Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2b3bba34 authored by Sreeram Ramachandran's avatar Sreeram Ramachandran
Browse files

Dump all the correct routing tables. 

The list of tables is maintained in /data/misc/net/rt_tables by netd.

Change-Id: I55475c08c5e43bcf61af916210e680c47480ac32
parent f9cfae24

cmds/dumpstate/dumpstate.c

+3 −4
Original line number Diff line number Diff line
@@ -174,10 +174,9 @@ static void dumpstate() { 
    run_command("NETWORK INTERFACES", 10, SU_PATH, "root", "netcfg", NULL);

    run_command("IP RULES", 10, "ip", "rule", "show", NULL);

    run_command("IP RULES v6", 10, "ip", "-6", "rule", "show", NULL);

    run_command("ROUTE TABLE 60", 10, "ip", "route", "show", "table", "60", NULL);

    run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "60", NULL);

    run_command("ROUTE TABLE 61", 10, "ip", "route", "show", "table", "61", NULL);

    run_command("ROUTE TABLE 61 v6", 10, "ip", "-6", "route", "show", "table", "61", NULL);



    dump_route_tables();



    dump_file("ARP CACHE", "/proc/net/arp");

    run_command("IPTABLES", 10, SU_PATH, "root", "iptables", "-L", "-nvx", NULL);

    run_command("IP6TABLES", 10, SU_PATH, "root", "ip6tables", "-L", "-nvx", NULL);

cmds/dumpstate/dumpstate.h

+3 −0
Original line number Diff line number Diff line
@@ -60,6 +60,9 @@ void do_showmap(int pid, const char *name); 
/* Gets the dmesg output for the kernel */

void do_dmesg();



/* Prints the contents of all the routing tables, both IPv4 and IPv6. */

void dump_route_tables();



/* Play a sound via Stagefright */

void play_sound(const char* path);

cmds/dumpstate/utils.c

+19 −0
Original line number Diff line number Diff line
@@ -593,3 +593,22 @@ error_close_fd: 
void play_sound(const char* path) {

    run_command(NULL, 5, "/system/bin/stagefright", "-o", "-a", path, NULL);

}



void dump_route_tables() {

    const char* const RT_TABLES_PATH = "/data/misc/net/rt_tables";

    dump_file("RT_TABLES", RT_TABLES_PATH);

    FILE* fp = fopen(RT_TABLES_PATH, "r");

    if (!fp) {

        printf("*** %s: %s\n", RT_TABLES_PATH, strerror(errno));

        return;

    }

    char table[16];

    // Each line has an integer (the table number), a space, and a string (the table name). We only

    // need the table number. It's a 32-bit unsigned number, so max 10 chars. Skip the table name.

    // Add a fixed max limit so this doesn't go awry.

    for (int i = 0; i < 64 && fscanf(fp, " %10s %*s", table) == 1; ++i) {

        run_command("ROUTE TABLE IPv4", 10, "ip", "-4", "route", "show", "table", table, NULL);

        run_command("ROUTE TABLE IPv6", 10, "ip", "-6", "route", "show", "table", table, NULL);

    }

    fclose(fp);

}