
- *
- * $Id: decodekey.c,v 1.2 2003/06/04 20:57:07 noodles Exp $
+ * Copyright 2002-2008 Jonathan McDowell <noodles@earth.li>

  */
 
  */
 

-#include <assert.h>

 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>


@@ -20,23 +15,26 @@
 #include "keyid.h"
 #include "keystructs.h"
 #include "ll.h"
 #include "keyid.h"
 #include "keystructs.h"
 #include "ll.h"

+#include "log.h"

 
 /*
  *     parse_subpackets - Parse the subpackets of a Type 4 signature.
  *     @data: The subpacket data.
 
 /*
  *     parse_subpackets - Parse the subpackets of a Type 4 signature.
  *     @data: The subpacket data.

- *      @keyid: A pointer to where we should return the keyid.
+ *     @keyid: A pointer to where we should return the keyid.
+ *     @creationtime: A pointer to where we should return the creation time.

  *
  *     This function parses the subkey data of a Type 4 signature and fills
  *     in the supplied variables. It also returns the length of the data
  *
  *     This function parses the subkey data of a Type 4 signature and fills
  *     in the supplied variables. It also returns the length of the data

- *     processed.
+ *     processed. If the value of any piece of data is not desired a NULL
+ *     can be passed instead of a pointer to a storage area for that value.

  */
  */

-int parse_subpackets(unsigned char *data, uint64_t *keyid)
+int parse_subpackets(unsigned char *data, uint64_t *keyid, time_t *creation)

 {
        int offset = 0;
        int length = 0;
        int packetlen = 0;
 
 {
        int offset = 0;
        int length = 0;
        int packetlen = 0;
 

-       assert(data != NULL);
+       log_assert(data != NULL);

 
        length = (data[0] << 8) + data[1] + 2;
 
 
        length = (data[0] << 8) + data[1] + 2;
 


@@ -55,34 +53,56 @@ int parse_subpackets(unsigned char *data, uint64_t *keyid)
                        packetlen <<= 8;
                        packetlen = data[offset++];
                }
                        packetlen <<= 8;
                        packetlen = data[offset++];
                }

-               switch (data[offset]) {
+               switch (data[offset] & 0x7F) {

                case 2:
                        /*
                case 2:
                        /*

-                        * Signature creation time. Might want to output this?
+                        * Signature creation time.

                         */
                         */

+                       if (creation != NULL) {
+                               *creation = data[offset + packetlen - 4];
+                               *creation <<= 8;
+                               *creation = data[offset + packetlen - 3];
+                               *creation <<= 8;
+                               *creation = data[offset + packetlen - 2];
+                               *creation <<= 8;
+                               *creation = data[offset + packetlen - 1];
+                       }

                        break;
                        break;

-               case 0x83:
+               case 3:

                        /*
                         * Signature expiration time. Might want to output this?
                         */
                        break;
                        /*
                         * Signature expiration time. Might want to output this?
                         */
                        break;

+               case 6:
+                       /*
+                        * Regular expression for UIDs this sig is over.
+                        */
+                       break;

                case 16:
                case 16:

-                       *keyid = data[offset+packetlen - 8];
-                       *keyid <<= 8;
-                       *keyid += data[offset+packetlen - 7];
-                       *keyid <<= 8;
-                       *keyid += data[offset+packetlen - 6];
-                       *keyid <<= 8;
-                       *keyid += data[offset+packetlen - 5];
-                       *keyid <<= 8;
-                       *keyid += data[offset+packetlen - 4];
-                       *keyid <<= 8;
-                       *keyid += data[offset+packetlen - 3];
-                       *keyid <<= 8;
-                       *keyid += data[offset+packetlen - 2];
-                       *keyid <<= 8;
-                       *keyid += data[offset+packetlen - 1];
+                       if (keyid != NULL) {
+                               *keyid = data[offset+packetlen - 8];
+                               *keyid <<= 8;
+                               *keyid += data[offset+packetlen - 7];
+                               *keyid <<= 8;
+                               *keyid += data[offset+packetlen - 6];
+                               *keyid <<= 8;
+                               *keyid += data[offset+packetlen - 5];
+                               *keyid <<= 8;
+                               *keyid += data[offset+packetlen - 4];
+                               *keyid <<= 8;
+                               *keyid += data[offset+packetlen - 3];
+                               *keyid <<= 8;
+                               *keyid += data[offset+packetlen - 2];
+                               *keyid <<= 8;
+                               *keyid += data[offset+packetlen - 1];
+                       }
+                       break;
+               case 20:
+                       /*
+                        * Annotation data.
+                        */

