All changes affect only SCTP-AUTH:
* Remove non working code related to SHA224. * Remove support for non-standardised HMAC-IDs using SHA384 and SHA512. * Prefer SHA256 over SHA1. * Minor cleanup. MFC after: 2 weeks
This commit is contained in:
Michael Tuexen
parent
081f835212
commit
e6b2b4b65b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=255160
@ -703,15 +703,7 @@ sctp_auth_add_hmacid(sctp_hmaclist_t * list, uint16_t hmac_id)
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return (-1);
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}
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if ((hmac_id != SCTP_AUTH_HMAC_ID_SHA1) &&
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#ifdef HAVE_SHA224
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(hmac_id != SCTP_AUTH_HMAC_ID_SHA224) &&
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#endif
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#ifdef HAVE_SHA2
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(hmac_id != SCTP_AUTH_HMAC_ID_SHA256) &&
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(hmac_id != SCTP_AUTH_HMAC_ID_SHA384) &&
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(hmac_id != SCTP_AUTH_HMAC_ID_SHA512) &&
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#endif
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1) {
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(hmac_id != SCTP_AUTH_HMAC_ID_SHA256)) {
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return (-1);
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}
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/* Now is it already in the list */
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@ -754,8 +746,9 @@ sctp_default_supported_hmaclist(void)
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new_list = sctp_alloc_hmaclist(2);
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if (new_list == NULL)
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return (NULL);
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(void)sctp_auth_add_hmacid(new_list, SCTP_AUTH_HMAC_ID_SHA1);
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/* We prefer SHA256, so list it first */
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(void)sctp_auth_add_hmacid(new_list, SCTP_AUTH_HMAC_ID_SHA256);
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(void)sctp_auth_add_hmacid(new_list, SCTP_AUTH_HMAC_ID_SHA1);
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return (new_list);
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}
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@ -811,19 +804,13 @@ int
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sctp_verify_hmac_param(struct sctp_auth_hmac_algo *hmacs, uint32_t num_hmacs)
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{
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uint32_t i;
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uint16_t hmac_id;
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uint32_t sha1_supported = 0;
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for (i = 0; i < num_hmacs; i++) {
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hmac_id = ntohs(hmacs->hmac_ids[i]);
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if (hmac_id == SCTP_AUTH_HMAC_ID_SHA1)
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sha1_supported = 1;
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if (ntohs(hmacs->hmac_ids[i]) == SCTP_AUTH_HMAC_ID_SHA1) {
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return (0);
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}
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}
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/* all HMAC id's are supported */
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if (sha1_supported == 0)
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return (-1);
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else
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return (0);
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return (-1);
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}
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sctp_authinfo_t *
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@ -877,18 +864,8 @@ sctp_get_hmac_digest_len(uint16_t hmac_algo)
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switch (hmac_algo) {
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case SCTP_AUTH_HMAC_ID_SHA1:
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return (SCTP_AUTH_DIGEST_LEN_SHA1);
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#ifdef HAVE_SHA224
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case SCTP_AUTH_HMAC_ID_SHA224:
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return (SCTP_AUTH_DIGEST_LEN_SHA224);
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#endif
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#ifdef HAVE_SHA2
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case SCTP_AUTH_HMAC_ID_SHA256:
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return (SCTP_AUTH_DIGEST_LEN_SHA256);
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case SCTP_AUTH_HMAC_ID_SHA384:
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return (SCTP_AUTH_DIGEST_LEN_SHA384);
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case SCTP_AUTH_HMAC_ID_SHA512:
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return (SCTP_AUTH_DIGEST_LEN_SHA512);
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#endif
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default:
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/* unknown HMAC algorithm: can't do anything */
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return (0);
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@ -900,17 +877,9 @@ sctp_get_hmac_block_len(uint16_t hmac_algo)
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{
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switch (hmac_algo) {
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case SCTP_AUTH_HMAC_ID_SHA1:
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#ifdef HAVE_SHA224
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case SCTP_AUTH_HMAC_ID_SHA224:
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#endif
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return (64);
