From ac156aecb5f292f565ccd0aeafade4cc0cad6028 Mon Sep 17 00:00:00 2001 From: Donatas Abraitis Date: Fri, 1 Jul 2022 23:24:52 +0300 Subject: lib, vtysh: Add `allow-reserved-ranges` global command It will be used to allow/deny using IPv4 reserved ranges (Class E) for Zebra (configuring interface address) or BGP (allow next-hop to be from this range). Signed-off-by: Donatas Abraitis --- lib/command.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'lib/command.c') diff --git a/lib/command.c b/lib/command.c index cbecc81574..a23afb1e43 100644 --- a/lib/command.c +++ b/lib/command.c @@ -121,6 +121,11 @@ const char *cmd_version_get(void) return host.version; } +bool cmd_allow_reserved_ranges_get(void) +{ + return host.allow_reserved_ranges; +} + static int root_on_exit(struct vty *vty); /* Standard command node structures. */ @@ -454,6 +459,9 @@ static int config_write_host(struct vty *vty) if (name && name[0] != '\0') vty_out(vty, "domainname %s\n", name); + if (cmd_allow_reserved_ranges_get()) + vty_out(vty, "allow-reserved-ranges\n"); + /* The following are all configuration commands that are not sent to * watchfrr. For instance watchfrr is hardcoded to log to syslog so * we would always display 'log syslog informational' in the config @@ -2294,6 +2302,21 @@ DEFUN (no_banner_motd, return CMD_SUCCESS; } +DEFUN(allow_reserved_ranges, allow_reserved_ranges_cmd, "allow-reserved-ranges", + "Allow using IPv4 (Class E) reserved IP space\n") +{ + host.allow_reserved_ranges = true; + return CMD_SUCCESS; +} + +DEFUN(no_allow_reserved_ranges, no_allow_reserved_ranges_cmd, + "no allow-reserved-ranges", + NO_STR "Allow using IPv4 (Class E) reserved IP space\n") +{ + host.allow_reserved_ranges = false; + return CMD_SUCCESS; +} + int cmd_find_cmds(struct vty *vty, struct cmd_token **argv, int argc) { const struct cmd_node *node; @@ -2483,6 +2506,7 @@ void cmd_init(int terminal) host.lines = -1; cmd_banner_motd_line(FRR_DEFAULT_MOTD); host.motdfile = NULL; + host.allow_reserved_ranges = false; /* Install top nodes. */ install_node(&view_node); @@ -2552,6 +2576,8 @@ void cmd_init(int terminal) install_element(CONFIG_NODE, &no_banner_motd_cmd); install_element(CONFIG_NODE, &service_terminal_length_cmd); install_element(CONFIG_NODE, &no_service_terminal_length_cmd); + install_element(CONFIG_NODE, &allow_reserved_ranges_cmd); + install_element(CONFIG_NODE, &no_allow_reserved_ranges_cmd); log_cmd_init(); vrf_install_commands(); -- cgit v1.2.3