* \brief Encoding and decoding packets
*/
-#include <networkradius-devel/client.h>
+#include "client.h"
-#if NR_MAX_PACKET_LEN < 64
-#error NR_MAX_PACKET_LEN is too small. It should be at least 64.
+#if RS_MAX_PACKET_LEN < 64
+#error RS_MAX_PACKET_LEN is too small. It should be at least 64.
#endif
-#if NR_MAX_PACKET_LEN > 16384
-#error NR_MAX_PACKET_LEN is too large. It should be smaller than 16K.
+#if RS_MAX_PACKET_LEN > 16384
+#error RS_MAX_PACKET_LEN is too large. It should be smaller than 16K.
#endif
-const char *nr_packet_codes[NR_MAX_PACKET_CODE + 1] = {
+const char *nr_packet_codes[RS_MAX_PACKET_CODE + 1] = {
NULL,
"Access-Request",
"Access-Accept",
};
-static uint64_t allowed_responses[NR_MAX_PACKET_CODE + 1] = {
+static uint64_t allowed_responses[RS_MAX_PACKET_CODE + 1] = {
0,
(1 << PW_ACCESS_ACCEPT) | (1 << PW_ACCESS_REJECT) | (1 << PW_ACCESS_CHALLENGE),
0, 0,
if (!data || (sizeof_data < 20)) {
nr_debug_error("Invalid argument");
- return -NR_ERR_INVALID_ARG;
+ return -RSE_INVAL;
}
packet_len = (data[2] << 8) | data[3];
if (packet_len < 20) {
nr_debug_error("Packet length is too small");
- return -NR_ERR_PACKET_TOO_SMALL;
+ return -RSE_PACKET_TOO_SMALL;
}
if (packet_len > sizeof_data) {
nr_debug_error("Packet length overflows received data");
- return -NR_ERR_PACKET_TOO_LARGE;
+ return -RSE_PACKET_TOO_LARGE;
}
/*
for (attr = data + 20; attr < end; attr += attr[1]) {
if ((attr + 2) > end) {
nr_debug_error("Attribute overflows packet");
- return -NR_ERR_ATTR_OVERFLOW;
+ return -RSE_ATTR_OVERFLOW;
}
if (attr[1] < 2) {
nr_debug_error("Attribute length is too small");
- return -NR_ERR_ATTR_TOO_SMALL;
+ return -RSE_ATTR_TOO_SMALL;
}
if ((attr + attr[1]) > end) {
nr_debug_error("Attribute length is too large");
- return -NR_ERR_ATTR_TOO_LARGE;
+ return -RSE_ATTR_TOO_LARGE;
}
}
{
int rcode;
- if (!packet) return -NR_ERR_INVALID_ARG;
+ if (!packet) return -RSE_INVAL;
- if ((packet->flags & NR_PACKET_OK) != 0) return 0;
+ if ((packet->flags & RS_PACKET_OK) != 0) return 0;
rcode = nr_packet_ok_raw(packet->data, packet->length);
if (rcode < 0) return rcode;
- packet->flags |= NR_PACKET_OK;
+ packet->flags |= RS_PACKET_OK;
return 0;
}
if (ma[1] != 18) {
nr_debug_error("Message-Authenticator has invalid length");
- return -NR_ERR_MSG_AUTH_LEN;
+ return -RSE_MSG_AUTH_LEN;
}
memcpy(packet_vector, data + 4, sizeof(packet_vector));
case PW_ACCESS_CHALLENGE:
if (!original) {
nr_debug_error("Cannot validate response without request");
- return -NR_ERR_REQUEST_REQUIRED;
+ return -RSE_REQUEST_REQUIRED;
}
memcpy(data + 4, original->vector, sizeof(original->vector));
break;
if (digest_cmp(calc_auth_vector, msg_auth_vector,
sizeof(calc_auth_vector)) != 0) {
nr_debug_error("Invalid Message-Authenticator");
- return -NR_ERR_MSG_AUTH_WRONG;
+ return -RSE_MSG_AUTH_WRONG;
}
return 1;
{
uint8_t packet_vector[sizeof(original->vector)];
uint8_t calc_digest[sizeof(original->vector)];
- NR_MD5_CTX ctx;
+ RS_MD5_CTX ctx;
