X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=net%2Fsunrpc%2Fauth_gss%2Fgss_krb5_crypto.c;h=e11a40b25cce68d40a2649cb999793d235fd455a;hb=0cd43f83d381c4246a08cd775834833d6fd64805;hp=97c981fa6b8ee4a48118cf46801e1fef60388b23;hpb=81cfb8864c73230eb1c37753aba517db15cf4d8f;p=powerpc.git diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c index 97c981fa6b..e11a40b25c 100644 --- a/net/sunrpc/auth_gss/gss_krb5_crypto.c +++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c @@ -34,6 +34,7 @@ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ +#include #include #include #include @@ -49,7 +50,7 @@ u32 krb5_encrypt( - struct crypto_tfm *tfm, + struct crypto_blkcipher *tfm, void * iv, void * in, void * out, @@ -58,26 +59,27 @@ krb5_encrypt( u32 ret = -EINVAL; struct scatterlist sg[1]; u8 local_iv[16] = {0}; + struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv }; dprintk("RPC: krb5_encrypt: input data:\n"); print_hexl((u32 *)in, length, 0); - if (length % crypto_tfm_alg_blocksize(tfm) != 0) + if (length % crypto_blkcipher_blocksize(tfm) != 0) goto out; - if (crypto_tfm_alg_ivsize(tfm) > 16) { + if (crypto_blkcipher_ivsize(tfm) > 16) { dprintk("RPC: gss_k5encrypt: tfm iv size to large %d\n", - crypto_tfm_alg_ivsize(tfm)); + crypto_blkcipher_ivsize(tfm)); goto out; } if (iv) - memcpy(local_iv, iv, crypto_tfm_alg_ivsize(tfm)); + memcpy(local_iv, iv, crypto_blkcipher_ivsize(tfm)); memcpy(out, in, length); sg_set_buf(sg, out, length); - ret = crypto_cipher_encrypt_iv(tfm, sg, sg, length, local_iv); + ret = crypto_blkcipher_encrypt_iv(&desc, sg, sg, length); dprintk("RPC: krb5_encrypt: output data:\n"); print_hexl((u32 *)out, length, 0); @@ -90,7 +92,7 @@ EXPORT_SYMBOL(krb5_encrypt); u32 krb5_decrypt( - struct crypto_tfm *tfm, + struct crypto_blkcipher *tfm, void * iv, void * in, void * out, @@ -99,25 +101,26 @@ krb5_decrypt( u32 ret = -EINVAL; struct scatterlist sg[1]; u8 local_iv[16] = {0}; + struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv }; dprintk("RPC: krb5_decrypt: input data:\n"); print_hexl((u32 *)in, length, 0); - if (length % crypto_tfm_alg_blocksize(tfm) != 0) + if (length % crypto_blkcipher_blocksize(tfm) != 0) goto out; - if (crypto_tfm_alg_ivsize(tfm) > 16) { + if (crypto_blkcipher_ivsize(tfm) > 16) { dprintk("RPC: gss_k5decrypt: tfm iv size to large %d\n", - crypto_tfm_alg_ivsize(tfm)); + crypto_blkcipher_ivsize(tfm)); goto out; } if (iv) - memcpy(local_iv,iv, crypto_tfm_alg_ivsize(tfm)); + memcpy(local_iv,iv, crypto_blkcipher_ivsize(tfm)); memcpy(out, in, length); sg_set_buf(sg, out, length); - ret = crypto_cipher_decrypt_iv(tfm, sg, sg, length, local_iv); + ret = crypto_blkcipher_decrypt_iv(&desc, sg, sg, length); dprintk("RPC: krb5_decrypt: output_data:\n"); print_hexl((u32 *)out, length, 0); @@ -197,11 +200,9 @@ out: static int checksummer(struct scatterlist *sg, void *data) { - struct crypto_tfm *tfm = (struct crypto_tfm *)data; + struct hash_desc *desc = data; - crypto_digest_update(tfm, sg, 1); - - return 0; + return crypto_hash_update(desc, sg, sg->length); } /* checksum the plaintext data and hdrlen bytes of the token header */ @@ -210,9 +211,9 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body, int body_offset, struct xdr_netobj *cksum) { char *cksumname; - struct crypto_tfm *tfm = NULL; /* XXX add to ctx? */ + struct hash_desc desc; /* XXX add to ctx? */ struct scatterlist sg[1]; - u32 code = GSS_S_FAILURE; + int err; switch (cksumtype) { case CKSUMTYPE_RSA_MD5: @@ -221,31 +222,37 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body, default: dprintk("RPC: krb5_make_checksum:" " unsupported checksum %d", cksumtype); - goto out; + return GSS_S_FAILURE; } - if (!