From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- net/sunrpc/auth_gss/gss_spkm3_seal.c | 132 +++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 net/sunrpc/auth_gss/gss_spkm3_seal.c (limited to 'net/sunrpc/auth_gss/gss_spkm3_seal.c') diff --git a/net/sunrpc/auth_gss/gss_spkm3_seal.c b/net/sunrpc/auth_gss/gss_spkm3_seal.c new file mode 100644 index 00000000000..25339868d46 --- /dev/null +++ b/net/sunrpc/auth_gss/gss_spkm3_seal.c @@ -0,0 +1,132 @@ +/* + * linux/net/sunrpc/gss_spkm3_seal.c + * + * Copyright (c) 2003 The Regents of the University of Michigan. + * All rights reserved. + * + * Andy Adamson + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include +#include +#include +#include +#include +#include + +#ifdef RPC_DEBUG +# define RPCDBG_FACILITY RPCDBG_AUTH +#endif + +/* + * spkm3_make_token() + * + * Only SPKM_MIC_TOK with md5 intg-alg is supported + */ + +u32 +spkm3_make_token(struct spkm3_ctx *ctx, int qop_req, + struct xdr_buf * text, struct xdr_netobj * token, + int toktype) +{ + s32 checksum_type; + char tokhdrbuf[25]; + struct xdr_netobj md5cksum = {.len = 0, .data = NULL}; + struct xdr_netobj mic_hdr = {.len = 0, .data = tokhdrbuf}; + int tmsglen, tokenlen = 0; + unsigned char *ptr; + s32 now; + int ctxelen = 0, ctxzbit = 0; + int md5elen = 0, md5zbit = 0; + + dprintk("RPC: spkm3_make_token\n"); + + now = jiffies; + if (qop_req != 0) + goto out_err; + + if (ctx->ctx_id.len != 16) { + dprintk("RPC: spkm3_make_token BAD ctx_id.len %d\n", + ctx->ctx_id.len); + goto out_err; + } + + switch (ctx->intg_alg) { + case NID_md5: + checksum_type = CKSUMTYPE_RSA_MD5; + break; + default: + dprintk("RPC: gss_spkm3_seal: ctx->signalg %d not" + " supported\n", ctx->intg_alg); + goto out_err; + } + /* XXX since we don't support WRAP, perhaps we don't care... */ + if (ctx->conf_alg != NID_cast5_cbc) { + dprintk("RPC: gss_spkm3_seal: ctx->sealalg %d not supported\n", + ctx->conf_alg); + goto out_err; + } + + if (toktype == SPKM_MIC_TOK) { + tmsglen = 0; + /* Calculate checksum over the mic-header */ + asn1_bitstring_len(&ctx->ctx_id, &ctxelen, &ctxzbit); + spkm3_mic_header(&mic_hdr.data, &mic_hdr.len, ctx->ctx_id.data, + ctxelen, ctxzbit); + + if (make_checksum(checksum_type, mic_hdr.data, mic_hdr.len, + text, &md5cksum)) + goto out_err; + + asn1_bitstring_len(&md5cksum, &md5elen, &md5zbit); + tokenlen = 10 + ctxelen + 1 + 2 + md5elen + 1; + + /* Create token header using generic routines */ + token->len = g_token_size(&ctx->mech_used, tokenlen + tmsglen); + + ptr = token->data; + g_make_token_header(&ctx->mech_used, tokenlen + tmsglen, &ptr); + + spkm3_make_mic_token(&ptr, tokenlen, &mic_hdr, &md5cksum, md5elen, md5zbit); + } else if (toktype == SPKM_WRAP_TOK) { /* Not Supported */ + dprintk("RPC: gss_spkm3_seal: SPKM_WRAP_TOK not supported\n"); + goto out_err; + } + kfree(md5cksum.data); + + /* XXX need to implement sequence numbers, and ctx->expired */ + + return GSS_S_COMPLETE; +out_err: + if (md5cksum.data) + kfree(md5cksum.data); + token->data = NULL; + token->len = 0; + return GSS_S_FAILURE; +} -- cgit v1.2.3