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implement UnwrapExt

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24781 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2009-02-22 23:25:57 +00:00
parent 3e82b4199c
commit aa64f90c1c
1 changed files with 31 additions and 14 deletions
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45
appl/gssmask/gssmask.c
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@@ -983,37 +983,57 @@ static int
HandleOP(UnwrapExt)
{
OM_uint32 maj_stat, min_stat;
int32_t hContext, flags, seqno;
int32_t hContext, flags, bflags;
krb5_data token, header, trailer;
gss_ctx_id_t ctx;
gss_buffer_desc input_token, output_token;
int conf_state;
gss_iov_buffer_desc iov[3];
int conf_state, iov_len;
gss_qop_t qop_state;
ret32(c, hContext);
ret32(c, flags);
ret32(c, seqno);
ret32(c, bflags);
retdata(c, header);
retdata(c, token);
retdata(c, trailer);
iov_len = sizeof(iov)/sizeof(iov[0]);
if (bflags & WRAP_EXP_ONLY_HEADER)
iov_len -= 1; /* skip trailer and padding, aka dce-style */
ctx = find_handle(c->handles, hContext, handle_context);
if (ctx == NULL)
errx(1, "unwrap: reference to unknown context");
input_token.length = token.length;
input_token.value = token.data;
if (header.length != 0) {
iov[0].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY;
iov[0].buffer.length = header.length;
iov[0].buffer.value = header.data;
} else {
iov[0].type = GSS_IOV_BUFFER_TYPE_EMPTY;
}
iov[1].type = GSS_IOV_BUFFER_TYPE_DATA;
iov[1].buffer.length = token.length;
iov[1].buffer.value = token.data;
maj_stat = gss_unwrap(&min_stat, ctx, &input_token,
&output_token, &conf_state, &qop_state);
if (trailer.length != 0) {
iov[2].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY;
iov[2].buffer.length = trailer.length;
iov[2].buffer.value = trailer.data;
} else {
iov[2].type = GSS_IOV_BUFFER_TYPE_EMPTY;
}
maj_stat = gss_unwrap_iov(&min_stat, ctx, &conf_state, &qop_state,
iov, iov_len);
if (maj_stat != GSS_S_COMPLETE)
errx(1, "gss_unwrap failed: %d/%d", maj_stat, min_stat);
krb5_data_free(&token);
if (maj_stat == GSS_S_COMPLETE) {
token.data = output_token.value;
token.length = output_token.length;
token.data = iov[1].buffer.value;
token.length = iov[1].buffer.length;
} else {
token.data = NULL;
token.length = 0;
@@ -1021,9 +1041,6 @@ HandleOP(UnwrapExt)
put32(c, 0); /* XXX fix gsm_error */
putdata(c, token);
if (maj_stat == GSS_S_COMPLETE)
gss_release_buffer(&min_stat, &output_token);
return 0;
}