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Diffstat (limited to 'source4/heimdal/lib/krb5/pac.c')
-rw-r--r--source4/heimdal/lib/krb5/pac.c196
1 files changed, 116 insertions, 80 deletions
diff --git a/source4/heimdal/lib/krb5/pac.c b/source4/heimdal/lib/krb5/pac.c
index 9a145c48e6..3c55eb3dc3 100644
--- a/source4/heimdal/lib/krb5/pac.c
+++ b/source4/heimdal/lib/krb5/pac.c
@@ -1,34 +1,34 @@
/*
- * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * All rights reserved.
+ * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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.
+ * 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.
+ * 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 Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
+ * 3. Neither the name of the Institute 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 BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE 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.
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE 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 "krb5_locl.h"
@@ -45,7 +45,7 @@ struct PAC_INFO_BUFFER {
struct PACTYPE {
uint32_t numbuffers;
- uint32_t version;
+ uint32_t version;
struct PAC_INFO_BUFFER buffers[1];
};
@@ -70,7 +70,7 @@ struct krb5_pac_data {
#define CHECK(r,f,l) \
do { \
if (((r) = f ) != 0) { \
- krb5_clear_error_string(context); \
+ krb5_clear_error_message(context); \
goto l; \
} \
} while(0)
@@ -93,14 +93,14 @@ krb5_pac_parse(krb5_context context, const void *ptr, size_t len,
p = calloc(1, sizeof(*p));
if (p == NULL) {
ret = ENOMEM;
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
sp = krb5_storage_from_readonly_mem(ptr, len);
if (sp == NULL) {
ret = ENOMEM;
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
krb5_storage_set_flags(sp, KRB5_STORAGE_BYTEORDER_LE);
@@ -109,20 +109,22 @@ krb5_pac_parse(krb5_context context, const void *ptr, size_t len,
CHECK(ret, krb5_ret_uint32(sp, &tmp2), out);
if (tmp < 1) {
ret = EINVAL; /* Too few buffers */
- krb5_set_error_message(context, ret, "PAC have too few buffer");
+ krb5_set_error_message(context, ret, N_("PAC have too few buffer", ""));
goto out;
}
if (tmp2 != 0) {
ret = EINVAL; /* Wrong version */
- krb5_set_error_message(context, ret, "PAC have wrong version");
+ krb5_set_error_message(context, ret,
+ N_("PAC have wrong version %d", ""),
+ (int)tmp2);
goto out;
}
- p->pac = calloc(1,
+ p->pac = calloc(1,
sizeof(*p->pac) + (sizeof(p->pac->buffers[0]) * (tmp - 1)));
if (p->pac == NULL) {
ret = ENOMEM;
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
@@ -144,29 +146,33 @@ krb5_pac_parse(krb5_context context, const void *ptr, size_t len,
/* consistency checks */
if (p->pac->buffers[i].offset_lo & (PAC_ALIGNMENT - 1)) {
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC out of allignment");
+ krb5_set_error_message(context, ret,
+ N_("PAC out of allignment", ""));
goto out;
}
if (p->pac->buffers[i].offset_hi) {
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC high offset set");
+ krb5_set_error_message(context, ret,
+ N_("PAC high offset set", ""));
goto out;
}
if (p->pac->buffers[i].offset_lo > len) {
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC offset off end");
+ krb5_set_error_message(context, ret,
+ N_("PAC offset off end", ""));
goto out;
}
if (p->pac->buffers[i].offset_lo < header_end) {
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC offset inside header: %lu %lu",
- (unsigned long)p->pac->buffers[i].offset_lo,
- (unsigned long)header_end);
+ krb5_set_error_message(context, ret,
+ N_("PAC offset inside header: %lu %lu", ""),
+ (unsigned long)p->pac->buffers[i].offset_lo,
+ (unsigned long)header_end);
goto out;
}
if (p->pac->buffers[i].buffersize > len - p->pac->buffers[i].offset_lo){
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC length off end");
+ krb5_set_error_message(context, ret, N_("PAC length off end", ""));
goto out;
}
@@ -174,21 +180,24 @@ krb5_pac_parse(krb5_context context, const void *ptr, size_t len,
if (p->pac->buffers[i].type == PAC_SERVER_CHECKSUM) {
if (p->server_checksum) {
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC have two server checksums");
+ krb5_set_error_message(context, ret,
+ N_("PAC have two server checksums", ""));
goto out;
}
p->server_checksum = &p->pac->buffers[i];
} else if (p->pac->buffers[i].type == PAC_PRIVSVR_CHECKSUM) {
if (p->privsvr_checksum) {
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC have two KDC checksums");
+ krb5_set_error_message(context, ret,
+ N_("PAC have two KDC checksums", ""));
goto out;
}
p->privsvr_checksum = &p->pac->buffers[i];
} else if (p->pac->buffers[i].type == PAC_LOGON_NAME) {
if (p->logon_name) {
ret = EINVAL;
- krb5_set_error_message(context, ret, "PAC have two logon names");
+ krb5_set_error_message(context, ret,
+ N_("PAC have two logon names", ""));
goto out;
}
p->logon_name = &p->pac->buffers[i];
@@ -225,14 +234,14 @@ krb5_pac_init(krb5_context context, krb5_pac *pac)