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#ifdef HAVE_SHA2
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case SCTP_AUTH_HMAC_ID_SHA256:
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return (64);
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case SCTP_AUTH_HMAC_ID_SHA384:
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case SCTP_AUTH_HMAC_ID_SHA512:
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return (128);
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#endif
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case SCTP_AUTH_HMAC_ID_RSVD:
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default:
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/* unknown HMAC algorithm: can't do anything */
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@ -923,23 +892,11 @@ sctp_hmac_init(uint16_t hmac_algo, sctp_hash_context_t * ctx)
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{
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switch (hmac_algo) {
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case SCTP_AUTH_HMAC_ID_SHA1:
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SHA1_Init(&ctx->sha1);
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SCTP_SHA1_INIT(&ctx->sha1);
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break;
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#ifdef HAVE_SHA224
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case SCTP_AUTH_HMAC_ID_SHA224:
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break;
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#endif
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#ifdef HAVE_SHA2
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case SCTP_AUTH_HMAC_ID_SHA256:
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SHA256_Init(&ctx->sha256);
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SCTP_SHA256_INIT(&ctx->sha256);
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break;
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case SCTP_AUTH_HMAC_ID_SHA384:
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SHA384_Init(&ctx->sha384);
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break;
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case SCTP_AUTH_HMAC_ID_SHA512:
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SHA512_Init(&ctx->sha512);
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break;
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#endif
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case SCTP_AUTH_HMAC_ID_RSVD:
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default:
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/* unknown HMAC algorithm: can't do anything */
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@ -953,23 +910,11 @@ sctp_hmac_update(uint16_t hmac_algo, sctp_hash_context_t * ctx,
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{
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switch (hmac_algo) {
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case SCTP_AUTH_HMAC_ID_SHA1:
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SHA1_Update(&ctx->sha1, text, textlen);
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SCTP_SHA1_UPDATE(&ctx->sha1, text, textlen);
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break;
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#ifdef HAVE_SHA224
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case SCTP_AUTH_HMAC_ID_SHA224:
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break;
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#endif
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#ifdef HAVE_SHA2
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case SCTP_AUTH_HMAC_ID_SHA256:
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SHA256_Update(&ctx->sha256, text, textlen);
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SCTP_SHA256_UPDATE(&ctx->sha256, text, textlen);
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break;
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case SCTP_AUTH_HMAC_ID_SHA384:
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SHA384_Update(&ctx->sha384, text, textlen);
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break;
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case SCTP_AUTH_HMAC_ID_SHA512:
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SHA512_Update(&ctx->sha512, text, textlen);
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break;
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#endif
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case SCTP_AUTH_HMAC_ID_RSVD:
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default:
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/* unknown HMAC algorithm: can't do anything */
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@ -983,24 +928,11 @@ sctp_hmac_final(uint16_t hmac_algo, sctp_hash_context_t * ctx,
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{
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switch (hmac_algo) {
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case SCTP_AUTH_HMAC_ID_SHA1:
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SHA1_Final(digest, &ctx->sha1);
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SCTP_SHA1_FINAL(digest, &ctx->sha1);
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break;
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#ifdef HAVE_SHA224
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case SCTP_AUTH_HMAC_ID_SHA224:
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break;
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#endif
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#ifdef HAVE_SHA2
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case SCTP_AUTH_HMAC_ID_SHA256:
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SHA256_Final(digest, &ctx->sha256);
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SCTP_SHA256_FINAL(digest, &ctx->sha256);
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break;
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case SCTP_AUTH_HMAC_ID_SHA384:
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/* SHA384 is truncated SHA512 */
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SHA384_Final(digest, &ctx->sha384);
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break;
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case SCTP_AUTH_HMAC_ID_SHA512:
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SHA512_Final(digest, &ctx->sha512);
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break;
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#endif
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case SCTP_AUTH_HMAC_ID_RSVD:
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default:
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/* unknown HMAC algorithm: can't do anything */
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@ -36,14 +36,12 @@ __FBSDID("$FreeBSD$");
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#ifndef _NETINET_SCTP_AUTH_H_
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#define _NETINET_SCTP_AUTH_H_
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#include <netinet/sctp_os.h>
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/* digest lengths */
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#define SCTP_AUTH_DIGEST_LEN_SHA1 20
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#define SCTP_AUTH_DIGEST_LEN_SHA224 28
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#define SCTP_AUTH_DIGEST_LEN_SHA256 32
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#define SCTP_AUTH_DIGEST_LEN_SHA384 48
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#define SCTP_AUTH_DIGEST_LEN_SHA512 64
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#define SCTP_AUTH_DIGEST_LEN_MAX 64
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#define SCTP_AUTH_DIGEST_LEN_MAX SCTP_AUTH_DIGEST_LEN_SHA256
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/* random sizes */
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#define SCTP_AUTH_RANDOM_SIZE_DEFAULT 32
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@ -52,12 +50,8 @@ __FBSDID("$FreeBSD$");
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/* union of all supported HMAC algorithm contexts */
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typedef union sctp_hash_context {
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SHA1_CTX sha1;
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#ifdef HAVE_SHA2
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SHA256_CTX sha256;
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SHA384_CTX sha384;
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SHA512_CTX sha512;
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#endif
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SCTP_SHA1_CTX sha1;
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SCTP_SHA256_CTX sha256;
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} sctp_hash_context_t;
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typedef struct sctp_key {
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@ -104,6 +104,9 @@ __FBSDID("$FreeBSD$");
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#include <netinet/ip_options.h>
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#include <crypto/sha1.h>
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#include <crypto/sha2/sha2.h>
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#ifndef in6pcb
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#define in6pcb inpcb
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#endif
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@ -468,23 +471,18 @@ sctp_get_mbuf_for_msg(unsigned int space_needed,
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/*
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* SCTP AUTH
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*/
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#define HAVE_SHA2
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#define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
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#ifdef USE_SCTP_SHA1
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#include <netinet/sctp_sha1.h>
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#else
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#include <crypto/sha1.h>
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/* map standard crypto API names */
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#define SHA1_Init SHA1Init
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#define SHA1_Update SHA1Update
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#define SHA1_Final(x,y) SHA1Final((caddr_t)x, y)
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#endif
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#define SCTP_SHA1_CTX SHA1_CTX
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#define SCTP_SHA1_INIT SHA1Init
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#define SCTP_SHA1_UPDATE SHA1Update
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#define SCTP_SHA1_FINAL(x,y) SHA1Final((caddr_t)x, y)
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#if defined(HAVE_SHA2)
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#include <crypto/sha2/sha2.h>
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#endif
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#define SCTP_SHA256_CTX SHA256_CTX
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#define SCTP_SHA256_INIT SHA256_Init
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#define SCTP_SHA256_UPDATE SHA256_Update
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#define SCTP_SHA256_FINAL(x,y) SHA256_Final((caddr_t)x, y)
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#endif
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@ -662,10 +662,6 @@ struct sctp_hmacalgo {
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#define SCTP_AUTH_HMAC_ID_RSVD 0x0000
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#define SCTP_AUTH_HMAC_ID_SHA1 0x0001 /* default, mandatory */
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#define SCTP_AUTH_HMAC_ID_SHA256 0x0003
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#define SCTP_AUTH_HMAC_ID_SHA224 0x0004
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#define SCTP_AUTH_HMAC_ID_SHA384 0x0005
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#define SCTP_AUTH_HMAC_ID_SHA512 0x0006
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/* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
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struct sctp_authkeyid {
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