                        break;
                        break;

+

                case 23:
                        /*
                         * Key server preferences. Including no-modify.
                case 23:
                        /*
                         * Key server preferences. Including no-modify.


@@ -93,13 +113,22 @@ int parse_subpackets(unsigned char *data, uint64_t *keyid)
                         * Primary UID.
                         */
                        break;
                         * Primary UID.
                         */
                        break;

+               case 26:
+                       /*
+                        * Policy URI.
+                        */
+                       break;

                default:
                        /*
                         * We don't care about unrecognized packets unless bit
                default:
                        /*
                         * We don't care about unrecognized packets unless bit

-                        * 7 is set in which case we prefer an error than
-                        * ignoring it.
+                        * 7 is set in which case we log a major error.

                         */
                         */

-                       assert(!(data[offset] & 0x80));
+                       if (data[offset] & 0x80) {
+                               logthing(LOGTHING_CRITICAL,
+                               "Critical subpacket type not parsed: 0x%X",
+                                       data[offset]);
+                       }
+                               

                }
                offset += packetlen;
        }
                }
                offset += packetlen;
        }


@@ -130,42 +159,55 @@ struct ll *keysigs(struct ll *curll,
 }
 
 /**
 }
 
 /**

- *     sig_keyid - Return the keyid for a given OpenPGP signature packet.
- *     @packet: The signature packet.
+ *     sig_info - Get info on a given OpenPGP signature packet
+ *     @packet: The signature packet
+ *     @keyid: A pointer for where to return the signature keyid
+ *     @creation: A pointer for where to return the signature creation time

  *
  *

- *     Returns the keyid for the supplied signature packet.
+ *     Gets any info about a signature packet; parses the subpackets for a v4
+ *     key or pulls the data directly from v2/3. NULL can be passed for any
+ *     values which aren't cared about.

  */
  */

-uint64_t sig_keyid(struct openpgp_packet *packet)
+void sig_info(struct openpgp_packet *packet, uint64_t *keyid, time_t *creation)

 {
        int length = 0;
 {
        int length = 0;

-       uint64_t keyid = 0;

        
        if (packet != NULL) {
        
        if (packet != NULL) {

-               keyid = 0;

                switch (packet->data[0]) {
                case 2:
                case 3:
                switch (packet->data[0]) {
                case 2:
                case 3:

-                       keyid = packet->data[7];
-                       keyid <<= 8;
-                       keyid += packet->data[8];
-                       keyid <<= 8;
-                       keyid += packet->data[9];
-                       keyid <<= 8;
-                       keyid += packet->data[10];
-                       keyid <<= 8;
-                       keyid += packet->data[11];
-                       keyid <<= 8;
-                       keyid += packet->data[12];
-                       keyid <<= 8;
-                       keyid += packet->data[13];
-                       keyid <<= 8;
-                       keyid += packet->data[14];
+                       if (keyid != NULL) {
+                               *keyid = packet->data[7];
+                               *keyid <<= 8;
+                               *keyid += packet->data[8];
+                               *keyid <<= 8;
+                               *keyid += packet->data[9];
+                               *keyid <<= 8;
+                               *keyid += packet->data[10];
+                               *keyid <<= 8;
+                               *keyid += packet->data[11];
+                               *keyid <<= 8;
+                               *keyid += packet->data[12];
+                               *keyid <<= 8;
+                               *keyid += packet->data[13];
+                               *keyid <<= 8;
+                               *keyid += packet->data[14];
+                       }
+                       if (creation != NULL) {
+                               *creation = packet->data[3];
+                               *creation <<= 8;
+                               *creation = packet->data[4];
+                               *creation <<= 8;
+                               *creation = packet->data[5];
+                               *creation <<= 8;
+                               *creation = packet->data[6];
+                       }