if ((data[0] == PW_ACCESS_REQUEST) ||
(data[0] == PW_STATUS_SERVER)) return 1;
memcpy(data + 4, original->vector, sizeof(original->vector));
}
- nr_MD5Init(&ctx);
- nr_MD5Update(&ctx, data, length);
- nr_MD5Update(&ctx, original->secret, original->sizeof_secret);
- nr_MD5Final(calc_digest, &ctx);
+ RS_MD5Init(&ctx);
+ RS_MD5Update(&ctx, data, length);
+ RS_MD5Update(&ctx, original->secret, original->sizeof_secret);
+ RS_MD5Final(calc_digest, &ctx);
memcpy(data + 4, packet_vector, sizeof(packet_vector));
if (digest_cmp(calc_digest, packet_vector,
sizeof(packet_vector)) != 0) {
nr_debug_error("Invalid authentication vector");
- return -NR_ERR_AUTH_VECTOR_WRONG;
+ return -RSE_AUTH_VECTOR_WRONG;
}
return 0;
if (!packet || !packet->data || !packet->secret) {
nr_debug_error("Invalid argument");
- return -NR_ERR_INVALID_ARG;
+ return -RSE_INVAL;
}
- if ((packet->flags & NR_PACKET_VERIFIED) != 0) return 0;
+ if ((packet->flags & RS_PACKET_VERIFIED) != 0) return 0;
/*
* Packet isn't well formed. Ignore it.
if (original) {
uint64_t mask;
- if (original->code > NR_MAX_PACKET_CODE) {
+ if (original->code > RS_MAX_PACKET_CODE) {
nr_debug_error("Invalid original code %u",
original->code);
- return -NR_ERR_REQUEST_CODE_INVALID;
+ return -RSE_INVALID_REQUEST_CODE;
}
if (packet->data[1] != original->id) {
nr_debug_error("Ignoring response with wrong ID %u",
packet->data[1]);
- return -NR_ERR_RESPONSE_ID_INVALID;
+ return -RSE_INVALID_RESPONSE_CODE;
}
mask = 1;
if ((allowed_responses[original->code] & mask) == 0) {
nr_debug_error("Ignoring response with wrong code %u",
packet->data[0]);
- return -NR_ERR_RESPONSE_CODE_INVALID;
+ return -RSE_INVALID_RESPONSE_CODE;
}
if ((memcmp(&packet->src, &original->dst, sizeof(packet->src)) != 0) &&
- (sockaddr_cmp(&(packet->src), &(original->dst)) != 0)) {
+ (evutil_sockaddr_cmp(&(packet->src), &(original->dst)) != 0)) {
nr_debug_error("Ignoring response from wrong IP/port");
- return -NR_ERR_RESPONSE_SRC_INVALID;
+ return -RSE_INVALID_RESPONSE_SRC;
}
} else if (allowed_responses[packet->data[0]] != 0) {
nr_debug_error("Ignoring response without original");
- return -NR_ERR_RESPONSE_CODE_INVALID;
+ return -RSE_INVALID_RESPONSE_CODE;
}
#ifdef PW_MESSAGE_AUTHENTICATOR
rcode = packet_auth_ok(original, packet->data, packet->length);
if (rcode < 0) return rcode;
- packet->flags |= NR_PACKET_VERIFIED;
+ packet->flags |= RS_PACKET_VERIFIED;
return 0;
}
const uint8_t *end;
VALUE_PAIR **tail, *vp;
- if (!packet) return -NR_ERR_INVALID_ARG;
+ if (!packet) return -RSE_INVAL;
- if ((packet->flags & NR_PACKET_DECODED) != 0) return 0;
+ if ((packet->flags & RS_PACKET_DECODED) != 0) return 0;
rcode = nr_packet_ok(packet);
if (rcode < 0) return rcode;
vp = vp->next;
}
- if (num_attributes > NR_MAX_ATTRIBUTES) {
+ if (num_attributes > RS_MAX_ATTRIBUTES) {
nr_debug_error("Too many attributes");
nr_vp_free(&packet->vps);
- return -NR_ERR_TOO_MANY_ATTRS;
+ return -RSE_TOO_MANY_ATTRS;
