From fa2c30bab91ed66c52bc4c2fdd025602f3737d42 Mon Sep 17 00:00:00 2001 From: Jonathan McDowell Date: Mon, 31 May 2004 23:46:59 +0000 Subject: [PATCH] cscvs to tla changeset 12 Author: noodles Date: 2002/09/08 10:37:27 Addition of sig2keyid function. --- keyindex.c | 254 +++++++++++++++++------------------------------------ keyindex.h | 8 ++ 2 files changed, 88 insertions(+), 174 deletions(-) diff --git a/keyindex.c b/keyindex.c index a1bbe2e..a7218b2 100644 --- a/keyindex.c +++ b/keyindex.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -22,167 +23,38 @@ #include "ll.h" #include "stats.h" -int parse_subpackets(unsigned char *data, bool html) -{ - int offset = 0; - int length = 0; - int packetlen = 0; - char *uid; - - assert(data != NULL); - - length = (data[0] << 8) + data[1] + 2; - - offset = 2; - while (offset < length) { - packetlen = data[offset++]; - if (packetlen > 191 && packetlen < 255) { - packetlen = ((packetlen - 192) << 8) + - data[offset++] + 192; - } else if (packetlen == 255) { - packetlen = data[offset++]; - packetlen <<= 8; - packetlen = data[offset++]; - packetlen <<= 8; - packetlen = data[offset++]; - packetlen <<= 8; - packetlen = data[offset++]; - } - switch (data[offset]) { - case 2: - /* - * Signature creation time. Might want to output this? - */ - break; - case 16: - uid = keyid2uid( - ((uint64_t) data[offset+packetlen - 8] << 56) + - ((uint64_t) data[offset+packetlen - 7] << 48) + - ((uint64_t) data[offset+packetlen - 6] << 40) + - ((uint64_t) data[offset+packetlen - 5] << 32) + - ((uint64_t) data[offset+packetlen - 4] << 24) + - ((uint64_t) data[offset+packetlen - 3] << 16) + - ((uint64_t) data[offset+packetlen - 2] << 8) + - data[offset+packetlen - 1]); - if (html && uid != NULL) { - printf("sig " - "%02X%02X%02X%02X " - "" - "%s\n", - data[offset+packetlen - 4], - data[offset+packetlen - 3], - data[offset+packetlen - 2], - data[offset+packetlen - 1], - data[offset+packetlen - 4], - data[offset+packetlen - 3], - data[offset+packetlen - 2], - data[offset+packetlen - 1], - - data[offset+packetlen - 4], - data[offset+packetlen - 3], - data[offset+packetlen - 2], - data[offset+packetlen - 1], - txt2html(uid)); - } else if (html && uid == NULL) { - printf("sig " - "%02X%02X%02X%02X " - "[User id not found]\n", - data[offset+packetlen - 4], - data[offset+packetlen - 3], - data[offset+packetlen - 2], - data[offset+packetlen - 1]); - } else { - printf("sig %02X%02X%02X%02X" - " %s\n", - data[offset+packetlen - 4], - data[offset+packetlen - 3], - data[offset+packetlen - 2], - data[offset+packetlen - 1], - (uid != NULL) ? uid : - "[User id not found]"); - } - break; - default: - /* - * We don't care about unrecognized packets unless bit - * 7 is set in which case we prefer an error than - * ignoring it. - */ - assert(!(data[offset] & 0x80)); - } - offset += packetlen; - } - - return length; -} - int list_sigs(struct openpgp_packet_list *sigs, bool html) { int length = 0; - char *uid; + char *uid = NULL; + uint64_t sigid = 0; while (sigs != NULL) { - switch (sigs->packet->data[0]) { - case 2: - case 3: - uid = keyid2uid( - ((uint64_t) sigs->packet->data[7] << 56) + - ((uint64_t) sigs->packet->data[8] << 48) + - ((uint64_t) sigs->packet->data[9] << 40) + - ((uint64_t) sigs->packet->data[10] << 32) + - ((uint64_t) sigs->packet->data[11] << 24) + - ((uint64_t) sigs->packet->data[12] << 16) + - ((uint64_t) sigs->packet->data[13] << 8) + - sigs->packet->data[14]); - if (html && uid != NULL) { - printf("sig " - "%02X%02X%02X%02X " - "" - "%s\n", - sigs->packet->data[11], - sigs->packet->data[12], - sigs->packet->data[13], - sigs->packet->data[14], - sigs->packet->data[11], - sigs->packet->data[12], - sigs->packet->data[13], - sigs->packet->data[14], - - sigs->packet->data[11], - sigs->packet->data[12], - sigs->packet->data[13], - sigs->packet->data[14], - txt2html(uid)); - } else if (html && uid == NULL) { - printf("sig %02X%02X%02X%02X" - " " - "[User id not found]\n", - sigs->packet->data[11], - sigs->packet->data[12], - sigs->packet->data[13], - sigs->packet->data[14]); - } else { - printf("sig %02X%02X%02X%02X" - " %s\n", - sigs->packet->data[11], - sigs->packet->data[12], - sigs->packet->data[13], - sigs->packet->data[14], - (uid != NULL) ? uid : - "[User id not found]"); - } - break; - case 4: - length = parse_subpackets(&sigs->packet->data[4], html); - parse_subpackets(&sigs->packet->data[length + 4], html); - break; - default: - printf("sig [Unknown packet version %d]", - sigs->packet->data[0]); + sigid = sig_keyid(sigs->packet); + uid = keyid2uid(sigid); + if (html && uid != NULL) { + printf("sig %08llX " + "" + "%s\n", + sigid & 0xFFFFFFFF, + sigid & 0xFFFFFFFF, + sigid & 0xFFFFFFFF, + txt2html(uid)); + } else if (html && uid == NULL) { + printf("sig %08llX " + "[User id not found]\n", + sigid & 0xFFFFFFFF); + } else { + printf("sig %08llX" + " %s\n", + sigid & 0xFFFFFFFF, + (uid != NULL) ? uid : + "[User id not found]"); + } + if (uid != NULL) { + free(uid); + uid = NULL; } sigs = sigs->next; } @@ -298,8 +170,16 @@ int key_index(struct openpgp_publickey *keys, bool verbose, bool fingerprint, return 0; } - -int get_subpackets_keyid(unsigned char *data, uint64_t *keyid) +/* + * parse_subpackets - Parse the subpackets of a Type 4 signature. + * @data: The subpacket data. + * @keyid: A pointer to where we should return the keyid. + * + * 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. + */ +int parse_subpackets(unsigned char *data, uint64_t *keyid) { int offset = 0; int length = 0; @@ -352,6 +232,16 @@ int get_subpackets_keyid(unsigned char *data, uint64_t *keyid) *keyid <<= 8; *keyid += data[offset+packetlen - 1]; break; + case 23: + /* + * Key server preferences. Including no-modify. + */ + break; + case 25: + /* + * Primary UID. + */ + break; default: /* * We don't care about unrecognized packets unless bit @@ -366,7 +256,6 @@ int get_subpackets_keyid(unsigned char *data, uint64_t *keyid) return length; } - /** * keysigs - Return the sigs on a given OpenPGP signature list. * @curll: The current linked list. Can be NULL to create a new list. @@ -378,34 +267,53 @@ int get_subpackets_keyid(unsigned char *data, uint64_t *keyid) struct ll *keysigs(struct ll *curll, struct openpgp_packet_list *sigs) { - int length = 0; uint64_t keyid = 0; while (sigs != NULL) { + keyid = sig_keyid(sigs->packet); + sigs = sigs->next; + curll = lladd(curll, createandaddtohash(keyid)); + } + + return curll; +} + +/** + * 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) +{ + int length = 0; + uint64_t keyid = 0; + + if (packet != NULL) { keyid = 0; - switch (sigs->packet->data[0]) { + switch (packet->data[0]) { case 2: case 3: - keyid = sigs->packet->data[7]; + keyid = packet->data[7]; keyid <<= 8; - keyid += sigs->packet->data[8]; + keyid += packet->data[8]; keyid <<= 8; - keyid += sigs->packet->data[9]; + keyid += packet->data[9]; keyid <<= 8; - keyid += sigs->packet->data[10]; + keyid += packet->data[10]; keyid <<= 8; - keyid += sigs->packet->data[11]; + keyid += packet->data[11]; keyid <<= 8; - keyid += sigs->packet->data[12]; + keyid += packet->data[12]; keyid <<= 8; - keyid += sigs->packet->data[13]; + keyid += packet->data[13]; keyid <<= 8; - keyid += sigs->packet->data[14]; + keyid += packet->data[14]; break; case 4: - length = get_subpackets_keyid(&sigs->packet->data[4], + length = parse_subpackets(&packet->data[4], &keyid); - get_subpackets_keyid(&sigs->packet->data[length + 4], + parse_subpackets(&packet->data[length + 4], &keyid); /* * Don't bother to look at the unsigned packets. @@ -414,11 +322,9 @@ struct ll *keysigs(struct ll *curll, default: break; } - sigs = sigs->next; - curll = lladd(curll, createandaddtohash(keyid)); } - return curll; + return keyid; } /* diff --git a/keyindex.h b/keyindex.h index 5b567bc..c0b29ed 100644 --- a/keyindex.h +++ b/keyindex.h @@ -37,6 +37,14 @@ int key_index(struct openpgp_publickey *keys, bool verbose, struct ll *keysigs(struct ll *curll, struct openpgp_packet_list *sigs); +/** + * 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); + /** * keyuids - Takes a key and returns an array of its UIDs * @key: The key to get the uids of. -- 2.39.5