                        break;
                case 4:
                        length = parse_subpackets(&packet->data[4],
                        break;
                case 4:
                        length = parse_subpackets(&packet->data[4],

-                                       &keyid);
+                                       keyid, creation);

                        parse_subpackets(&packet->data[length + 4],
                        parse_subpackets(&packet->data[length + 4],

-                                       &keyid);
+                                       keyid, creation);

                        /*
                         * Don't bother to look at the unsigned packets.
                         */
                        /*
                         * Don't bother to look at the unsigned packets.
                         */


@@ -175,9 +217,25 @@ uint64_t sig_keyid(struct openpgp_packet *packet)
                }
        }
 
                }
        }
 

+       return;
+}
+
+/**
+ *     sig_keyid - Return the keyid for a given OpenPGP signature packet.
+ *     @packet: The signature packet.
+ *
+ *     Returns the keyid for the supplied signature packet.
+ */
+uint64_t sig_keyid(struct openpgp_packet *packet)
+{
+       uint64_t keyid = 0;
+
+       sig_info(packet, &keyid, NULL);
+

        return keyid;
 }
 
        return keyid;
 }
 

+

 /*
  * TODO: Abstract out; all our linked lists should be generic and then we can
  * llsize them.
 /*
  * TODO: Abstract out; all our linked lists should be generic and then we can
  * llsize them.


@@ -207,6 +265,10 @@ char **keyuids(struct openpgp_publickey *key, char **primary)
        char buf[1024];
        char **uids = NULL;
        int count = 0;
        char buf[1024];
        char **uids = NULL;
        int count = 0;

+        
+        if (primary != NULL) {
+               *primary = NULL;
+       }

 
        if (key != NULL && key->uids != NULL) {
                uids = malloc((spsize(key->uids) + 1) * sizeof (char *));
 
        if (key != NULL && key->uids != NULL) {
                uids = malloc((spsize(key->uids) + 1) * sizeof (char *));


@@ -223,13 +285,41 @@ char **keyuids(struct openpgp_publickey *key, char **primary)
                        curuid = curuid -> next;
                }
                uids[count] = NULL;
                        curuid = curuid -> next;
                }
                uids[count] = NULL;

-       }
-       /*
-        * TODO: Parse subpackets for real primary ID (v4 keys)
-        */
-       if (primary != NULL) {
-               *primary = uids[0];
+
+               /*
+                * TODO: Parse subpackets for real primary ID (v4 keys)
+                */
+               if (primary != NULL) {
+                       *primary = uids[0];
+               }

        }
 
        return uids;
 }
        }
 
        return uids;
 }

+
+/**
+ *     keysubkeys - Takes a key and returns an array of its subkey keyids.
+ *     @key: The key to get the subkeys of.
+ *
+ *     keysubkeys takes a public key structure and returns an array of the
+ *     subkey keyids for that key.
+ */
+uint64_t *keysubkeys(struct openpgp_publickey *key)
+{
+       struct openpgp_signedpacket_list *cursubkey = NULL;
+       uint64_t                         *subkeys = NULL;
+       int                               count = 0;
+        
+       if (key != NULL && key->subkeys != NULL) {
+               subkeys = malloc((spsize(key->subkeys) + 1) *
+                               sizeof (uint64_t));
+               cursubkey = key->subkeys;
+               while (cursubkey != NULL) {
+                       subkeys[count++] = get_packetid(cursubkey->packet);
+                       cursubkey = cursubkey -> next;
+               }
+               subkeys[count] = 0;
+       }
+
+       return subkeys;
+}