}
}
packet->id = data[1];
memcpy(packet->vector, data + 4, sizeof(packet->vector));
- packet->flags |= NR_PACKET_DECODED;
+ packet->flags |= RS_PACKET_DECODED;
return 0;
}
const uint8_t *attr, *end;
#endif
- if ((packet->flags & NR_PACKET_SIGNED) != 0) return 0;
+ if ((packet->flags & RS_PACKET_SIGNED) != 0) return 0;
- if ((packet->flags & NR_PACKET_ENCODED) == 0) {
+ if ((packet->flags & RS_PACKET_ENCODED) == 0) {
int rcode;
rcode = nr_packet_encode(packet, original);
#ifdef PW_MESSAGE_AUTHENTICATOR
if (!original) {
nr_debug_error("Original packet is required to create the Message-Authenticator");
- return -NR_ERR_REQUEST_REQUIRED;
+ return -RSE_REQUEST_REQUIRED;
}
#endif
*/
if (!((packet->code == PW_ACCESS_REQUEST) ||
(packet->code == PW_STATUS_SERVER))) {
- NR_MD5_CTX ctx;
+ RS_MD5_CTX ctx;
- nr_MD5Init(&ctx);
- nr_MD5Update(&ctx, packet->data, packet->length);
- nr_MD5Update(&ctx, packet->secret, packet->sizeof_secret);
- nr_MD5Final(packet->vector, &ctx);
+ RS_MD5Init(&ctx);
+ RS_MD5Update(&ctx, packet->data, packet->length);
+ RS_MD5Update(&ctx, packet->secret, packet->sizeof_secret);
+ RS_MD5Final(packet->vector, &ctx);
}
memcpy(packet->data + 4, packet->vector, sizeof(packet->vector));
packet->attempts = 0;
- packet->flags |= NR_PACKET_SIGNED;
+ packet->flags |= RS_PACKET_SIGNED;
return 0;
}
const RADIUS_PACKET *original)
{
if ((packet->code == 0) ||
- (packet->code > NR_MAX_PACKET_CODE) ||
- (original && (original->code > NR_MAX_PACKET_CODE))) {
+ (packet->code > RS_MAX_PACKET_CODE) ||
+ (original && (original->code > RS_MAX_PACKET_CODE))) {
nr_debug_error("Cannot send unknown packet code");
- return -NR_ERR_REQUEST_CODE_INVALID;
+ return -RSE_INVALID_REQUEST_CODE;
}
if (!nr_packet_codes[packet->code]) {
nr_debug_error("Cannot handle packet code %u",
packet->code);
- return -NR_ERR_REQUEST_CODE_INVALID;
+ return -RSE_INVALID_REQUEST_CODE;
}
#ifdef NR_NO_MALLOC
if (!packet->data) {
nr_debug_error("No place to put packet");
- return -NR_ERR_NO_PACKET_DATA;
+ return -RSE_NO_PACKET_DATA;
}
#endif
if (packet->sizeof_data < 20) {
nr_debug_error("The buffer is too small to encode the packet");
- return -NR_ERR_PACKET_TOO_SMALL;
+ return -RSE_PACKET_TOO_SMALL;
}
/*
if ((allowed_responses[original->code] & mask) == 0) {
nr_debug_error("Cannot encode response %u to packet %u",
packet->code, original->code);
- return -NR_ERR_RESPONSE_CODE_INVALID;
+ return -RSE_INVALID_RESPONSE_CODE;
}
packet->id = original->id;
} else if (allowed_responses[packet->code] == 0) {
nr_debug_error("Cannot encode response %u without original",
packet->code);
- return -NR_ERR_REQUEST_REQUIRED;
+ return -RSE_REQUEST_REQUIRED;
}
return 0;
static void encode_header(RADIUS_PACKET *packet)
{
- if ((packet->flags & NR_PACKET_HEADER) != 0) return;
+ if ((packet->flags & RS_PACKET_HEADER) != 0) return;
memset(packet->data, 0, 20);
packet->data[0] = packet->code;
memcpy(packet->data + 4, packet->vector, sizeof(packet->vector));
