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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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RPCSEC_GSS remove all qop parameters
Not only are the qop parameters that are passed around throughout the gssapi unused by any currently implemented mechanism, but there appears to be some doubt as to whether they will ever be used. Let's just kill them off for now. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
parent
14ae162c24
commit
00fd6e1425
14 changed files with 41 additions and 97 deletions
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@ -40,23 +40,19 @@ int gss_import_sec_context(
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struct gss_ctx **ctx_id);
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u32 gss_get_mic(
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struct gss_ctx *ctx_id,
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u32 qop,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token);
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u32 gss_verify_mic(
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struct gss_ctx *ctx_id,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token,
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u32 *qstate);
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struct xdr_netobj *mic_token);
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u32 gss_wrap(
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struct gss_ctx *ctx_id,
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u32 qop,
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int offset,
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struct xdr_buf *outbuf,
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struct page **inpages);
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u32 gss_unwrap(
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struct gss_ctx *ctx_id,
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u32 *qop,
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int offset,
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struct xdr_buf *inbuf);
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u32 gss_delete_sec_context(
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@ -67,7 +63,6 @@ char *gss_service_to_auth_domain_name(struct gss_api_mech *, u32 service);
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struct pf_desc {
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u32 pseudoflavor;
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u32 qop;
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u32 service;
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char *name;
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char *auth_domain_name;
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@ -96,23 +91,19 @@ struct gss_api_ops {
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struct gss_ctx *ctx_id);
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u32 (*gss_get_mic)(
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struct gss_ctx *ctx_id,
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u32 qop,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token);
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u32 (*gss_verify_mic)(
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struct gss_ctx *ctx_id,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token,
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u32 *qstate);
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struct xdr_netobj *mic_token);
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u32 (*gss_wrap)(
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struct gss_ctx *ctx_id,
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u32 qop,
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int offset,
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struct xdr_buf *outbuf,
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struct page **inpages);
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u32 (*gss_unwrap)(
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struct gss_ctx *ctx_id,
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u32 *qop,
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int offset,
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struct xdr_buf *buf);
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void (*gss_delete_sec_context)(
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@ -65,16 +65,6 @@ typedef unsigned int OM_uint32;
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#define GSS_C_MECH_CODE 2
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/*
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* Define the default Quality of Protection for per-message services. Note
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* that an implementation that offers multiple levels of QOP may either reserve
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* a value (for example zero, as assumed here) to mean "default protection", or
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* alternatively may simply equate GSS_C_QOP_DEFAULT to a specific explicit
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* QOP value. However a value of 0 should always be interpreted by a GSSAPI
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* implementation as a request for the default protection level.
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*/
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#define GSS_C_QOP_DEFAULT 0
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/*
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* Expiration time of 2^32-1 seconds means infinite lifetime for a
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* credential or security context
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@ -119,21 +119,21 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
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int body_offset, struct xdr_netobj *cksum);
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u32
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krb5_make_token(struct krb5_ctx *context_handle, int qop_req,
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krb5_make_token(struct krb5_ctx *context_handle,
