Finish up Chiron interaction with real devices.. Nothing is done with received alarms so far though
This commit is contained in:
Wilco Baan Hofman
parent
3925f4f244
commit
5f2a251b68
2 changed files with 331 additions and 222 deletions
56
chiron.idl
56
chiron.idl
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@ -3,16 +3,17 @@ interface chiron
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const int MD5_HASH_LEN = 0x10;
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const int CHALLENGE_LEN = 0x9;
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const int MSG_HDR_LEN = 0x4;
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const int ALTMSG_HDR_LEN = 0x8;
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typedef [public,enum8bit] enum {
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CHIRON_ACCOUNT = 0x41, /* 'A' */
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CHIRON_CHALLENGE = 0x43, /* 'C' */
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CHIRON_RESPONSE = 0x52, /* 'R' */
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CHIRON_HANDSHAKE1 = 0x4B, /* 'K' */
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CHIRON_HANDSHAKE2 = 0x48, /* 'H' = Set new key */
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CHIRON_HANDSHAKE2 = 0x48, /* 'H' = Set new key?? */
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CHIRON_ACK = 0x55, /* 'U' */
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CHIRON_TRANSPARENT = 0x54, /* 'T' */
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CHIRON_UNKNOWN_IN = 0x53 /* 'S' */
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CHIRON_SIGNAL = 0x53 /* 'S' */
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} chiron_msg_type;
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typedef [public,enum8bit] enum {
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@ -48,6 +49,7 @@ interface chiron
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uint8 payload[length - MD5_HASH_LEN];
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} chiron_msg_response;
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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uint8 length;
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uint8 data[length];
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@ -55,7 +57,7 @@ interface chiron
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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uint8 length;
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uint8 data[length];
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uint8 challenge[length];
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} chiron_msg_handshake2;
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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@ -66,6 +68,11 @@ interface chiron
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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uint8 length;
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uint8 data[length+6];
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} chiron_msg_signal;
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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uint8 length;
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uint8 data[length];
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} chiron_msg_unknown;
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typedef [nodiscriminant,public,flag(LIBNDR_FLAG_NOALIGN)] union {
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@ -75,10 +82,42 @@ interface chiron
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[case(CHIRON_HANDSHAKE1)] chiron_msg_handshake1 handshake1;
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[case(CHIRON_HANDSHAKE2)] chiron_msg_handshake2 handshake2;
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[case(CHIRON_ACK)] chiron_msg_ack ack;
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[case(CHIRON_UNKNOWN_IN)] chiron_msg_unknown unknown_in;
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[case(CHIRON_SIGNAL)] chiron_msg_signal signal;
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[default] chiron_msg_unknown unknown;
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} chiron_msg_union;
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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chiron_msg_type msg_type;
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uint8 seq;
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uint8 flags;
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[switch_is(msg_type)] chiron_msg_union msg;
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} chiron_message;
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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uint8 length;
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uint8 challenge[length];
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} chiron_altmsg_challenge;
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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chiron_msg_response response;
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uint8 floof[3];
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} chiron_altmsg_response;
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typedef [nodiscriminant,public,flag(LIBNDR_FLAG_NOALIGN)] union {
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[case(CHIRON_ACCOUNT)] chiron_msg_account account;
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[case(CHIRON_CHALLENGE)] chiron_altmsg_challenge challenge;
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[case(CHIRON_RESPONSE)] chiron_altmsg_response response;
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[case(CHIRON_HANDSHAKE1)] chiron_msg_handshake1 handshake1;
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[case(CHIRON_HANDSHAKE2)] chiron_msg_handshake2 handshake2;
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[case(CHIRON_ACK)] chiron_msg_ack ack;
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[case(CHIRON_SIGNAL)] chiron_msg_signal signal;
