FreeCalypso > hg > freecalypso-tools
view rvinterf/asyncshell/tchcmd.c @ 926:6a0aa8d36d06
rvinterf backslash escape: introduce libprint
The new helper function library named libprint is meant to replace
the badly misnamed libg23, and will soon contain functions for
printing all of the same kinds of GPF TST packets that are now handled
in libg23. However, we are also moving safe_print_trace() from libasync
to this new library, and changing it to emit our new backslash escape
format.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Tue, 23 May 2023 03:47:46 +0000 |
parents | 2e6764022292 |
children |
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/* * Commands for manipulating the experimental TCH rerouting feature * of FreeCalypso GSM firmware */ #include <sys/types.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include "pktmux.h" #include "limits.h" #include "tch_feature.h" #include "exitcodes.h" extern u_char rvi_msg[]; extern int rvi_msg_len; static int tch_rawdump_mode; send_tch_config_req(config) { u_char sendpkt[3]; sendpkt[0] = RVT_TCH_HEADER; sendpkt[1] = TCH_CONFIG_REQ; sendpkt[2] = config; /* send it! */ send_pkt_to_target(sendpkt, 3); return(0); } cmd_tchdl_common(argc, argv) char **argv; { int config; if (!strcmp(argv[0], "enable") || !strcmp(argv[0], "on") || !strcmp(argv[0], "1")) config = 1; else if (!strcmp(argv[0], "disable") || !strcmp(argv[0], "off") || !strcmp(argv[0], "0")) config = 0; else { printf("error: boolean argument required\n"); return(ERROR_USAGE); } return send_tch_config_req(config); } void cmd_tchdl_interactive(argstr) char *argstr; { char *argv[2]; int argc, rc; rc = parse_interactive_command_into_argv(argstr, argv, 1, 1, &argc); if (rc < 0) return; tch_rx_control(1); cmd_tchdl_common(argc, argv); } cmd_tchdl_oneshot(argc, argv) char **argv; { return cmd_tchdl_common(argc - 1, argv + 1); } static void tch_rawdump() { char buf[MAX_PKT_FROM_TARGET*3+5], *dp; u_char *cp, *endp; cp = rvi_msg + 2; endp = rvi_msg + rvi_msg_len; strcpy(buf, "TCH:"); dp = buf + 4; while (cp < endp) { sprintf(dp, " %02X", *cp++); dp += 3; } *dp = '\0'; async_msg_output(buf); } void tch_packet_rx() { char buf[128], *mode_kw; int expect_pktlen, databytes; if (tch_rawdump_mode) { tch_rawdump(); return; } if (rvi_msg_len < 3) { inv: async_msg_output("Error: invalid TCH packet received"); return; } switch (rvi_msg[2]) { case TCH_CONFIG_CONF: if (rvi_msg_len != 4) goto inv; if (rvi_msg[3] & 0xFE) goto inv; sprintf(buf, "TCH_CONFIG_CONF: DL forwarding is %s", rvi_msg[3] ? "enabled" : "disabled"); async_msg_output(buf); return; case TCH_ULBITS_CONF: if (rvi_msg_len != 3) goto inv; tch_ulbits_conf(); return; case TCH_DLBITS_OLD_IND: if (rvi_msg_len != 43) goto inv; tch_dlbits_old_handler(); return; case TCH_DLBITS_NEW_IND: if (rvi_msg_len < 4) goto inv; switch (rvi_msg[3]) { case TCH_FS_MODE: mode_kw = "FR"; expect_pktlen = 45; databytes = 33; break; case TCH_HS_MODE: mode_kw = "HR"; expect_pktlen = 27; databytes = 15; break; case TCH_EFR_MODE: mode_kw = "EFR"; expect_pktlen = 45; databytes = 33; break; default: goto inv; } if (rvi_msg_len != expect_pktlen) goto inv; tch_dlbits_new_handler(mode_kw, databytes); return; default: goto inv; } } static void cmd_tch_dumpraw(argc, argv) char **argv; { if (argc < 2) { printf("error: too few arguments\n"); return; } if (!strcmp(argv[1], "enable") || !strcmp(argv[1], "on") || !strcmp(argv[1], "1")) tch_rawdump_mode = 1; else if (!strcmp(argv[1], "disable") || !strcmp(argv[1], "off") || !strcmp(argv[1], "0")) tch_rawdump_mode = 0; else printf("error: boolean argument required\n"); } static void cmd_tch_status(argc, argv) char **argv; { if (argc > 1) { printf("error: too many arguments\n"); return; } show_tch_record_status(); show_tch_play_status(); printf("TCH raw dump mode is %s\n", tch_rawdump_mode ? "enabled" : "disabled"); } void cmd_tch_dispatch(argstr) char *argstr; { char *argv[3]; int argc, rc; rc = parse_interactive_command_into_argv(argstr, argv, 1, 2, &argc); if (rc < 0) return; if (!strcmp(argv[0], "dump-raw")) { cmd_tch_dumpraw(argc, argv); return; } if (!strcmp(argv[0], "play")) { cmd_tch_play(argc, argv); return; } if (!strcmp(argv[0], "record")) { cmd_tch_record(argc, argv); return; } if (!strcmp(argv[0], "status")) { cmd_tch_status(argc, argv); return; } printf("error: invalid tch subcommand\n"); }