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struct xdr_buf *input_message_buffer,
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struct xdr_netobj *output_message_buffer);
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u32
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krb5_read_token(struct krb5_ctx *context_handle,
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struct xdr_netobj *input_token_buffer,
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struct xdr_buf *message_buffer, int *qop_state);
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struct xdr_buf *message_buffer);
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u32
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gss_wrap_kerberos(struct gss_ctx *ctx_id, u32 qop, int offset,
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gss_wrap_kerberos(struct gss_ctx *ctx_id, int offset,
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struct xdr_buf *outbuf, struct page **pages);
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u32
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gss_unwrap_kerberos(struct gss_ctx *ctx_id, u32 *qop, int offset,
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gss_unwrap_kerberos(struct gss_ctx *ctx_id, int offset,
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struct xdr_buf *buf);
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@ -41,9 +41,9 @@ struct spkm3_ctx {
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#define SPKM_WRAP_TOK 5
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#define SPKM_DEL_TOK 6
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u32 spkm3_make_token(struct spkm3_ctx *ctx, int qop_req, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
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u32 spkm3_make_token(struct spkm3_ctx *ctx, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
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u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int *qop_state, int toktype);
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u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int toktype);
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#define CKSUMTYPE_RSA_MD5 0x0007
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@ -854,9 +854,7 @@ gss_marshal(struct rpc_task *task, u32 *p)
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*p++ = htonl(RPC_AUTH_GSS);
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mic.data = (u8 *)(p + 1);
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maj_stat = gss_get_mic(ctx->gc_gss_ctx,
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GSS_C_QOP_DEFAULT,
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&verf_buf, &mic);
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maj_stat = gss_get_mic(ctx->gc_gss_ctx, &verf_buf, &mic);
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if (maj_stat == GSS_S_CONTEXT_EXPIRED) {
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cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
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} else if (maj_stat != 0) {
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@ -888,7 +886,7 @@ gss_validate(struct rpc_task *task, u32 *p)
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{
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struct rpc_cred *cred = task->tk_msg.rpc_cred;
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struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
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u32 seq, qop_state;
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u32 seq;
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struct kvec iov;
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struct xdr_buf verf_buf;
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struct xdr_netobj mic;
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@ -909,7 +907,7 @@ gss_validate(struct rpc_task *task, u32 *p)
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mic.data = (u8 *)p;
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mic.len = len;
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maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &verf_buf, &mic, &qop_state);
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maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &verf_buf, &mic);
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if (maj_stat == GSS_S_CONTEXT_EXPIRED)
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cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
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if (maj_stat)
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@ -961,8 +959,7 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
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p = iov->iov_base + iov->iov_len;
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mic.data = (u8 *)(p + 1);
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maj_stat = gss_get_mic(ctx->gc_gss_ctx,
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GSS_C_QOP_DEFAULT, &integ_buf, &mic);
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maj_stat = gss_get_mic(ctx->gc_gss_ctx, &integ_buf, &mic);
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status = -EIO; /* XXX? */
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if (maj_stat == GSS_S_CONTEXT_EXPIRED)
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cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
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@ -1057,8 +1054,7 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
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memcpy(tmp, snd_buf->tail[0].iov_base, snd_buf->tail[0].iov_len);
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snd_buf->tail[0].iov_base = tmp;
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}
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maj_stat = gss_wrap(ctx->gc_gss_ctx, GSS_C_QOP_DEFAULT, offset,
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snd_buf, inpages);
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maj_stat = gss_wrap(ctx->gc_gss_ctx, offset, snd_buf, inpages);
