FreeCalypso > hg > freecalypso-sw

annotate rvinterf/include/localsock.h @ 690:d627c848fde3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
cc_csf.c compiles
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Tue, 30 Sep 2014 01:27:29 +0000
parents cb833ff54d88
children a5c8f48003cd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
176
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
1 /*
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
2 * This header defines and describes (through comments) the local UNIX domain
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
3 * socket interface implemented between rvinterf and its clients like fc-tmsh.
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
4 *
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
5 * The UNIX domain sockets used for this ad hoc interface are of the
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
6 * SOCK_STREAM kind, but the true nature of the communication is message-based.
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
7 * We use the same trick that is used for DNS over TCP: every message in each
178
7ab6b29e76bb rvinterf: forwarding of Rx packets to clients implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 176
diff changeset
8 * direction is preceded by a 2-byte length. This length is sent MSB first
7ab6b29e76bb rvinterf: forwarding of Rx packets to clients implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 176
diff changeset
9 * just like in DNS over TCP. The limit on the size of these messages
176
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
10 * (for sizing buffers etc) is:
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
11 */
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
12
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
13 #define LOCALSOCK_MAX_MSG 1024
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
14
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
15 /*
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
16 * Each message in the client->rvinterf direction (can be seen as command)
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
17 * begins (after the length) with an opcode byte as follows:
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
18 */
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
19
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
20 #define CLI2RVI_WANT_RVTRACE 0x00
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
21 #define CLI2RVI_WANT_MUXPROTO 0x01
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
22 #define CLI2RVI_PKT_TO_TARGET 0x02
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
23 #define CLI2RVI_RAWBYTES_TO_TARGET 0x03
266
cb833ff54d88 rvinterf: CLI2RVI_RESET_PACKET_RX command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 256
diff changeset
24 #define CLI2RVI_RESET_PACKET_RX 0x04
176
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
25
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
26 /*
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
27 * The first two commands (CLI2RVI_WANT_RVTRACE and CLI2RVI_WANT_MUXPROTO)
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
28 * are the means by which client programs inform rvinterf that they are
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
29 * interested in receiving copies of certain packets coming from the target.
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
30 *
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
31 * The CLI2RVI_WANT_RVTRACE opcode needs to be followed by a USEID mask value
178
7ab6b29e76bb rvinterf: forwarding of Rx packets to clients implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 176
diff changeset
32 * and a USEID match value, both in the network byte order, i.e., MSB first,
7ab6b29e76bb rvinterf: forwarding of Rx packets to clients implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 176
diff changeset
33 * for a total message length of 9 bytes. For every RV trace message received
7ab6b29e76bb rvinterf: forwarding of Rx packets to clients implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 176
diff changeset
34 * from the target, rvinterf will iterate through all active clients to see who
7ab6b29e76bb rvinterf: forwarding of Rx packets to clients implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 176
diff changeset
35 * is interested: if the received USEID ANDed with the mask equals the match
7ab6b29e76bb rvinterf: forwarding of Rx packets to clients implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 176
diff changeset
36 * value, the message will be forwarded to that client.
176
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
37 *
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
38 * The CLI2RVI_WANT_MUXPROTO opcode needs to be followed by one byte
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
39 * identifying the RVTMUX protocol of interest, i.e., the first byte of the
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
40 * packets exchanged between the host and the target, e.g., 0x12 for L1 traces
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
41 * as defined in pktmux.h, for a total message length of 2 bytes.
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
42 *
266
cb833ff54d88 rvinterf: CLI2RVI_RESET_PACKET_RX command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 256
diff changeset
43 * The CLI2RVI_RESET_PACKET_RX opcode resets the "interests" previously set
cb833ff54d88 rvinterf: CLI2RVI_RESET_PACKET_RX command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 256
diff changeset
44 * with CLI2RVI_WANT_RVTRACE and/or CLI2RVI_WANT_MUXPROTO. It is a "blanket"
cb833ff54d88 rvinterf: CLI2RVI_RESET_PACKET_RX command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 256
diff changeset
45 * reset; the command message consists of just the opcode.
cb833ff54d88 rvinterf: CLI2RVI_RESET_PACKET_RX command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 256
diff changeset
46 *
176
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
47 * The last two commands (CLI2RVI_PKT_TO_TARGET and CLI2RVI_RAWBYTES_TO_TARGET)
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
48 * cause data payload to be sent to the target serial port. Payload following
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
49 * CLI2RVI_PKT_TO_TARGET (must not exceed MAX_PKT_TO_TARGET) is sent with the
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
50 * proper packet encapsulation per TI; bytes following
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
51 * CLI2RVI_RAWBYTES_TO_TARGET are sent raw.
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
52 */
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
53
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
54 /*
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
55 * Each message in the rvinterf->client direction begins (after the length)
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
56 * with a message type byte as follows:
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
57 */
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
58
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
59 #define RVI2CLI_PKT_FROM_TARGET 0x00
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
60 #define RVI2CLI_LOCAL_CMD_RESP 0x01
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
61
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
62 /*
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
63 * Messages beginning with RVI2CLI_PKT_FROM_TARGET are packets received
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
64 * from the target GSM device; the byte following this type code is the
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
65 * first byte of the packet from the target, e.g., 0x11 for RV traces or
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
66 * 0x12 for L1 traces. Rvinterf will only start sending these messages
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
67 * to a client after that client has expressed interest in receiving
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
68 * target->host packets of a particular type.
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
69 *
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
70 * Messages beginning with RVI2CLI_LOCAL_CMD_RESP are generated locally
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
71 * by rvinterf itself as responses to commands, currently as responses to
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
72 * CLI2RVI_WANT_{RVTRACE,MUXPROTO}. The byte following the
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
73 * RVT2CLI_LOCAL_CMD_RESP type code is ASCII '+' or ASCII '-', indicating
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
74 * success or error, respectively. Any remaining bytes form a message
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
75 * for the user.
7f727aaf5cd4 rvinterf: beginning of server implementation
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
76 */