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[default] chiron_msg_unknown unknown;
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} chiron_altmsg_union;
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// Alternative format
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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uint8 something01; // seen only 01
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@ -88,14 +127,7 @@ interface chiron
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uint8 something00; //seen only 00
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uint8 length;
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chiron_msg_type msg_type;
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[switch_is(msg_type)] chiron_msg_union msg;
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[switch_is(msg_type)] chiron_altmsg_union msg;
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} chiron_alt_message;
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typedef [public,flag(LIBNDR_FLAG_NOALIGN)] struct {
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chiron_msg_type msg_type;
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uint8 seq;
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uint8 flags;
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[switch_is(msg_type)] chiron_msg_union msg;
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} chiron_message;
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}
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497
chirond.c
497
chirond.c
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@ -73,8 +73,8 @@ struct chiron_context {
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struct sockaddr *clientaddr;
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char *account_code;
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char device_id[3];
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uint8_t md5_last_out[0x10];
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uint8_t rc4key[0x10];
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uint8_t md5_last_out[MD5_HASH_LEN];
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uint8_t rc4key[MD5_HASH_LEN];
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bool alt_format;
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uint8_t seq;
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uint8_t flags;
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@ -162,6 +162,57 @@ STATUS send_chiron_msg_handshake1(struct chiron_context *ctx, struct chiron_msg_
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talloc_free(out);
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return ST_OK;
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}
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STATUS send_chiron_altmsg_handshake2(struct chiron_context *ctx, struct chiron_msg_response *response) {
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struct chiron_alt_message *alt = talloc_zero(response, struct chiron_alt_message);
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DEBUG(0, "Sending out an alt handshake2");
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alt = talloc_zero(response, struct chiron_alt_message);
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NO_MEM_RETURN(alt);
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alt->msg_type = CHIRON_HANDSHAKE2;
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alt->seq = ctx->seq;
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alt->something01 = 0x01;
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alt->otherthing01 = 0x01;
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alt->someflag = ctx->flags;
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alt->something00 = 0x00;
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alt->length = 0x0B;
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struct chiron_msg_handshake2 *handshake2 = &alt->msg.handshake2;
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//int hdrlen = ALTMSG_HDR_LEN;
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handshake2->length = CHALLENGE_LEN;
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handshake2->challenge = talloc_zero_array(alt, uint8_t, CHALLENGE_LEN);
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NO_MEM_RETURN(handshake2->challenge);
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handshake2->challenge[0] = 0x07;
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handshake2->challenge[1] = 0x2f;
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handshake2->challenge[2] = 0xb9;
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handshake2->challenge[3] = 0x81;
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handshake2->challenge[4] = 0x3d;
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handshake2->challenge[5] = 0x0f;
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handshake2->challenge[6] = 0x14;
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handshake2->challenge[7] = 0xac;
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handshake2->challenge[8] = 0x59;
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DATA_BLOB raw_out;
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enum ndr_err_code ndr_err = ndr_push_struct_blob(&raw_out, alt, alt, (ndr_push_flags_fn_t)ndr_push_chiron_alt_message);
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if (ndr_err != NDR_ERR_SUCCESS) {
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DEBUG(0, "Error writing NDR data blob.");
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return ST_WRITE_ERROR;
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}
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/* Update the rc4 crypto key, which is seq+challenge */
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uint8_t *md5input = talloc_array(response, uint8_t, CHALLENGE_LEN + 1);
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NO_MEM_RETURN(md5input);
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int count = write(ctx->clientfd, raw_out.data, raw_out.length);