p = calloc(1, sizeof(*p));
if (p == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
p->pac = calloc(1, sizeof(*p->pac));
if (p->pac == NULL) {
free(p);
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
@@ -240,7 +249,7 @@ krb5_pac_init(krb5_context context, krb5_pac *pac)
if (ret) {
free (p->pac);
free(p);
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
return ret;
}
@@ -263,7 +272,7 @@ krb5_pac_add_buffer(krb5_context context, krb5_pac p,
ptr = realloc(p->pac,
sizeof(*p->pac) + (sizeof(p->pac->buffers[0]) * len));
if (ptr == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
p->pac = ptr;
@@ -284,17 +293,17 @@ krb5_pac_add_buffer(krb5_context context, krb5_pac p,
krb5_set_error_message(context, EINVAL, "integer overrun");
return EINVAL;
}
-
+
/* align to PAC_ALIGNMENT */
len = ((len + PAC_ALIGNMENT - 1) / PAC_ALIGNMENT) * PAC_ALIGNMENT;
ret = krb5_data_realloc(&p->data, len);
if (ret) {
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
return ret;
}
- /*
+ /*
* make place for new PAC INFO BUFFER header
*/
header_end = PACTYPE_SIZE + (PAC_INFO_BUFFER_SIZE * p->pac->numbuffers);
@@ -317,6 +326,20 @@ krb5_pac_add_buffer(krb5_context context, krb5_pac p,
return 0;
}
+/**
+ * Get the PAC buffer of specific type from the pac.
+ *
+ * @param context Kerberos 5 context.
+ * @param p the pac structure returned by krb5_pac_parse().
+ * @param type type of buffer to get
+ * @param data return data, free with krb5_data_free().
+ *
+ * @return Returns 0 to indicate success. Otherwise an kerberos et
+ * error code is returned, see krb5_get_error_message().
+ *
+ * @ingroup krb5_pac
+ */
+
krb5_error_code
krb5_pac_get_buffer(krb5_context context, krb5_pac p,
uint32_t type, krb5_data *data)
@@ -325,15 +348,15 @@ krb5_pac_get_buffer(krb5_context context, krb5_pac p,
uint32_t i;
for (i = 0; i < p->pac->numbuffers; i++) {
- size_t len = p->pac->buffers[i].buffersize;
- size_t offset = p->pac->buffers[i].offset_lo;
+ const size_t len = p->pac->buffers[i].buffersize;
+ const size_t offset = p->pac->buffers[i].offset_lo;
if (p->pac->buffers[i].type != type)
continue;
ret = krb5_data_copy(data, (unsigned char *)p->data.data + offset, len);
if (ret) {
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
return ret;
}
return 0;
@@ -358,7 +381,7 @@ krb5_pac_get_types(krb5_context context,
*types = calloc(p->pac->numbuffers, sizeof(*types));
if (*types == NULL) {
*len = 0;
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
for (i = 0; i < p->pac->numbuffers; i++)
@@ -402,19 +425,19 @@ verify_checksum(krb5_context context,
sp = krb5_storage_from_mem((char *)data->data + sig->offset_lo,
sig->buffersize);
if (sp == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
krb5_storage_set_flags(sp, KRB5_STORAGE_BYTEORDER_LE);
CHECK(ret, krb5_ret_uint32(sp, &type), out);
cksum.cksumtype = type;
- cksum.checksum.length =
+ cksum.checksum.length =
sig->buffersize - krb5_storage_seek(sp, 0, SEEK_CUR);
cksum.checksum.data = malloc(cksum.checksum.length);
if (cksum.checksum.data == NULL) {
ret = ENOMEM;
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
ret = krb5_storage_read(sp, cksum.checksum.data, cksum.checksum.length);
@@ -517,7 +540,7 @@ verify_logonname(krb5_context context,
sp = krb5_storage_from_readonly_mem((const char *)data->data + logon_name->offset_lo,
logon_name->buffersize);
if (sp == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
@@ -546,7 +569,7 @@ verify_logonname(krb5_context context,
s = malloc(len);
if (s == NULL) {
krb5_storage_free(sp);
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
ret = krb5_storage_read(sp, s, len);
@@ -564,7 +587,7 @@ verify_logonname(krb5_context context,
ucs2 = malloc(sizeof(ucs2[0]) * ucs2len);
if (ucs2 == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
ret = wind_ucs2read(s, len, &flags, ucs2, &ucs2len);
@@ -584,7 +607,7 @@ verify_logonname(krb5_context context,
s = malloc(u8len);
if (s == NULL) {
free(ucs2);
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
ret = wind_ucs2utf8(ucs2, ucs2len, s, &u8len);
@@ -598,7 +621,7 @@ verify_logonname(krb5_context context,
free(s);
if (ret)
return ret;
-
+
if (krb5_principal_compare_any_realm(context, principal, p2) != TRUE) {
ret = EINVAL;
krb5_set_error_message(context, ret, "PAC logon name mismatch");
@@ -614,9 +637,9 @@ out:
*/
static krb5_error_code
-build_logon_name(krb5_context context,
+build_logon_name(krb5_context context,
time_t authtime,
- krb5_const_principal principal,
+ krb5_const_principal principal,
krb5_data *logon)
{
krb5_error_code ret;
@@ -631,7 +654,7 @@ build_logon_name(krb5_context context,
sp = krb5_storage_emem();
if (sp == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
krb5_storage_set_flags(sp, KRB5_STORAGE_BYTEORDER_LE);
@@ -645,7 +668,7 @@ build_logon_name(krb5_context context,
goto out;
len = strlen(s);
-
+
CHECK(ret, krb5_store_uint16(sp, len * 2), out);
#if 1 /* cheat for now */
@@ -682,12 +705,24 @@ out:
}
-/*
+/**
+ * Verify the PAC.
