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Add an option to set source address for a BGP session.

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When adding a BGP neighbour, one can set "update-source" (quagga syntax) to the
source IP address that will be used for that session.

Signed-off-by: Benjamin Cama <benoar@dolka.fr>
This commit is contained in:
Benjamin Cama 2011-07-22 02:11:33 +02:00
parent 11ec3c4a24
commit b36141c0c7
5 changed files with 51 additions and 3 deletions
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30
cli.c
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@ -1038,6 +1038,11 @@ static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int arg
h = BGP_HOLD_TIME;
cli_print(cli, " neighbour %s timers %d %d", config->neighbour[i].name, k, h);
if (config->neighbour[i].update_source.s_addr != INADDR_ANY)
cli_print(cli, " neighbour %s update-source %s",
config->neighbour[i].name,
inet_ntoa(config->neighbour[i].update_source));
}
}
#endif
@ -2064,6 +2069,7 @@ static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **a
return cli_arg_help(cli, 0,
"remote-as", "Set remote autonomous system number",
"timers", "Set timers",
"update-source", "Set source address to use for the BGP session",
NULL);
default:
@ -2082,6 +2088,9 @@ static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **a
return cli_arg_help(cli, 1, NULL);
}
if (MATCH("update-source", argv[1]))
return cli_arg_help(cli, argc > 3, "A.B.C.D", "Source IP address", NULL);
return CLI_OK;
}
}
@ -2118,12 +2127,33 @@ static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **a
snprintf(config->neighbour[i].name, sizeof(config->neighbour[i].name), "%s", argv[0]);
config->neighbour[i].keepalive = -1;
config->neighbour[i].hold = -1;
config->neighbour[i].update_source.s_addr = INADDR_ANY;
}
config->neighbour[i].as = as;
return CLI_OK;
}
if (MATCH("update-source", argv[1]))
{
struct in_addr addr;
if (!config->neighbour[i].name[0])
{
cli_error(cli, "Specify remote-as first");
return CLI_OK;
}
if (!inet_aton(argv[2], &addr))
{
cli_error(cli, "Cannot parse IP \"%s\"", argv[2]);
return CLI_OK;
}
config->neighbour[i].update_source = addr;
return CLI_OK;
}
if (argc != 4 || !MATCH("timers", argv[1]))
{
cli_error(cli, "Invalid arguments");