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if (count < 0) {
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DEBUG(0, "Error during write of %d bytes to fd %d: %s", raw_out.length, ctx->clientfd, strerror(errno));
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} else if ((unsigned)count < raw_out.length) {
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DEBUG(0, "Short write during writing out the raw_data with length %d", raw_out.length);
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}
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talloc_free(alt);
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return ST_OK;
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}
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STATUS handle_chiron_msg_response(struct chiron_context *ctx, struct chiron_msg_response *response) {
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DATA_BLOB crypted, decrypted;
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@ -176,48 +227,130 @@ STATUS handle_chiron_msg_response(struct chiron_context *ctx, struct chiron_msg_
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/* Copy packet to crypted data blob */
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crypted.length = response->length - MD5_HASH_LEN;
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crypted.data = talloc_memdup(response, response->payload, crypted.length);
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NO_MEM_RETURN(crypted.data);
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if (crypted.length > 0) {
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crypted.data = talloc_memdup(response, response->payload, crypted.length);
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NO_MEM_RETURN(crypted.data);
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decrypted.data = talloc_array(response, uint8_t, crypted.length);
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NO_MEM_RETURN(decrypted.data);
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decrypted.length = crypted.length;
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decrypted.data = talloc_array(response, uint8_t, crypted.length);
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NO_MEM_RETURN(decrypted.data);
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decrypted.length = crypted.length;
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arcfour_set_key(&rc4, MD5_HASH_LEN, ctx->rc4key);
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arcfour_crypt(&rc4, crypted.length, decrypted.data, crypted.data);
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hexdump("Decrypted", decrypted.data, decrypted.length);
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arcfour_set_key(&rc4, MD5_HASH_LEN, ctx->rc4key);
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arcfour_crypt(&rc4, crypted.length, decrypted.data, crypted.data);
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hexdump("Decrypted", decrypted.data, decrypted.length);
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/* The message starts with 3 bytes device_id, and then the TLV starts */
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memcpy(ctx->device_id, decrypted.data, 3);
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decrypted.data += 3;
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decrypted.length -= 3;
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/* The message starts with 3 bytes device_id, and then the TLV starts */
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memcpy(ctx->device_id, decrypted.data, 3);
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decrypted.data += 3;
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decrypted.length -= 3;
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tlv_to_linked_list(response, decrypted, &element);
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while (element != NULL) {
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DEBUG(1, "Type: %x, Length: %d", element->type, element->length);
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hexdump("Data", element->data_ptr, element->length);
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element = element->next;
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tlv_to_linked_list(response, decrypted, &element);
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while (element != NULL) {
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DEBUG(1, "Type: %x, Length: %d", element->type, element->length);
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hexdump("Data", element->data_ptr, element->length);
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element = element->next;
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}
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send_chiron_msg_handshake1(ctx, response);
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} else {
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send_chiron_altmsg_handshake2(ctx, response);
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}
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send_chiron_msg_handshake1(ctx, response);
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return ST_OK;
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}
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STATUS send_chiron_msg_challenge(struct chiron_context *ctx, struct chiron_msg_account *account) {
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struct chiron_message *out = talloc_zero(account, struct chiron_message);
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STATUS send_chiron_altmsg_challenge(struct chiron_context *ctx, struct chiron_msg_account *account) {
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struct chiron_alt_message *alt;
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struct md5_ctx md5;
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uint8_t *md5input;
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enum ndr_err_code ndr_err;
