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moved PGP code to pluto and gpg plugin

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This commit is contained in:
Martin Willi
2009-08-26 11:23:51 +02:00
parent 7033a70fd0
commit b457e08fca
7 changed files with 110 additions and 315 deletions
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src/pluto/pgpcert.c
+74 -1
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@@ -21,7 +21,7 @@
#include <freeswan.h>
#include <library.h>
#include <pgp/pgp.h>
#include <enum.h>
#include <crypto/hashers/hasher.h>
#include "constants.h"
@@ -33,6 +33,57 @@
#include "whack.h"
#include "keys.h"
typedef enum pgp_packet_tag_t pgp_packet_tag_t;
/**
* OpenPGP packet tags as defined in section 4.3 of RFC 4880
*/
enum pgp_packet_tag_t {
PGP_PKT_RESERVED = 0,
PGP_PKT_PUBKEY_ENC_SESSION_KEY = 1,
PGP_PKT_SIGNATURE = 2,
PGP_PKT_SYMKEY_ENC_SESSION_KEY = 3,
PGP_PKT_ONE_PASS_SIGNATURE_PKT = 4,
PGP_PKT_SECRET_KEY = 5,
PGP_PKT_PUBLIC_KEY = 6,
PGP_PKT_SECRET_SUBKEY = 7,
PGP_PKT_COMPRESSED_DATA = 8,
PGP_PKT_SYMKEY_ENC_DATA = 9,
PGP_PKT_MARKER = 10,
PGP_PKT_LITERAL_DATA = 11,
PGP_PKT_TRUST = 12,
PGP_PKT_USER_ID = 13,
PGP_PKT_PUBLIC_SUBKEY = 14,
PGP_PKT_USER_ATTRIBUTE = 17,
PGP_PKT_SYM_ENC_INT_PROT_DATA = 18,
PGP_PKT_MOD_DETECT_CODE = 19
};
ENUM_BEGIN(pgp_packet_tag_names, PGP_PKT_RESERVED, PGP_PKT_PUBLIC_SUBKEY,
"Reserved",
"Public-Key Encrypted Session Key Packet",
"Signature Packet",
"Symmetric-Key Encrypted Session Key Packet",
"One-Pass Signature Packet",
"Secret Key Packet",
"Public Key Packet",
"Secret Subkey Packet",
"Compressed Data Packet",
"Symmetrically Encrypted Data Packet",
"Marker Packet",
"Literal Data Packet",
"Trust Packet",
"User ID Packet",
"Public Subkey Packet"
);
ENUM_NEXT(pgp_packet_tag_names, PGP_PKT_USER_ATTRIBUTE, PGP_PKT_MOD_DETECT_CODE, PGP_PKT_PUBLIC_SUBKEY,
"User Attribute Packet",
"Sym. Encrypted and Integrity Protected Data Packet",
"Modification Detection Code Packet"
);
ENUM_END(pgp_packet_tag_names, PGP_PKT_MOD_DETECT_CODE);
/**
* Chained list of OpenPGP end certificates
*/
@@ -55,6 +106,28 @@ const pgpcert_t pgpcert_empty = {
NULL /* fingerprint */
};
#define PGP_INVALID_LENGTH 0xffffffff
/**
* Returns the length of an OpenPGP (RFC 4880) packet
* The blob pointer is advanced past the length field.
*/
static size_t pgp_length(chunk_t *blob, size_t len)
{
size_t size = 0;
if (len > blob->len)
{
return PGP_INVALID_LENGTH;
}
blob->len -= len;
while (len-- > 0)
{
size = 256*size + *blob->ptr++;
}
return size;
}
/**
* Extracts the length of a PGP packet