- packet->flags |= NR_PACKET_HEADER;
+ packet->flags |= RS_PACKET_HEADER;
}
int nr_packet_encode(RADIUS_PACKET *packet, const RADIUS_PACKET *original)
const VALUE_PAIR *vp;
uint8_t *data, *end;
- if ((packet->flags & NR_PACKET_ENCODED) != 0) return 0;
+ if ((packet->flags & RS_PACKET_ENCODED) != 0) return 0;
rcode = can_encode_packet(packet, original);
if (rcode < 0) return rcode;
packet->data[2] = (packet->length >> 8) & 0xff;
packet->data[3] = packet->length & 0xff;
- packet->flags |= NR_PACKET_ENCODED;
+ packet->flags |= RS_PACKET_ENCODED;
return packet->length;
}
uint8_t *attr;
const uint8_t *end;
- if (!packet || !callback) return -NR_ERR_INVALID_ARG;
+ if (!packet || !callback) return -RSE_INVAL;
rcode = nr_packet_ok(packet);
if (rcode < 0) return rcode;
break;
default:
- return -NR_ERR_INTERNAL_FAILURE;
+ return -RSE_INTERNAL;
}
switch (dv_length) {
break;
default:
- return -NR_ERR_INTERNAL_FAILURE;
+ return -RSE_INTERNAL;
}
rcode = do_callback(ctx, callback,
{
int rcode;
- if ((code < 0) || (code > NR_MAX_PACKET_CODE)) {
- return -NR_ERR_REQUEST_CODE_INVALID;
+ if ((code < 0) || (code > RS_MAX_PACKET_CODE)) {
+ return -RSE_INVALID_REQUEST_CODE;
}
- if (!data || (sizeof_data < 20)) return -NR_ERR_INVALID_ARG;
-
- if (!secret || !*secret) return -NR_ERR_INVALID_ARG;
+ if (!data || (sizeof_data < 20)) return -RSE_INVAL;
memset(packet, 0, sizeof(*packet));
packet->secret = secret;
- packet->sizeof_secret = strlen(secret);
+ packet->sizeof_secret = secret ? strlen(secret) : 0;
packet->code = code;
packet->id = 0;
packet->data = data;
end = attr + packet->sizeof_data;
while (left > 253) {
- if ((attr + 255) > end) return -NR_ERR_ATTR_OVERFLOW;
+ if ((attr + 255) > end) return -RSE_ATTR_OVERFLOW;
attr[0] = PW_EAP_MESSAGE;
attr[1] = 255;
left -= 253;
}
- if ((attr + (2 + left)) > end) return -NR_ERR_ATTR_OVERFLOW;
+ if ((attr + (2 + left)) > end) return -RSE_ATTR_OVERFLOW;
attr[0] = PW_EAP_MESSAGE;
attr[1] = 2 + left;
const VALUE_PAIR *vp;
if (!packet || !da || !data) {
- return -NR_ERR_INVALID_ARG;
+ return -RSE_INVAL;
}
if (data_len == 0) {
- if (da->type != NR_TYPE_STRING) return -NR_ERR_ATTR_TOO_SMALL;
+ if (da->type != RS_TYPE_STRING) return -RSE_ATTR_TOO_SMALL;
data_len = strlen(data);
}
- packet->flags |= NR_PACKET_ENCODED; /* ignore any VPs */
+ packet->flags |= RS_PACKET_ENCODED; /* ignore any VPs */
attr = packet->data + packet->length;
end = attr + packet->sizeof_data;
if ((attr + 2 + data_len) > end) {
- return -NR_ERR_ATTR_OVERFLOW;
+ return -RSE_ATTR_OVERFLOW;
}
if ((da->flags.length != 0) &&
(data_len != da->flags.length)) {
- return -NR_ERR_ATTR_VALUE_MALFORMED;
+ return -RSE_ATTR_VALUE_MALFORMED;
}
#ifdef PW_EAP_MESSAGE
}
#endif
- if (data_len > 253) return -NR_ERR_ATTR_TOO_LARGE;
+ if (data_len > 253) return -RSE_ATTR_TOO_LARGE;
vp = nr_vp_init(&my_vp, da);
rcode = nr_vp_set_data(&my_vp, data, data_len);
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