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DATA_BLOB raw_out;
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struct chiron_altmsg_challenge *challenge;
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int hdrlen;
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DEBUG(0, "Sending out an alt challenge");
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alt = talloc_zero(account, struct chiron_alt_message);
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NO_MEM_RETURN(alt);
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alt->msg_type = CHIRON_CHALLENGE;
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alt->seq = ctx->seq;
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alt->something01 = 0x01;
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alt->otherthing01 = 0x01;
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alt->someflag = ctx->flags;
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alt->something00 = 0x00;
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alt->length = 0x0B;
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challenge = &alt->msg.challenge;
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hdrlen = ALTMSG_HDR_LEN;
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/* FIXME This should be random, but that is annoying for testing purposes */
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challenge->length = CHALLENGE_LEN;
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challenge->challenge = talloc_zero_array(alt, uint8_t, CHALLENGE_LEN);
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NO_MEM_RETURN(challenge->challenge);
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challenge->challenge[0] = 0x60;
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challenge->challenge[1] = 0x19;
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challenge->challenge[2] = 0x12;
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challenge->challenge[3] = 0xa8;
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challenge->challenge[4] = 0x91;
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challenge->challenge[5] = 0x45;
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challenge->challenge[6] = 0x89;
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challenge->challenge[7] = 0x8f;
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challenge->challenge[8] = 0x37;
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ndr_err = ndr_push_struct_blob(&raw_out, alt, alt, (ndr_push_flags_fn_t)ndr_push_chiron_alt_message);
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if (ndr_err != NDR_ERR_SUCCESS) {
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DEBUG(0, "Error writing NDR data blob.");
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return ST_WRITE_ERROR;
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}
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/* Update the rc4 crypto key, which is seq+challenge */
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md5input = talloc_array(account, uint8_t, CHALLENGE_LEN + 1);
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NO_MEM_RETURN(md5input);
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md5input[0] = ctx->seq;
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memcpy(&md5input[1], &raw_out.data[hdrlen], CHALLENGE_LEN);
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md5_init(&md5);
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md5_update(&md5, CHALLENGE_LEN + 1, md5input);
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md5_digest(&md5, MD5_HASH_LEN, ctx->rc4key);
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/* Update the md5 check for the next message (last 9 bytes with the seq byte appended). */
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memcpy(md5input, &raw_out.data[hdrlen], CHALLENGE_LEN);
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md5input[CHALLENGE_LEN] = ctx->seq;
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md5_init(&md5);
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md5_update(&md5, CHALLENGE_LEN + 1, md5input);
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md5_digest(&md5, MD5_HASH_LEN, ctx->md5_last_out);
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int count = write(ctx->clientfd, raw_out.data, raw_out.length);
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if (count < 0) {
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DEBUG(0, "Error during write of %d bytes to fd %d: %s", raw_out.length, ctx->clientfd, strerror(errno));
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} else if ((unsigned)count < raw_out.length) {
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DEBUG(0, "Short write during writing out the raw_data with length %d", raw_out.length);
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}
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/* Update the md5 check for the next message (last 9 bytes with the seq byte appended). */
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talloc_free(alt);
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return ST_OK;
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}
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STATUS send_chiron_msg_challenge(struct chiron_context *ctx, struct chiron_msg_account *account) {
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struct chiron_message *out;
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struct md5_ctx md5;
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uint8_t *md5input;
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enum ndr_err_code ndr_err;
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DATA_BLOB raw_out;
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struct chiron_msg_challenge *challenge;
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int hdrlen;
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NO_MEM_RETURN(out);
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DEBUG(0, "Sending out a challenge");
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out = talloc_zero(account, struct chiron_message);