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/* RPC_SLACK_SPACE should prevent this ever happening: */
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BUG_ON(snd_buf->len > snd_buf->buflen);
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status = -EIO;
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@ -1150,8 +1146,7 @@ gss_unwrap_resp_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
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if (xdr_buf_read_netobj(rcv_buf, &mic, mic_offset))
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return status;
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maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &integ_buf,
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&mic, NULL);
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maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &integ_buf, &mic);
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if (maj_stat == GSS_S_CONTEXT_EXPIRED)
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cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
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if (maj_stat != GSS_S_COMPLETE)
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@ -1176,8 +1171,7 @@ gss_unwrap_resp_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
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/* remove padding: */
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rcv_buf->len = offset + opaque_len;
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maj_stat = gss_unwrap(ctx->gc_gss_ctx, NULL,
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offset, rcv_buf);
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maj_stat = gss_unwrap(ctx->gc_gss_ctx, offset, rcv_buf);
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if (maj_stat == GSS_S_CONTEXT_EXPIRED)
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cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
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if (maj_stat != GSS_S_COMPLETE)
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@ -193,15 +193,12 @@ gss_delete_sec_context_kerberos(void *internal_ctx) {
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static u32
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gss_verify_mic_kerberos(struct gss_ctx *ctx,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token,
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u32 *qstate) {
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struct xdr_netobj *mic_token)
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{
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u32 maj_stat = 0;
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int qop_state;
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struct krb5_ctx *kctx = ctx->internal_ctx_id;
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maj_stat = krb5_read_token(kctx, mic_token, message, &qop_state);
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if (!maj_stat && qop_state)
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*qstate = qop_state;
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maj_stat = krb5_read_token(kctx, mic_token, message);
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dprintk("RPC: gss_verify_mic_kerberos returning %d\n", maj_stat);
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return maj_stat;
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@ -209,13 +206,12 @@ gss_verify_mic_kerberos(struct gss_ctx *ctx,
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static u32
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gss_get_mic_kerberos(struct gss_ctx *ctx,
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u32 qop,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token) {
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u32 err = 0;
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struct krb5_ctx *kctx = ctx->internal_ctx_id;
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err = krb5_make_token(kctx, qop, message, mic_token);
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err = krb5_make_token(kctx, message, mic_token);
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dprintk("RPC: gss_get_mic_kerberos returning %d\n",err);
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@ -71,7 +71,7 @@
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#endif
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u32
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krb5_make_token(struct krb5_ctx *ctx, int qop_req,
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krb5_make_token(struct krb5_ctx *ctx,
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struct xdr_buf *text, struct xdr_netobj *token)
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{
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s32 checksum_type;
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@ -83,9 +83,6 @@ krb5_make_token(struct krb5_ctx *ctx, int qop_req,
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now = get_seconds();
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if (qop_req != 0)
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goto out_err;
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switch (ctx->signalg) {
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case SGN_ALG_DES_MAC_MD5:
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checksum_type = CKSUMTYPE_RSA_MD5;
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@ -74,7 +74,7 @@
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u32
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krb5_read_token(struct krb5_ctx *ctx,
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struct xdr_netobj *read_token,
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struct xdr_buf *message_buffer, int *qop_state)
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struct xdr_buf *message_buffer)
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{
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int signalg;
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int sealalg;
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@ -157,9 +157,6 @@ krb5_read_token(struct krb5_ctx *ctx,