*
+ * @param context Kerberos 5 context.
+ * @param pac the pac structure returned by krb5_pac_parse().
+ * @param authtime The time of the ticket the PAC belongs to.
+ * @param principal the principal to verify.
+ * @param server The service key, most always be given.
+ * @param privsvr The KDC key, may be given.
+
+ * @return Returns 0 to indicate success. Otherwise an kerberos et
+ * error code is returned, see krb5_get_error_message().
+ *
+ * @ingroup krb5_pac
*/
krb5_error_code
-krb5_pac_verify(krb5_context context,
+krb5_pac_verify(krb5_context context,
const krb5_pac pac,
time_t authtime,
krb5_const_principal principal,
@@ -709,7 +744,7 @@ krb5_pac_verify(krb5_context context,
return EINVAL;
}
- ret = verify_logonname(context,
+ ret = verify_logonname(context,
pac->logon_name,
&pac->data,
authtime,
@@ -717,7 +752,7 @@ krb5_pac_verify(krb5_context context,
if (ret)
return ret;
- /*
+ /*
* in the service case, clean out data option of the privsvr and
* server checksum before checking the checksum.
*/
@@ -752,6 +787,7 @@ krb5_pac_verify(krb5_context context,
return ret;
}
if (privsvr) {
+ /* The priv checksum covers the server checksum */
ret = verify_checksum(context,
pac->privsvr_checksum,
&pac->data,
@@ -782,7 +818,7 @@ fill_zeros(krb5_context context, krb5_storage *sp, size_t len)
l = sizeof(zeros);
sret = krb5_storage_write(sp, zeros, l);
if (sret <= 0) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
len -= sret;
@@ -791,7 +827,7 @@ fill_zeros(krb5_context context, krb5_storage *sp, size_t len)
}
static krb5_error_code
-pac_checksum(krb5_context context,
+pac_checksum(krb5_context context,
const krb5_keyblock *key,
uint32_t *cksumtype,
size_t *cksumsize)
@@ -817,7 +853,7 @@ pac_checksum(krb5_context context,
ret = krb5_checksumsize(context, cktype, cksumsize);
if (ret)
return ret;
-
+
*cksumtype = (uint32_t)cktype;
return 0;
@@ -855,7 +891,7 @@ _krb5_pac_sign(krb5_context context,
ptr = realloc(p->pac, sizeof(*p->pac) + (sizeof(p->pac->buffers[0]) * (p->pac->numbuffers + num - 1)));
if (ptr == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
p->pac = ptr;
@@ -893,7 +929,7 @@ _krb5_pac_sign(krb5_context context,
/* Encode PAC */
sp = krb5_storage_emem();
if (sp == NULL) {
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
krb5_storage_set_flags(sp, KRB5_STORAGE_BYTEORDER_LE);
@@ -901,7 +937,7 @@ _krb5_pac_sign(krb5_context context,
spdata = krb5_storage_emem();
if (spdata == NULL) {
krb5_storage_free(sp);
- krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
krb5_storage_set_flags(spdata, KRB5_STORAGE_BYTEORDER_LE);
@@ -941,7 +977,7 @@ _krb5_pac_sign(krb5_context context,
sret = krb5_storage_write(spdata, ptr, len);
if (sret != len) {
ret = ENOMEM;
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
/* XXX if not aligned, fill_zeros */
@@ -972,21 +1008,21 @@ _krb5_pac_sign(krb5_context context,
/* export PAC */
ret = krb5_storage_to_data(spdata, &d);
if (ret) {
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
ret = krb5_storage_write(sp, d.data, d.length);
if (ret != d.length) {
krb5_data_free(&d);
ret = ENOMEM;
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
krb5_data_free(&d);
ret = krb5_storage_to_data(sp, &d);
if (ret) {
- krb5_set_error_message(context, ret, "malloc: out of memory");
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto out;
}
generated by cgit (git 2.34.1) at 2024-07-12 10:20:06 +0000