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NO_MEM_RETURN(out);
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out->msg_type = CHIRON_CHALLENGE;
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out->seq = ctx->seq;
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out->flags = ctx->flags;
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challenge = &out->msg.challenge;
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hdrlen = MSG_HDR_LEN;
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/* Make an md5 hash of the account code with the seq byte appended. */
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md5input = talloc_array(account, uint8_t, account->length + 1);
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NO_MEM_RETURN(md5input);
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@ -225,53 +358,28 @@ STATUS send_chiron_msg_challenge(struct chiron_context *ctx, struct chiron_msg_a
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memcpy(md5input, account->account_code, account->length);
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md5input[account->length] = ctx->seq;
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out->msg.challenge.md5_check = talloc_array(out, uint8_t, MD5_HASH_LEN);
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NO_MEM_RETURN(out->msg.challenge.md5_check);
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challenge->md5_check = talloc_array(account, uint8_t, MD5_HASH_LEN);
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NO_MEM_RETURN(challenge->md5_check);
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md5_init(&md5);
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md5_update(&md5, account->length + 1, md5input);
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md5_digest(&md5, MD5_HASH_LEN, out->msg.challenge.md5_check);
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md5_digest(&md5, MD5_HASH_LEN, challenge->md5_check);
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talloc_free(md5input);
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/* FIXME This should be random, but that is annoying for testing purposes */
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out->msg.challenge.length = MD5_HASH_LEN + CHALLENGE_LEN;
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out->msg.challenge.challenge = talloc_zero_array(out, uint8_t, CHALLENGE_LEN);
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NO_MEM_RETURN(out->msg.challenge.challenge);
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#if 0
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out->msg.challenge.challenge[0] = 0xd0;
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out->msg.challenge.challenge[1] = 0x8b;
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out->msg.challenge.challenge[2] = 0x29;
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out->msg.challenge.challenge[3] = 0xd3;
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out->msg.challenge.challenge[4] = 0x7c;
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out->msg.challenge.challenge[5] = 0xfd;
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out->msg.challenge.challenge[6] = 0xb5;
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out->msg.challenge.challenge[7] = 0xc6;
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out->msg.challenge.challenge[8] = 0x1e;
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#endif
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//0x04, 0x0d, 0x49, 0xc1, 0x3d, 0xc8, 0x1f, 0x5f, 0x47
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#if 0
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out->msg.challenge.challenge[0] = 0x04;
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out->msg.challenge.challenge[1] = 0x0d;
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out->msg.challenge.challenge[2] = 0x49;
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out->msg.challenge.challenge[3] = 0xc1;
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out->msg.challenge.challenge[4] = 0x3d;
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out->msg.challenge.challenge[5] = 0xc8;
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out->msg.challenge.challenge[6] = 0x1f;
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out->msg.challenge.challenge[7] = 0x5f;
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out->msg.challenge.challenge[8] = 0x47;
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#endif
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// 0x60, 0x19, 0x12, 0xa8, 0x91, 0x45, 0x89, 0x8f,
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// 0x37 };
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out->msg.challenge.challenge[0] = 0x60;
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out->msg.challenge.challenge[1] = 0x19;
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out->msg.challenge.challenge[2] = 0x12;
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out->msg.challenge.challenge[3] = 0xa8;
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out->msg.challenge.challenge[4] = 0x91;
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out->msg.challenge.challenge[5] = 0x45;
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out->msg.challenge.challenge[6] = 0x89;
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out->msg.challenge.challenge[7] = 0x8f;
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out->msg.challenge.challenge[8] = 0x37;
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challenge->length = MD5_HASH_LEN + CHALLENGE_LEN;
|
||||
challenge->challenge = talloc_zero_array(account, uint8_t, CHALLENGE_LEN);
|
||||
NO_MEM_RETURN(challenge->challenge);
|
||||
challenge->challenge[0] = 0xd0;
|
||||
challenge->challenge[1] = 0x8b;
|
||||
challenge->challenge[2] = 0x29;
|
||||
challenge->challenge[3] = 0xd3;
|
||||
challenge->challenge[4] = 0x7c;
|
||||
challenge->challenge[5] = 0xfd;
|
||||
challenge->challenge[6] = 0xb5;
|
||||
challenge->challenge[7] = 0xc6;
|