(tfm = crypto_alloc_tfm(cksumname, CRYPTO_TFM_REQ_MAY_SLEEP))) + desc.tfm = crypto_alloc_hash(cksumname, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(desc.tfm)) + return GSS_S_FAILURE; + cksum->len = crypto_hash_digestsize(desc.tfm); + desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP; + + err = crypto_hash_init(&desc); + if (err) goto out; - cksum->len = crypto_tfm_alg_digestsize(tfm); - if ((cksum->data = kmalloc(cksum->len, GFP_KERNEL)) == NULL) + sg_set_buf(sg, header, hdrlen); + err = crypto_hash_update(&desc, sg, hdrlen); + if (err) + goto out; + err = process_xdr_buf(body, body_offset, body->len - body_offset, + checksummer, &desc); + if (err) goto out; + err = crypto_hash_final(&desc, cksum->data); - crypto_digest_init(tfm); - sg_set_buf(sg, header, hdrlen); - crypto_digest_update(tfm, sg, 1); - process_xdr_buf(body, body_offset, body->len - body_offset, - checksummer, tfm); - crypto_digest_final(tfm, cksum->data); - code = 0; out: - crypto_free_tfm(tfm); - return code; + crypto_free_hash(desc.tfm); + return err ? GSS_S_FAILURE : 0; } EXPORT_SYMBOL(make_checksum); struct encryptor_desc { u8 iv[8]; /* XXX hard-coded blocksize */ - struct crypto_tfm *tfm; + struct blkcipher_desc desc; int pos; struct xdr_buf *outbuf; struct page **pages; @@ -290,8 +297,8 @@ encryptor(struct scatterlist *sg, void *data) if (thislen == 0) return 0; - ret = crypto_cipher_encrypt_iv(desc->tfm, desc->outfrags, desc->infrags, - thislen, desc->iv); + ret = crypto_blkcipher_encrypt_iv(&desc->desc, desc->outfrags, + desc->infrags, thislen); if (ret) return ret; if (fraglen) { @@ -310,16 +317,18 @@ encryptor(struct scatterlist *sg, void *data) } int -gss_encrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *buf, int offset, - struct page **pages) +gss_encrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf, + int offset, struct page **pages) { int ret; struct encryptor_desc desc; - BUG_ON((buf->len - offset) % crypto_tfm_alg_blocksize(tfm) != 0); + BUG_ON((buf->len - offset) % crypto_blkcipher_blocksize(tfm) != 0); memset(desc.iv, 0, sizeof(desc.iv)); - desc.tfm = tfm; + desc.desc.tfm = tfm; + desc.desc.info = desc.iv; + desc.desc.flags = 0; desc.pos = offset; desc.outbuf = buf; desc.pages = pages; @@ -334,7 +343,7 @@ EXPORT_SYMBOL(gss_encrypt_xdr_buf); struct decryptor_desc { u8 iv[8]; /* XXX hard-coded blocksize */ - struct crypto_tfm *tfm; + struct blkcipher_desc desc; struct scatterlist frags[4]; int fragno; int fraglen; @@ -360,8 +369,8 @@ decryptor(struct scatterlist *sg, void *data) if (thislen == 0) return 0; - ret = crypto_cipher_decrypt_iv(desc->tfm, desc->frags, desc->frags, - thislen, desc->iv); + ret = crypto_blkcipher_decrypt_iv(&desc->desc, desc->frags, + desc->frags, thislen); if (ret) return ret; if (fraglen) { @@ -378,15 +387,18 @@ decryptor(struct scatterlist *sg, void *data) } int -gss_decrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *buf, int offset) +gss_decrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf, + int offset) { struct decryptor_desc desc; /* XXXJBF: */ - BUG_ON((buf->len - offset) % crypto_tfm_alg_blocksize(tfm) != 0); + BUG_ON((buf->len - offset) % crypto_blkcipher_blocksize(tfm) != 0); memset(desc.iv, 0, sizeof(desc.iv)); - desc.tfm = tfm; + desc.desc.tfm = tfm; + desc.desc.info = desc.iv; + desc.desc.flags = 0; desc.fragno = 0; desc.fraglen = 0; return process_xdr_buf(buf, offset, buf->len - offset, decryptor, &desc);