cmd/pcap.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2019
   4  * Ramon Fried <rfried.dev@gmail.com>
   5  */
   6
   7 #include <command.h>
   8 #include <vsprintf.h>
   9 #include <net.h>
  10 #include <net/pcap.h>
  11
  12 static int do_pcap_init(struct cmd_tbl *cmdtp, int flag, int argc,
  13                         char *const argv[])
  14 {
  15         phys_addr_t addr;
  16         unsigned int size;
  17
  18         if (argc != 3)
  19                 return CMD_RET_USAGE;
  20
  21         addr = hextoul(argv[1], NULL);
  22         size = dectoul(argv[2], NULL);
  23
  24         return pcap_init(addr, size) ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
  25 }
  26
  27 static int do_pcap_start(struct cmd_tbl *cmdtp, int flag, int argc,
  28                          char *const argv[])
  29 {
  30         return pcap_start_stop(true) ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
  31 }
  32
  33 static int do_pcap_stop(struct cmd_tbl *cmdtp, int flag, int argc,
  34                         char *const argv[])
  35 {
  36         return pcap_start_stop(false) ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
  37 }
  38
  39 static int do_pcap_status(struct cmd_tbl *cmdtp, int flag, int argc,
  40                           char *const argv[])
  41 {
  42         return pcap_print_status() ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
  43 }
  44
  45 static int do_pcap_clear(struct cmd_tbl *cmdtp, int flag, int argc,
  46                          char *const argv[])
  47 {
  48         return pcap_clear() ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
  49 }
  50
  51 U_BOOT_LONGHELP(pcap,
  52         "- network packet capture\n\n"
  53         "pcap\n"
  54         "pcap init\t\t\t<addr> <max_size>\n"
  55         "pcap start\t\t\tstart capture\n"
  56         "pcap stop\t\t\tstop capture\n"
  57         "pcap status\t\t\tprint status\n"
  58         "pcap clear\t\t\tclear capture buffer\n"
  59         "\n"
  60         "With:\n"
  61         "\t<addr>: user address to which pcap will be stored (hexedcimal)\n"
  62         "\t<max_size>: Maximum size of pcap file (decimal)\n"
  63         "\n");
  64
  65 U_BOOT_CMD_WITH_SUBCMDS(pcap, "pcap", pcap_help_text,
  66                         U_BOOT_SUBCMD_MKENT(init, 3, 0, do_pcap_init),
  67                         U_BOOT_SUBCMD_MKENT(start, 1, 0, do_pcap_start),
  68                         U_BOOT_SUBCMD_MKENT(stop, 1, 0, do_pcap_stop),
  69                         U_BOOT_SUBCMD_MKENT(status, 1, 0, do_pcap_status),
  70                         U_BOOT_SUBCMD_MKENT(clear, 1, 0, do_pcap_clear),
  71 );