||||
challenge->challenge[8] = 0x1e;
|
||||
|
||||
ndr_err = ndr_push_struct_blob(&raw_out, out, out, (ndr_push_flags_fn_t)ndr_push_chiron_message);
|
||||
if (ndr_err != NDR_ERR_SUCCESS) {
|
||||
|
|
@ -279,13 +387,11 @@ STATUS send_chiron_msg_challenge(struct chiron_context *ctx, struct chiron_msg_a
|
|||
return ST_WRITE_ERROR;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* Update the md5 check for the next message (last 9 bytes with the seq byte appended). */
|
||||
md5input = talloc_array(account, uint8_t, CHALLENGE_LEN + 1);
|
||||
NO_MEM_RETURN(md5input);
|
||||
|
||||
memcpy(md5input, &raw_out.data[MSG_HDR_LEN + MD5_HASH_LEN], CHALLENGE_LEN);
|
||||
memcpy(md5input, &raw_out.data[hdrlen + MD5_HASH_LEN], CHALLENGE_LEN);
|
||||
md5input[CHALLENGE_LEN] = ctx->seq;
|
||||
|
||||
|
||||
|
|
@ -295,19 +401,24 @@ STATUS send_chiron_msg_challenge(struct chiron_context *ctx, struct chiron_msg_a
|
|||
|
||||
/* Update the rc4 crypto key, which is seq+challenge */
|
||||
md5input[0] = ctx->seq;
|
||||
memcpy(&md5input[1], &raw_out.data[MSG_HDR_LEN + MD5_HASH_LEN], CHALLENGE_LEN);
|
||||
memcpy(&md5input[1], &raw_out.data[hdrlen + MD5_HASH_LEN], CHALLENGE_LEN);
|
||||
|
||||
md5_init(&md5);
|
||||
md5_update(&md5, CHALLENGE_LEN + 1, md5input);
|
||||
md5_digest(&md5, MD5_HASH_LEN, ctx->rc4key);
|
||||
|
||||
DEBUG(0, "The expected md5sum for the next entry is %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
|
||||
ctx->md5_last_out[0], ctx->md5_last_out[1], ctx->md5_last_out[2], ctx->md5_last_out[3],
|
||||
ctx->md5_last_out[4], ctx->md5_last_out[5], ctx->md5_last_out[6], ctx->md5_last_out[9],
|
||||
ctx->md5_last_out[8], ctx->md5_last_out[9], ctx->md5_last_out[10], ctx->md5_last_out[11],
|
||||
ctx->md5_last_out[12], ctx->md5_last_out[13], ctx->md5_last_out[14], ctx->md5_last_out[15]);
|
||||
ctx->md5_last_out[0], ctx->md5_last_out[1], ctx->md5_last_out[2], ctx->md5_last_out[3],
|
||||
ctx->md5_last_out[4], ctx->md5_last_out[5], ctx->md5_last_out[6], ctx->md5_last_out[9],
|
||||
ctx->md5_last_out[8], ctx->md5_last_out[9], ctx->md5_last_out[10], ctx->md5_last_out[11],
|
||||
ctx->md5_last_out[12], ctx->md5_last_out[13], ctx->md5_last_out[14], ctx->md5_last_out[15]);
|
||||
|
||||
write(ctx->clientfd, raw_out.data, raw_out.length);
|
||||
int count = write(ctx->clientfd, raw_out.data, raw_out.length);
|
||||
if (count < 0) {
|
||||
DEBUG(0, "Error during write of %d bytes to fd %d: %s", raw_out.length, ctx->clientfd, strerror(errno));
|
||||
} else if ((unsigned)count < raw_out.length) {
|
||||
DEBUG(0, "Short write during writing out the raw_data with length %d", raw_out.length);
|
||||
}
|
||||
talloc_free(out);
|
||||
return ST_OK;
|
||||
}
|
||||
|
|
@ -317,19 +428,53 @@ STATUS handle_chiron_msg_account(struct chiron_context *ctx, struct chiron_msg_a
|
|||
ctx->account_code = talloc_memdup(account, account->account_code, account->length);
|
||||
NO_MEM_RETURN(ctx->account_code);
|
||||
|
||||
send_chiron_msg_challenge(ctx, account);
|
||||
return ST_OK;
|
||||
if (!ctx->alt_format) {
|
||||
return send_chiron_msg_challenge(ctx, account);
|
||||
} else {
|
||||
return send_chiron_altmsg_challenge(ctx, account);
|
||||
}
|
||||
}
|
||||
|
||||
STATUS handle_chiron_msg_unknown(struct chiron_context *ctx, struct chiron_msg_unknown *unknown) {
|
||||
STATUS send_chiron_altmsg_ack(struct chiron_context *ctx, struct chiron_msg_signal *signal) {
|
||||
struct chiron_alt_message *alt;
|
||||
enum ndr_err_code ndr_err;
|
||||
DATA_BLOB raw_out;
|
||||
|
||||
DEBUG(0, "Sending out an alt ack");
|
||||
alt = talloc_zero(signal, struct chiron_alt_message);
|
||||
NO_MEM_RETURN(alt);
|
||||
alt->msg_type = CHIRON_ACCOUNT;
|
||||
alt->seq = ctx->seq;
|
||||
alt->something01 = 0x01;
|
||||
alt->otherthing01 = 0x01;
|
||||
alt->someflag = ctx->flags;
|
||||
alt->something00 = 0x00;
|
||||
alt->length = 0x02;
|
||||
alt->msg.account.length = 0;
|
||||
|
||||
ndr_err = ndr_push_struct_blob(&raw_out, alt, alt, (ndr_push_flags_fn_t)ndr_push_chiron_alt_message);
|
||||
if (ndr_err != NDR_ERR_SUCCESS) {
|
||||
DEBUG(0, "Error writing NDR data blob.");
|
||||
return ST_WRITE_ERROR;
|
||||
}
|
||||
int count = write(ctx->clientfd, raw_out.data, raw_out.length);
|
||||
if (count < 0) {
|
||||
DEBUG(0, "Error during write of %d bytes to fd %d: %s", raw_out.length, ctx->clientfd, strerror(errno));
|
||||
} else if ((unsigned)count < raw_out.length) {
|
||||
DEBUG(0, "Short write during writing out the raw_data with length %d", raw_out.length);
|
||||
}
|
||||
talloc_free(alt);
|
||||
return ST_OK;
|
||||
}
|
||||
STATUS handle_chiron_msg_signal(struct chiron_context *ctx, struct chiron_msg_signal *signal) {
|
||||
DATA_BLOB crypted, decrypted;
|
||||
struct arcfour_ctx rc4;
|
||||
|
||||
/* Copy packet to crypted data blob */
|
||||
crypted.length = unknown->length+6;
|
||||
crypted.data = talloc_memdup(unknown, unknown->data, crypted.length);
|
||||
crypted.length = signal->length+6;
|
||||
crypted.data = talloc_memdup(signal, signal->data, crypted.length);
|
||||
NO_MEM_RETURN(crypted.data);
|
||||
decrypted.data = talloc_array(unknown, uint8_t, crypted.length);
|
||||
decrypted.data = talloc_array(signal, uint8_t, crypted.length);
|
||||
NO_MEM_RETURN(decrypted.data);
|
||||
decrypted.length = crypted.length;
|
||||
|
||||
|
|
@ -337,7 +482,7 @@ STATUS handle_chiron_msg_unknown(struct chiron_context *ctx, struct chiron_msg_u
|
|||
arcfour_crypt(&rc4, crypted.length, decrypted.data, crypted.data);
|
||||
hexdump("Decrypted", decrypted.data, decrypted.length);
|
||||
|
||||
return ST_OK;
|
||||
return send_chiron_altmsg_ack(ctx, signal);
|
||||
}
|
||||
|
||||
STATUS handle_message(struct chiron_context *ctx, DATA_BLOB data) {
|
||||
|
|
@ -350,27 +495,29 @@ STATUS handle_message(struct chiron_context *ctx, DATA_BLOB data) {
|
|||
/* Parse the packet */
|
||||
enum ndr_err_code ndr_err;
|
||||
if (data.length > 0 && data.data[0] != 1) {
|
||||
ctx->alt_format = 0;
|
||||
ndr_err = ndr_pull_struct_blob_all(&data, msg, msg, (ndr_pull_flags_fn_t)ndr_pull_chiron_message);
|
||||
ctx->seq = msg->seq;
|
||||
ctx->flags = msg->flags;
|
||||
} else {