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/* it got through unscathed. Make sure the context is unexpired */
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if (qop_state)
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*qop_state = GSS_C_QOP_DEFAULT;
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now = get_seconds();
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ret = GSS_S_CONTEXT_EXPIRED;
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@ -116,7 +116,7 @@ make_confounder(char *p, int blocksize)
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/* XXX factor out common code with seal/unseal. */
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u32
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gss_wrap_kerberos(struct gss_ctx *ctx, u32 qop, int offset,
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gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
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struct xdr_buf *buf, struct page **pages)
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{
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struct krb5_ctx *kctx = ctx->internal_ctx_id;
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@ -132,9 +132,6 @@ gss_wrap_kerberos(struct gss_ctx *ctx, u32 qop, int offset,
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now = get_seconds();
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if (qop != 0)
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goto out_err;
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switch (kctx->signalg) {
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case SGN_ALG_DES_MAC_MD5:
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checksum_type = CKSUMTYPE_RSA_MD5;
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@ -229,8 +226,7 @@ gss_wrap_kerberos(struct gss_ctx *ctx, u32 qop, int offset,
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}
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u32
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gss_unwrap_kerberos(struct gss_ctx *ctx, u32 *qop, int offset,
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struct xdr_buf *buf)
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gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
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{
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struct krb5_ctx *kctx = ctx->internal_ctx_id;
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int signalg;
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@ -328,9 +324,6 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, u32 *qop, int offset,
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/* it got through unscathed. Make sure the context is unexpired */
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if (qop)
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*qop = GSS_C_QOP_DEFAULT;
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now = get_seconds();
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ret = GSS_S_CONTEXT_EXPIRED;
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@ -250,13 +250,11 @@ gss_import_sec_context(const void *input_token, size_t bufsize,
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u32
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gss_get_mic(struct gss_ctx *context_handle,
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u32 qop,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token)
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{
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return context_handle->mech_type->gm_ops
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->gss_get_mic(context_handle,
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qop,
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message,
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mic_token);
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}
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@ -266,35 +264,31 @@ gss_get_mic(struct gss_ctx *context_handle,
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u32
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gss_verify_mic(struct gss_ctx *context_handle,
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struct xdr_buf *message,
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struct xdr_netobj *mic_token,
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u32 *qstate)
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struct xdr_netobj *mic_token)
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{
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return context_handle->mech_type->gm_ops
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->gss_verify_mic(context_handle,
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message,
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mic_token,
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qstate);
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mic_token);
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}
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u32
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gss_wrap(struct gss_ctx *ctx_id,
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u32 qop,
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int offset,
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struct xdr_buf *buf,
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struct page **inpages)
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{
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return ctx_id->mech_type->gm_ops
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->gss_wrap(ctx_id, qop, offset, buf, inpages);
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->gss_wrap(ctx_id, offset, buf, inpages);
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}
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u32
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gss_unwrap(struct gss_ctx *ctx_id,
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u32 *qop,
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int offset,
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struct xdr_buf *buf)
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{
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return ctx_id->mech_type->gm_ops
