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author | Kevin Coffman <kwc@citi.umich.edu> | 2010-03-17 17:03:02 (GMT) |
---|---|---|
committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-05-14 19:09:19 (GMT) |
commit | 8b23707612cffdba694dcd18aa8a018918aa86dc (patch) | |
tree | 3dd484658768c0a710b252a674c697124380b223 /net/sunrpc | |
parent | bf6d359c508cf83401c942262a9749752598394d (diff) | |
download | linux-fsl-qoriq-8b23707612cffdba694dcd18aa8a018918aa86dc.tar.xz |
gssd_krb5: arcfour-hmac support
For arcfour-hmac support, the make_checksum function needs a usage
field to correctly calculate the checksum differently for MIC and
WRAP tokens.
Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_crypto.c | 15 | ||||
-rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_seal.c | 13 | ||||
-rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_unseal.c | 12 | ||||
-rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_wrap.c | 4 |
4 files changed, 30 insertions, 14 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c index 967484a..33ae702 100644 --- a/net/sunrpc/auth_gss/gss_krb5_crypto.c +++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c @@ -132,7 +132,7 @@ checksummer(struct scatterlist *sg, void *data) u32 make_checksum(struct krb5_ctx *kctx, char *header, int hdrlen, struct xdr_buf *body, int body_offset, u8 *cksumkey, - struct xdr_netobj *cksumout) + unsigned int usage, struct xdr_netobj *cksumout) { struct hash_desc desc; struct scatterlist sg[1]; @@ -208,7 +208,7 @@ out: u32 make_checksum_v2(struct krb5_ctx *kctx, char *header, int hdrlen, struct xdr_buf *body, int body_offset, u8 *cksumkey, - struct xdr_netobj *cksumout) + unsigned int usage, struct xdr_netobj *cksumout) { struct hash_desc desc; struct scatterlist sg[1]; @@ -537,15 +537,18 @@ gss_krb5_aes_encrypt(struct krb5_ctx *kctx, u32 offset, int nblocks, nbytes; struct encryptor_desc desc; u32 cbcbytes; + unsigned int usage; if (kctx->initiate) { cipher = kctx->initiator_enc; aux_cipher = kctx->initiator_enc_aux; cksumkey = kctx->initiator_integ; + usage = KG_USAGE_INITIATOR_SEAL; } else { cipher = kctx->acceptor_enc; aux_cipher = kctx->acceptor_enc_aux; cksumkey = kctx->acceptor_integ; + usage = KG_USAGE_ACCEPTOR_SEAL; } blocksize = crypto_blkcipher_blocksize(cipher); @@ -590,7 +593,8 @@ gss_krb5_aes_encrypt(struct krb5_ctx *kctx, u32 offset, buf->pages = pages; err = make_checksum_v2(kctx, NULL, 0, buf, - offset + GSS_KRB5_TOK_HDR_LEN, cksumkey, &hmac); + offset + GSS_KRB5_TOK_HDR_LEN, + cksumkey, usage, &hmac); buf->pages = save_pages; if (err) return GSS_S_FAILURE; @@ -654,15 +658,18 @@ gss_krb5_aes_decrypt(struct krb5_ctx *kctx, u32 offset, struct xdr_buf *buf, u8 pkt_hmac[GSS_KRB5_MAX_CKSUM_LEN]; int nblocks, blocksize, cbcbytes; struct decryptor_desc desc; + unsigned int usage; if (kctx->initiate) { cipher = kctx->acceptor_enc; aux_cipher = kctx->acceptor_enc_aux; cksum_key = kctx->acceptor_integ; + usage = KG_USAGE_ACCEPTOR_SEAL; } else { cipher = kctx->initiator_enc; aux_cipher = kctx->initiator_enc_aux; cksum_key = kctx->initiator_integ; + usage = KG_USAGE_INITIATOR_SEAL; } blocksize = crypto_blkcipher_blocksize(cipher); @@ -705,7 +712,7 @@ gss_krb5_aes_decrypt(struct krb5_ctx *kctx, u32 offset, struct xdr_buf *buf, our_hmac_obj.data = our_hmac; ret = make_checksum_v2(kctx, NULL, 0, &subbuf, 0, - cksum_key, &our_hmac_obj); + cksum_key, usage, &our_hmac_obj); if (ret) goto out_err; diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c index 477a546..e22fed3 100644 --- a/net/sunrpc/auth_gss/gss_krb5_seal.c +++ b/net/sunrpc/auth_gss/gss_krb5_seal.c @@ -142,7 +142,8 @@ gss_get_mic_v1(struct krb5_ctx *ctx, struct xdr_buf *text, else cksumkey = NULL; - if (make_checksum(ctx, ptr, 8, text, 0, cksumkey, &md5cksum)) + if (make_checksum(ctx, ptr, 8, text, 0, cksumkey, + KG_USAGE_SIGN, &md5cksum)) return GSS_S_FAILURE; memcpy(ptr + GSS_KRB5_TOK_HDR_LEN, md5cksum.data, md5cksum.len); @@ -170,6 +171,7 @@ gss_get_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *text, s32 now; u64 seq_send; u8 *cksumkey; + unsigned int cksum_usage; dprintk("RPC: %s\n", __func__); @@ -182,13 +184,16 @@ gss_get_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *text, spin_unlock(&krb5_seq_lock); *((u64 *)(krb5_hdr + 8)) = cpu_to_be64(seq_send); - if (ctx->initiate) + if (ctx->initiate) { cksumkey = ctx->initiator_sign; - else + cksum_usage = KG_USAGE_INITIATOR_SIGN; + } else { cksumkey = ctx->acceptor_sign; + cksum_usage = KG_USAGE_ACCEPTOR_SIGN; + } if (make_checksum_v2(ctx, krb5_hdr, GSS_KRB5_TOK_HDR_LEN, - text, 0, cksumkey, &cksumobj)) + text, 0, cksumkey, cksum_usage, &cksumobj)) return GSS_S_FAILURE; memcpy(krb5_hdr + GSS_KRB5_TOK_HDR_LEN, cksumobj.data, cksumobj.len); diff --git a/net/sunrpc/auth_gss/gss_krb5_unseal.c b/net/sunrpc/auth_gss/gss_krb5_unseal.c index 4ede4cc..ef91366 100644 --- a/net/sunrpc/auth_gss/gss_krb5_unseal.c +++ b/net/sunrpc/auth_gss/gss_krb5_unseal.c @@ -115,7 +115,7 @@ gss_verify_mic_v1(struct krb5_ctx *ctx, cksumkey = NULL; if (make_checksum(ctx, ptr, 8, message_buffer, 0, - cksumkey, &md5cksum)) + cksumkey, KG_USAGE_SIGN, &md5cksum)) return GSS_S_FAILURE; if (memcmp(md5cksum.data, ptr + GSS_KRB5_TOK_HDR_LEN, @@ -154,6 +154,7 @@ gss_verify_mic_v2(struct krb5_ctx *ctx, u8 *cksumkey; u8 flags; int i; + unsigned int cksum_usage; dprintk("RPC: %s\n", __func__); @@ -174,13 +175,16 @@ gss_verify_mic_v2(struct krb5_ctx *ctx, if (ptr[i] != 0xff) return GSS_S_DEFECTIVE_TOKEN; - if (ctx->initiate) + if (ctx->initiate) { cksumkey = ctx->acceptor_sign; - else + cksum_usage = KG_USAGE_ACCEPTOR_SIGN; + } else { cksumkey = ctx->initiator_sign; + cksum_usage = KG_USAGE_INITIATOR_SIGN; + } if (make_checksum_v2(ctx, ptr, GSS_KRB5_TOK_HDR_LEN, message_buffer, 0, - cksumkey, &cksumobj)) + cksumkey, cksum_usage, &cksumobj)) return GSS_S_FAILURE; if (memcmp(cksumobj.data, ptr + GSS_KRB5_TOK_HDR_LEN, diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c index a1a3585..097cc27 100644 --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c @@ -215,7 +215,7 @@ gss_wrap_kerberos_v1(struct krb5_ctx *kctx, int offset, tmp_pages = buf->pages; buf->pages = pages; if (make_checksum(kctx, ptr, 8, buf, offset + headlen - blocksize, - cksumkey, &md5cksum)) + cksumkey, KG_USAGE_SEAL, &md5cksum)) return GSS_S_FAILURE; buf->pages = tmp_pages; @@ -298,7 +298,7 @@ gss_unwrap_kerberos_v1(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf) cksumkey = NULL; if (make_checksum(kctx, ptr, 8, buf, crypt_offset, - cksumkey, &md5cksum)) + cksumkey, KG_USAGE_SEAL, &md5cksum)) return GSS_S_FAILURE; if (memcmp(md5cksum.data, ptr + GSS_KRB5_TOK_HDR_LEN, |