The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008, The Android Open Source Project |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 12 | * the documentation and/or other materials provided with the |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 13 | * distribution. |
| 14 | * * Neither the name of Google, Inc. nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this |
| 16 | * software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 25 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 32 | #include <arpa/inet.h> |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 33 | #include <stdio.h> |
| 34 | #include <stdlib.h> |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 35 | #include <sys/socket.h> |
| 36 | #include <sys/types.h> |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 37 | |
| 38 | typedef union iaddr iaddr; |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 39 | typedef union iaddr6 iaddr6; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 40 | |
| 41 | union iaddr { |
| 42 | unsigned u; |
| 43 | unsigned char b[4]; |
| 44 | }; |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 45 | |
| 46 | union iaddr6 { |
| 47 | struct { |
| 48 | unsigned a; |
| 49 | unsigned b; |
| 50 | unsigned c; |
| 51 | unsigned d; |
| 52 | } u; |
| 53 | unsigned char b[16]; |
| 54 | }; |
| 55 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 56 | static const char *state2str(unsigned state) |
| 57 | { |
| 58 | switch(state){ |
| 59 | case 0x1: return "ESTABLISHED"; |
| 60 | case 0x2: return "SYN_SENT"; |
| 61 | case 0x3: return "SYN_RECV"; |
| 62 | case 0x4: return "FIN_WAIT1"; |
| 63 | case 0x5: return "FIN_WAIT2"; |
| 64 | case 0x6: return "TIME_WAIT"; |
| 65 | case 0x7: return "CLOSE"; |
| 66 | case 0x8: return "CLOSE_WAIT"; |
| 67 | case 0x9: return "LAST_ACK"; |
| 68 | case 0xA: return "LISTEN"; |
| 69 | case 0xB: return "CLOSING"; |
| 70 | default: return "UNKNOWN"; |
| 71 | } |
| 72 | } |
| 73 | |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 74 | /* addr + : + port + \0 */ |
| 75 | #define ADDR_LEN INET6_ADDRSTRLEN + 1 + 5 + 1 |
| 76 | |
| 77 | static void addr2str(int af, const void *addr, unsigned port, char *buf) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 78 | { |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 79 | if (inet_ntop(af, addr, buf, ADDR_LEN) == NULL) { |
| 80 | *buf = '\0'; |
| 81 | return; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 82 | } |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 83 | size_t len = strlen(buf); |
| 84 | if (port) { |
| 85 | snprintf(buf+len, ADDR_LEN-len, ":%d", port); |
| 86 | } else { |
| 87 | strncat(buf+len, ":*", ADDR_LEN-len-1); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | static void ipv4(const char *filename, const char *label) { |
| 92 | FILE *fp = fopen(filename, "r"); |
| 93 | if (fp == NULL) { |
| 94 | return; |
| 95 | } |
| 96 | char buf[BUFSIZ]; |
| 97 | fgets(buf, BUFSIZ, fp); |
| 98 | while (fgets(buf, BUFSIZ, fp)){ |
| 99 | char lip[ADDR_LEN]; |
| 100 | char rip[ADDR_LEN]; |
| 101 | iaddr laddr, raddr; |
| 102 | unsigned lport, rport, state, txq, rxq, num; |
| 103 | int n = sscanf(buf, " %d: %x:%x %x:%x %x %x:%x", |
| 104 | &num, &laddr.u, &lport, &raddr.u, &rport, |
| 105 | &state, &txq, &rxq); |
| 106 | if (n == 8) { |
| 107 | addr2str(AF_INET, &laddr, lport, lip); |
| 108 | addr2str(AF_INET, &raddr, rport, rip); |
| 109 | |
| 110 | printf("%4s %6d %6d %-22s %-22s %s\n", |
Brian Carlstrom | 3c412f6 | 2013-05-29 15:11:20 -0700 | [diff] [blame] | 111 | label, rxq, txq, lip, rip, |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 112 | state2str(state)); |
| 113 | } |
| 114 | } |
| 115 | fclose(fp); |
| 116 | } |
| 117 | |
| 118 | static void ipv6(const char *filename, const char *label) { |
| 119 | FILE *fp = fopen(filename, "r"); |
| 120 | if (fp == NULL) { |
| 121 | return; |
| 122 | } |
| 123 | char buf[BUFSIZ]; |
| 124 | fgets(buf, BUFSIZ, fp); |
| 125 | while (fgets(buf, BUFSIZ, fp)){ |
| 126 | char lip[ADDR_LEN]; |
| 127 | char rip[ADDR_LEN]; |
| 128 | iaddr6 laddr6, raddr6; |
| 129 | unsigned lport, rport, state, txq, rxq, num; |
| 130 | int n = sscanf(buf, " %d: %8x%8x%8x%8x:%x %8x%8x%8x%8x:%x %x %x:%x", |
| 131 | &num, &laddr6.u.a, &laddr6.u.b, &laddr6.u.c, &laddr6.u.d, &lport, |
| 132 | &raddr6.u.a, &raddr6.u.b, &raddr6.u.c, &raddr6.u.d, &rport, |
| 133 | &state, &txq, &rxq); |
| 134 | if (n == 14) { |
| 135 | addr2str(AF_INET6, &laddr6, lport, lip); |
| 136 | addr2str(AF_INET6, &raddr6, rport, rip); |
| 137 | |
| 138 | printf("%4s %6d %6d %-22s %-22s %s\n", |
Brian Carlstrom | 3c412f6 | 2013-05-29 15:11:20 -0700 | [diff] [blame] | 139 | label, rxq, txq, lip, rip, |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 140 | state2str(state)); |
| 141 | } |
| 142 | } |
| 143 | fclose(fp); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | int netstat_main(int argc, char *argv[]) |
| 147 | { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 148 | printf("Proto Recv-Q Send-Q Local Address Foreign Address State\n"); |
Brian Carlstrom | 2f7b72f | 2010-09-27 22:49:11 -0700 | [diff] [blame] | 149 | ipv4("/proc/net/tcp", "tcp"); |
| 150 | ipv4("/proc/net/udp", "udp"); |
| 151 | ipv6("/proc/net/tcp6", "tcp6"); |
| 152 | ipv6("/proc/net/udp6", "udp6"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 153 | return 0; |
| 154 | } |