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->gss_unwrap(ctx_id, qop, offset, buf);
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->gss_unwrap(ctx_id, offset, buf);
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}
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@ -224,18 +224,13 @@ gss_delete_sec_context_spkm3(void *internal_ctx) {
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static u32
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gss_verify_mic_spkm3(struct gss_ctx *ctx,
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struct xdr_buf *signbuf,
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struct xdr_netobj *checksum,
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u32 *qstate) {
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struct xdr_netobj *checksum)
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{
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u32 maj_stat = 0;
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int qop_state = 0;
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struct spkm3_ctx *sctx = ctx->internal_ctx_id;
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dprintk("RPC: gss_verify_mic_spkm3 calling spkm3_read_token\n");
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maj_stat = spkm3_read_token(sctx, checksum, signbuf, &qop_state,
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SPKM_MIC_TOK);
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if (!maj_stat && qop_state)
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*qstate = qop_state;
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maj_stat = spkm3_read_token(sctx, checksum, signbuf, SPKM_MIC_TOK);
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dprintk("RPC: gss_verify_mic_spkm3 returning %d\n", maj_stat);
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return maj_stat;
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@ -243,15 +238,15 @@ gss_verify_mic_spkm3(struct gss_ctx *ctx,
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static u32
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gss_get_mic_spkm3(struct gss_ctx *ctx,
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u32 qop,
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struct xdr_buf *message_buffer,
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struct xdr_netobj *message_token) {
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struct xdr_netobj *message_token)
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{
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u32 err = 0;
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struct spkm3_ctx *sctx = ctx->internal_ctx_id;
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dprintk("RPC: gss_get_mic_spkm3\n");
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err = spkm3_make_token(sctx, qop, message_buffer,
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err = spkm3_make_token(sctx, message_buffer,
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message_token, SPKM_MIC_TOK);
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return err;
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}
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@ -264,8 +259,8 @@ static struct gss_api_ops gss_spkm3_ops = {
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};
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static struct pf_desc gss_spkm3_pfs[] = {
|
||||
{RPC_AUTH_GSS_SPKM, 0, RPC_GSS_SVC_NONE, "spkm3"},
|
||||
{RPC_AUTH_GSS_SPKMI, 0, RPC_GSS_SVC_INTEGRITY, "spkm3i"},
|
||||
{RPC_AUTH_GSS_SPKM, RPC_GSS_SVC_NONE, "spkm3"},
|
||||
{RPC_AUTH_GSS_SPKMI, RPC_GSS_SVC_INTEGRITY, "spkm3i"},
|
||||
};
|
||||
|
||||
static struct gss_api_mech gss_spkm3_mech = {
|
||||
|
|
|
@ -51,7 +51,7 @@
|
|||
*/
|
||||
|
||||
u32
|
||||
spkm3_make_token(struct spkm3_ctx *ctx, int qop_req,
|
||||
spkm3_make_token(struct spkm3_ctx *ctx,
|
||||
struct xdr_buf * text, struct xdr_netobj * token,
|
||||
int toktype)
|
||||
{
|
||||
|
@ -68,8 +68,6 @@ spkm3_make_token(struct spkm3_ctx *ctx, int qop_req,
|
|||
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",
|
||||
|
|
|
@ -52,7 +52,7 @@ u32
|
|||
spkm3_read_token(struct spkm3_ctx *ctx,
|
||||
struct xdr_netobj *read_token, /* checksum */
|
||||
struct xdr_buf *message_buffer, /* signbuf */
|
||||
int *qop_state, int toktype)
|
||||
int toktype)
|
||||
{
|
||||
s32 code;
|
||||
struct xdr_netobj wire_cksum = {.len =0, .data = NULL};
|
||||
|
|
|
@ -566,8 +566,7 @@ gss_verify_header(struct svc_rqst *rqstp, struct rsc *rsci,
|
|||
|
||||
if (rqstp->rq_deferred) /* skip verification of revisited request */
|
||||
return SVC_OK;
|
||||
if (gss_verify_mic(ctx_id, &rpchdr, &checksum, NULL)
|
||||
!= GSS_S_COMPLETE) {
|
||||
if (gss_verify_mic(ctx_id, &rpchdr, &checksum) != GSS_S_COMPLETE) {
|
||||
*authp = rpcsec_gsserr_credproblem;
|
||||
return SVC_DENIED;
|
||||
}
|
||||
|
@ -604,7 +603,7 @@ gss_write_verf(struct svc_rqst *rqstp, struct gss_ctx *ctx_id, u32 seq)
|
|||
xdr_buf_from_iov(&iov, &verf_data);
|
||||
p = rqstp->rq_res.head->iov_base + rqstp->rq_res.head->iov_len;
|
||||
mic.data = (u8 *)(p + 1);
|
||||
maj_stat = gss_get_mic(ctx_id, 0, &verf_data, &mic);
|
||||
maj_stat = gss_get_mic(ctx_id, &verf_data, &mic);
|
||||
if (maj_stat != GSS_S_COMPLETE)
|
||||
return -1;
|
||||
*p++ = htonl(mic.len);
|
||||
|
@ -710,7 +709,7 @@ unwrap_integ_data(struct xdr_buf *buf, u32 seq, struct gss_ctx *ctx)
|
|||
goto out;
|
||||
if (read_bytes_from_xdr_buf(buf, integ_len + 4, mic.data, mic.len))
|
||||
goto out;
|
||||
maj_stat = gss_verify_mic(ctx, &integ_buf, &mic, NULL);
|
||||
maj_stat = gss_verify_mic(ctx, &integ_buf, &mic);
|
||||
if (maj_stat != GSS_S_COMPLETE)
|
||||
goto out;
|
||||
if (ntohl(svc_getu32(&buf->head[0])) != seq)
|
||||
|
@ -1012,7 +1011,7 @@ svcauth_gss_release(struct svc_rqst *rqstp)
|
|||
resv = &resbuf->tail[0];
|
||||
}
|
||||
mic.data = (u8 *)resv->iov_base + resv->iov_len + 4;
|
||||
if (gss_get_mic(gsd->rsci->mechctx, 0, &integ_buf, &mic))
|
||||
if (gss_get_mic(gsd->rsci->mechctx, &integ_buf, &mic))
|
||||
goto out_err;
|
||||
svc_putu32(resv, htonl(mic.len));
|
||||
memset(mic.data + mic.len, 0,
|
||||
|
|
Loading…
Reference in a new issue