|
||||
ndr_err = ndr_pull_struct_blob_all(&data, alt_msg, alt_msg, (ndr_pull_flags_fn_t)ndr_pull_chiron_alt_message);
|
||||
ctx->alt_format = 1;
|
||||
ctx->seq = alt_msg->seq;
|
||||
ctx->flags = 0;
|
||||
ndr_err = ndr_pull_struct_blob_all(&data, alt_msg, alt_msg, (ndr_pull_flags_fn_t)ndr_pull_chiron_alt_message);
|
||||
}
|
||||
|
||||
if (ndr_err != NDR_ERR_SUCCESS) {
|
||||
DEBUG(0, "Could not parse this message");
|
||||
hexdump("Message bytes", data.data, data.length);
|
||||
return ST_PARSE_ERROR;
|
||||
}
|
||||
enum chiron_msg_type msg_type;
|
||||
if (ctx->alt_format) {
|
||||
DEBUG(0, "%s", ndr_print_struct_string(msg,(ndr_print_fn_t)ndr_print_chiron_alt_message, "chiron alt message", alt_msg));
|
||||
ctx->seq = alt_msg->seq;
|
||||
ctx->flags = 0;
|
||||
msg_type = alt_msg->msg_type;
|
||||
DEBUG(0, "%s", ndr_print_struct_string(msg,(ndr_print_fn_t)ndr_print_chiron_alt_message, "chiron alt message", alt_msg));
|
||||
} else {
|
||||
DEBUG(0, "%s", ndr_print_struct_string(msg,(ndr_print_fn_t)ndr_print_chiron_message, "chiron message", msg));
|
||||
ctx->seq = msg->seq;
|
||||
ctx->flags = msg->flags;
|
||||
msg_type = msg->msg_type;
|
||||
DEBUG(0, "%s", ndr_print_struct_string(msg,(ndr_print_fn_t)ndr_print_chiron_message, "chiron message", msg));
|
||||
}
|
||||
STATUS status;
|
||||
switch (msg_type) {
|
||||
|
|
@ -381,16 +528,18 @@ STATUS handle_message(struct chiron_context *ctx, DATA_BLOB data) {
|
|||
} else {
|
||||
account = talloc_memdup(msg, &msg->msg.account, sizeof(struct chiron_msg_account));
|
||||
}
|
||||
DEBUG(0, "Got chiron_msg_account");
|
||||
status = handle_chiron_msg_account(ctx, account);
|
||||
break;
|
||||
}
|
||||
case CHIRON_RESPONSE: {
|
||||
struct chiron_msg_response *response;
|
||||
if (ctx->alt_format) {
|
||||
response = talloc_memdup(alt_msg, &alt_msg->msg.response, sizeof(struct chiron_msg_response));
|
||||
response = talloc_memdup(alt_msg, &alt_msg->msg.response.response, sizeof(struct chiron_msg_response));
|
||||
} else {
|
||||
response = talloc_memdup(msg, &msg->msg.response, sizeof(struct chiron_msg_response));
|
||||
}
|
||||
DEBUG(0, "Got chiron_msg_response");
|
||||
status = handle_chiron_msg_response(ctx, response);
|
||||
break;
|
||||
}
|
||||
|
|
@ -401,17 +550,19 @@ STATUS handle_message(struct chiron_context *ctx, DATA_BLOB data) {
|
|||
} else {
|
||||
ack = talloc_memdup(msg, &msg->msg.ack, sizeof(struct chiron_msg_ack));
|
||||
}
|
||||
DEBUG(0, "Got chiron_msg_ack");
|
||||
status = handle_chiron_msg_ack(ctx, ack);
|
||||
break;
|
||||
}
|
||||
case CHIRON_UNKNOWN_IN: {
|
||||
struct chiron_msg_unknown *unknown;
|
||||
case CHIRON_SIGNAL: {
|
||||
struct chiron_msg_signal *signal;
|
||||
if (ctx->alt_format) {
|
||||
unknown = talloc_memdup(alt_msg, &alt_msg->msg.unknown_in, sizeof(struct chiron_msg_unknown));
|
||||
signal = talloc_memdup(alt_msg, &alt_msg->msg.signal, sizeof(struct chiron_msg_signal));
|
||||
} else {
|
||||
unknown = talloc_memdup(msg, &msg->msg.unknown_in, sizeof(struct chiron_msg_unknown));
|
||||
signal = talloc_memdup(msg, &msg->msg.signal, sizeof(struct chiron_msg_signal));
|
||||
}
|
||||
status = handle_chiron_msg_unknown(ctx, unknown);
|
||||
DEBUG(0, "Got chiron_msg_signal");
|
||||
status = handle_chiron_msg_signal(ctx, signal);
|
||||
|
||||
break;
|
||||
}
|
||||
|
|
@ -436,10 +587,9 @@ STATUS handle_connection(struct chiron_context *ctx) {
|
|||
char buf[1024]; /* Purposefully static length */
|
||||
DATA_BLOB data;
|
||||
|
||||
|
||||
while ((n = read(ctx->clientfd, buf, sizeof(buf)))) {
|
||||
if (n < 0) {
|
||||
DEBUG( 0, "Error when storing packet in buffer!");
|
||||
DEBUG( 0, "Error when reading packet from fd %d: %s!", ctx->clientfd, strerror(errno));
|
||||
return ST_PARSE_ERROR;
|
||||
} else if (n == sizeof(buf)) {
|
||||
DEBUG(0, "Maximum packet size exceeded!");
|
||||
|
|
@ -451,6 +601,11 @@ STATUS handle_connection(struct chiron_context *ctx) {
|
|||
data.data = talloc_memdup(ctx, buf, n);
|
||||
NO_MEM_RETURN(data.data);
|
||||
|
||||
STATUS status = handle_message(ctx, data);
|
||||
if (status != ST_OK) {
|
||||
DEBUG(0,"Got handle_message status %d", status);
|
||||
return status;
|
||||
}
|
||||
talloc_free(data.data);
|
||||
}
|
||||
return ST_OK;
|
||||
|
|
@ -525,16 +680,20 @@ static STATUS listen_server(TALLOC_CTX *mem_ctx, const char *bindaddr, const cha
|
|||
char clientservice[NI_MAXSERV];
|
||||
|
||||
clientfd = accept(sock, (struct sockaddr *)&clientaddr, &clientlen);
|
||||
if (clientfd < 0) {
|
||||
DEBUG(0, "Error on accept: %s", strerror(errno));
|
||||
continue;
|
||||
}
|
||||
getnameinfo((struct sockaddr *)&clientaddr, clientlen,
|
||||
clienthost, sizeof(clienthost),
|
||||
clientservice, sizeof(clientservice),
|
||||
NI_NUMERICHOST | NI_NUMERICSERV);
|
||||
DEBUG(3, "Received connection from %s:%s", clienthost, clientservice);
|
||||
|
||||
//if (fork()) {
|
||||
// continue;
|
||||
//} else {
|
||||
{
|
||||
if (fork()) {
|
||||
close(clientfd);
|
||||
continue;
|
||||
} else {
|
||||
struct chiron_context *client_ctx = talloc_zero(mem_ctx, struct chiron_context);
|
||||
if (client_ctx == NULL) {
|
||||
close(sock);
|
||||
|
|
@ -545,13 +704,15 @@ static STATUS listen_server(TALLOC_CTX *mem_ctx, const char *bindaddr, const cha
|
|||
client_ctx->clientaddr = (struct sockaddr *)&clientaddr;
|
||||
client_ctx->clientfd = clientfd;
|
||||
|
||||
dispatcher(client_ctx);
|
||||
DEBUG(0, "Handling connection for fd %d", clientfd);
|
||||
STATUS status = dispatcher(client_ctx);
|
||||
DEBUG(0, "Shutting down connection for fd %d", clientfd);
|
||||
|
||||
shutdown(client_ctx->clientfd, SHUT_RDWR);
|
||||
close(client_ctx->clientfd);
|
||||
shutdown(clientfd, SHUT_RDWR);
|
||||
close(clientfd);
|
||||
|
||||
talloc_free(client_ctx);
|
||||
exit(0);
|
||||
exit(status);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -559,6 +720,17 @@ static STATUS listen_server(TALLOC_CTX *mem_ctx, const char *bindaddr, const cha
|
|||
close(sock);
|
||||
}
|
||||
|
||||
static void sigchld_handler(int sig)
|
||||
{
|
||||
pid_t p;
|
||||
int status;
|
||||
|
||||
while ((p = waitpid(-1, &status, WNOHANG)) > 0) {
