1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /*- |
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4 | * Copyright (c) 2005 Christian S.J. Peron |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions |
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9 | * are met: |
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10 | * 1. Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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26 | * SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #include <sys/cdefs.h> |
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30 | __FBSDID("$FreeBSD$"); |
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31 | |
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32 | #include <rtems/bsd/sys/types.h> |
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33 | #include <sys/protosw.h> |
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34 | #include <sys/socket.h> |
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35 | #include <sys/socketvar.h> |
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36 | #include <sys/sysctl.h> |
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37 | #include <rtems/bsd/sys/param.h> |
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38 | #include <sys/user.h> |
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39 | |
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40 | #include <net/if.h> |
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41 | #include <net/if_var.h> |
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42 | #include <net/bpf.h> |
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43 | #include <net/bpfdesc.h> |
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44 | #include <arpa/inet.h> |
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45 | |
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46 | #include <err.h> |
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47 | #include <errno.h> |
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48 | #include <stdint.h> |
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49 | #include <stdio.h> |
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50 | #include <stdlib.h> |
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51 | #include <string.h> |
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52 | #include <unistd.h> |
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53 | |
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54 | #include "netstat.h" |
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55 | |
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56 | /* print bpf stats */ |
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57 | |
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58 | static char * |
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59 | bpf_pidname(pid_t pid) |
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60 | { |
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61 | #ifdef __rtems__ |
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62 | return "rtems"; |
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63 | #else /* __rtems__ */ |
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64 | struct kinfo_proc newkp; |
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65 | int error, mib[4]; |
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66 | size_t size; |
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67 | |
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68 | mib[0] = CTL_KERN; |
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69 | mib[1] = KERN_PROC; |
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70 | mib[2] = KERN_PROC_PID; |
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71 | mib[3] = pid; |
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72 | size = sizeof(newkp); |
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73 | error = sysctl(mib, 4, &newkp, &size, NULL, 0); |
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74 | if (error < 0) { |
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75 | warn("kern.proc.pid failed"); |
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76 | return (strdup("??????")); |
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77 | } |
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78 | return (strdup(newkp.ki_comm)); |
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79 | #endif /* __rtems__ */ |
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80 | } |
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81 | |
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82 | static void |
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83 | bpf_flags(struct xbpf_d *bd, char *flagbuf) |
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84 | { |
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85 | |
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86 | *flagbuf++ = bd->bd_promisc ? 'p' : '-'; |
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87 | *flagbuf++ = bd->bd_immediate ? 'i' : '-'; |
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88 | *flagbuf++ = bd->bd_hdrcmplt ? '-' : 'f'; |
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89 | *flagbuf++ = (bd->bd_direction == BPF_D_IN) ? '-' : |
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90 | ((bd->bd_direction == BPF_D_OUT) ? 'o' : 's'); |
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91 | *flagbuf++ = bd->bd_feedback ? 'b' : '-'; |
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92 | *flagbuf++ = bd->bd_async ? 'a' : '-'; |
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93 | *flagbuf++ = bd->bd_locked ? 'l' : '-'; |
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94 | *flagbuf++ = '\0'; |
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95 | } |
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96 | |
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97 | void |
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98 | bpf_stats(char *ifname) |
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99 | { |
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100 | struct xbpf_d *d, *bd, zerostat; |
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101 | char *pname, flagbuf[12]; |
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102 | size_t size; |
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103 | |
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104 | if (zflag) { |
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105 | bzero(&zerostat, sizeof(zerostat)); |
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106 | if (sysctlbyname("net.bpf.stats", NULL, NULL, |
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107 | &zerostat, sizeof(zerostat)) < 0) |
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108 | warn("failed to zero bpf counters"); |
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109 | return; |
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110 | } |
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111 | if (sysctlbyname("net.bpf.stats", NULL, &size, |
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112 | NULL, 0) < 0) { |
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113 | warn("net.bpf.stats"); |
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114 | return; |
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115 | } |
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116 | if (size == 0) |
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117 | return; |
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118 | bd = malloc(size); |
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119 | if (bd == NULL) { |
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120 | warn("malloc failed"); |
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121 | return; |
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122 | } |
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123 | if (sysctlbyname("net.bpf.stats", bd, &size, |
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124 | NULL, 0) < 0) { |
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125 | warn("net.bpf.stats"); |
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126 | free(bd); |
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127 | return; |
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128 | } |
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129 | (void) printf("%5s %6s %7s %9s %9s %9s %5s %5s %s\n", |
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130 | "Pid", "Netif", "Flags", "Recv", "Drop", "Match", "Sblen", |
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131 | "Hblen", "Command"); |
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132 | for (d = &bd[0]; d < &bd[size / sizeof(*d)]; d++) { |
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133 | if (d->bd_structsize != sizeof(*d)) { |
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134 | warnx("bpf_stats_extended: version mismatch"); |
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135 | return; |
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136 | } |
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137 | if (ifname && strcmp(ifname, d->bd_ifname) != 0) |
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138 | continue; |
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139 | bpf_flags(d, flagbuf); |
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140 | pname = bpf_pidname(d->bd_pid); |
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141 | (void) printf("%5d %6s %7s %9ju %9ju %9ju %5d %5d %s\n", |
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142 | d->bd_pid, d->bd_ifname, flagbuf, |
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143 | d->bd_rcount, d->bd_dcount, d->bd_fcount, |
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144 | d->bd_slen, d->bd_hlen, pname); |
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145 | free(pname); |
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146 | } |
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147 | free(bd); |
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148 | } |
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