|
||||
DEBUG(0, "Child process %d exited with status %d", p, status);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int main (int argc, char **argv) {
|
||||
TALLOC_CTX *mem_ctx;
|
||||
STATUS rv;
|
||||
|
|
@ -580,114 +752,19 @@ int main (int argc, char **argv) {
|
|||
if (!conf->foreground) {
|
||||
daemonize(conf->pid_file);
|
||||
}
|
||||
struct chiron_context *client_ctx = talloc_zero(mem_ctx, struct chiron_context);
|
||||
NO_MEM_RETURN(client_ctx);
|
||||
client_ctx->clientfd = 1;
|
||||
client_ctx->clientaddr = (struct sockaddr *)talloc_zero(mem_ctx, struct sockaddr_storage);
|
||||
#if 0
|
||||
// Account
|
||||
const uint8_t in_message1[] = { 0x41, 0x01, 0xa8, 0x04, 0x33, 0x35, 0x30, 0x30 };
|
||||
|
||||
// Challenge
|
||||
const uint8_t out_message1[] = { 0x43, 0x01, 0xa8, 0x19, 0x28, 0xd5, 0xdc, 0x57,
|
||||
0x44, 0x77, 0x0d, 0xea, 0xc0, 0x03, 0x56, 0xca,
|
||||
0x42, 0x72, 0x18, 0x30, 0xd0, 0x8b, 0x29, 0xd3,
|
||||
0x7c, 0xfd, 0xb5, 0xc6, 0x1e };
|
||||
|
||||
// Response
|
||||
const uint8_t in_message2[] = { 0x52, 0x01, 0xa8, 0x37, 0x62, 0x7f, 0xd0, 0xb8, 0xbc, 0x70, 0x6a, 0x44, 0x44, 0x21, 0x15, 0xb4, 0x94, 0x20, 0x62, 0x98, 0x7a, 0xe2, 0xde, 0xc2, 0xed, 0x76, 0x84, 0x5f, 0xe6, 0x16, 0x2b, 0x6b, 0xb9, 0x10, 0xa3, 0x6c, 0x14, 0x44, 0x56, 0xca, 0x45, 0xc6, 0xc2, 0xeb, 0xec, 0x1b, 0xd8, 0x7a, 0xa4, 0x4c, 0xc0, 0xb4, 0x88, 0x64, 0x6e, 0x2b, 0xee, 0x11, 0x54 };
|
||||
|
||||
// Handshake
|
||||
const uint8_t out_message2[] = { 0x4b, 0x01, 0xc0, 0x08, 0x5d, 0x4f, 0x2b, 0xce, 0xf1, 0xde, 0x77, 0xa1 };
|
||||
|
||||
// Ack
|
||||
const uint8_t in_message3[] = { 0x55, 0x01, 0xa8, 0x00 };
|
||||
#endif
|
||||
#if 0
|
||||
const uint8_t in_message1[] = { 0x41, 0x02, 0xa8, 0x04, 0x33, 0x35, 0x30, 0x30 };
|
||||
const uint8_t out_message1[] = { 0x43, 0x02, 0xa8, 0x19, 0x08, 0x71, 0x4f, 0xad, 0xed, 0xa3, 0xaf, 0x37, 0x88, 0xcc, 0x00, 0x51, 0xe4, 0xcb, 0xad, 0x7c, 0x04, 0x0d, 0x49, 0xc1, 0x3d, 0xc8, 0x1f, 0x5f, 0x47 };
|
||||
const uint8_t in_message2[] = { 0x52, 0x02, 0xa8, 0x46, 0xc8, 0xa8, 0xb6, 0x50, 0x34, 0xd5, 0x7a, 0x26, 0x90, 0x63, 0x92, 0x56, 0xe5, 0x4d, 0xde, 0xa0, 0x6a, 0x60, 0x19, 0xdc, 0x67, 0xbb, 0xe8, 0x9e, 0x8e, 0xfc, 0x79, 0x55, 0xed, 0x66, 0x26, 0x21, 0x1a, 0x6b, 0x4a, 0x9c, 0x7c, 0xe6, 0x1d, 0x01, 0xab, 0x57, 0xfb, 0xd9, 0x6d, 0x15, 0xbd, 0xe6, 0xe3, 0x94, 0xd6, 0xe7, 0xde, 0xc3, 0x89, 0x52, 0x65, 0x5f, 0x0c, 0x97, 0x4e, 0x4f, 0x6d, 0x9f, 0x5a, 0xb9, 0xc2, 0x12, 0xdd, 0x74 };
|
||||
|
||||
const uint8_t out_message2[] = { 0x4b, 0x02, 0xc0, 0x00 };
|
||||
#endif
|
||||
#if 0
|
||||
const uint8_t in_message1[] = {
|
||||
0x41, 0x03, 0x88, 0x04, 0x33, 0x35, 0x30, 0x30 };
|
||||
const uint8_t out_message1[] = {
|
||||
0x43, 0x03, 0x88, 0x19, 0xaa, 0xd9, 0xaa, 0x5f,
|
||||
0x30, 0x5d, 0x95, 0x0d, 0x96, 0x8d, 0x4e, 0x26,
|
||||
0x02, 0x1a, 0x1a, 0xd8, 0x96, 0xf4, 0xc4, 0x86,
|
||||
0xd9, 0x83, 0x4d, 0x87, 0x48 };
|
||||
const uint8_t in_message2[] = {
|
||||
0x52, 0x03, 0x88, 0x1f, 0xe5, 0x65, 0x48, 0x30,
|
||||
0x56, 0x8e, 0x3b, 0x42, 0x02, 0x6c, 0xcc, 0x9b,
|
||||
0xdc, 0x82, 0xb0, 0x17, 0xba, 0xef, 0x52, 0x61,
|
||||
0xe8, 0xce, 0x7b, 0xcb, 0x57, 0x85, 0x2b, 0x18,
|
||||
0xbf, 0xfa, 0xf1 };
|
||||
const uint8_t out_message2[] = {
|
||||
0x4b, 0x03, 0xc0, 0x00 };
|
||||
#endif
|
||||
// Hello A 3500
|
||||
const uint8_t in_message1[] = {
|
||||
0x01, 0x01, 0x02, 0x00, 0x00, 0x06, 0x41, 0x04,
|
||||
0x33, 0x35, 0x30, 0x30 };
|
||||
// Challenge
|
||||
const uint8_t out_message1[] = {
|
||||
0x01, 0x01, 0x02, 0x00, 0x00, 0x0b, 0x43, 0x09,
|
||||
0x60, 0x19, 0x12, 0xa8, 0x91, 0x45, 0x89, 0x8f,
|
||||
0x37 };
|
||||
// Response
|
||||
const uint8_t in_message2[] = {
|
||||
0x01, 0x01, 0x02, 0x00, 0x00, 0x15, 0x52, 0x10,
|
||||
0x10, 0x39, 0xcc, 0x35, 0xb9, 0x08, 0x5a, 0x92,
|
||||
0xd7, 0x2a, 0xd3, 0x07, 0x10, 0xae, 0x0d, 0xfc,
|
||||
0x20, 0x01, 0x01 };
|
||||
// Send new encryption key, apparently (why again?)
|
||||
// Encrypted payload?: 07 2f b9 81 3d 0f 14 ac 59
|
||||
const uint8_t out_message2[] = {
|
||||
0x01, 0x01, 0x02, 0x00, 0x00, 0x0b, 0x48, 0x09,
|
||||
0x75, 0x4a, 0x65, 0x60, 0x4a, 0x44, 0x3a, 0x6c,
|
||||
0x5e };
|
||||
|
||||
// Receive some shit.
|
||||
const uint8_t in_message3[] = {
|
||||
0x01, 0x01, 0x02, 0x01, 0x00, 0x1a, 0x53, 0x18,
|
||||
0x51, 0x56, 0xe9, 0xd1, 0x47, 0x37, 0x60, 0x94,
|
||||
0x46, 0xaa, 0x5d, 0x6b, 0x93, 0x63, 0x37, 0x6b,
|
||||
0x81, 0xf4, 0xa3, 0x23, 0xab, 0x3f, 0xe4, 0x25,
|
||||
0xdf, 0xd3, 0x2b, 0xb7, 0x2d, 0x82 };
|
||||
|
||||
const uint8_t out_message3[] = {
|
||||
0x01, 0x01, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00 };
|
||||
|
||||
DATA_BLOB data;
|
||||
data.data = talloc_memdup(client_ctx, in_message1, sizeof(in_message1));
|
||||
data.length = sizeof(in_message1);
|
||||
handle_message(client_ctx, data);
|
||||
talloc_free(data.data);
|
||||
|
||||
data.data = talloc_memdup(client_ctx, in_message2, sizeof(in_message2));
|
||||
data.length = sizeof(in_message2);
|
||||
handle_message(client_ctx, data);
|
||||
talloc_free(data.data);
|
||||
|
||||
/* Attempt at parsing out_message2 */
|
||||
struct arcfour_ctx rc4;
|
||||
arcfour_set_key(&rc4, MD5_HASH_LEN, client_ctx->rc4key);
|
||||
uint8_t buf[sizeof(out_message2)] = {0};
|
||||
arcfour_crypt(&rc4, sizeof(out_message2) - 8, buf, out_message2 + 8);
|
||||
hexdump("Decrypted outgoing payload", buf, sizeof(out_message2) - 8);
|
||||
|
||||
data.data = talloc_memdup(client_ctx, in_message3, sizeof(in_message3));
|
||||
data.length = sizeof(in_message3);
|
||||
printf("%x %x\n", sizeof(in_message3), data.length);
|
||||
handle_message(client_ctx, data);
|
||||
talloc_free(data.data);
|
||||
/*
|
||||
* Handle death of children
|
||||
*/
|
||||
struct sigaction sa;
|
||||
memset(&sa, 0, sizeof(sa));
|
||||
sa.sa_handler = sigchld_handler;
|
||||
sigaction(SIGCHLD, &sa, NULL);
|
||||
|
||||
/*
|
||||
* Open up a TCP socket the Chiron port
|
||||
*/
|
||||
//listen_server(mem_ctx, "::", CHIRON_PORT, "tcp", handle_connection);
|
||||
listen_server(mem_ctx, "::", CHIRON_PORT, "tcp", handle_connection);
|
||||
|
||||
talloc_free(mem_ctx);
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue