kkoshelev@gmail.com
Those to support ip commands needed by wg-quick script.
1. "ip rule" now supports "not" keyword.
2. "ip" command now supports arbitrary numeric routing tables above 1024.

--- a/networking/libiproute/iprule.c	2021-01-01 05:30:02.000000000 -0800
+++ b/iprule.c	2022-05-10 16:32:10.781087924 -0700
@@ -19,6 +19,7 @@
 /* from <linux/fib_rules.h>: */
 #define FRA_SUPPRESS_IFGROUP   13
 #define FRA_SUPPRESS_PREFIXLEN 14
+#define FIB_RULE_INVERT     0x00000002

 #include "ip_common.h"  /* #include "libbb.h" is inside */
 #include "rt_names.h"
@@ -31,18 +32,18 @@

 /* If you add stuff here, update iprule_full_usage */
 static const char keywords[] ALIGN1 =
-	"from\0""to\0""preference\0""order\0""priority\0"
+	"not\0""from\0""to\0""preference\0""order\0""priority\0"
 	"tos\0""fwmark\0""realms\0""table\0""lookup\0"
 	"suppress_prefixlength\0""suppress_ifgroup\0"
 	"dev\0""iif\0""nat\0""map-to\0""type\0""help\0"
 	;
-#define keyword_preference            (keywords           + sizeof("from") + sizeof("to"))
+#define keyword_preference            (keywords           + sizeof("not") + sizeof("from") + sizeof("to"))
 #define keyword_fwmark                (keyword_preference + sizeof("preference") + sizeof("order") + sizeof("priority") + sizeof("tos"))
 #define keyword_realms                (keyword_fwmark     + sizeof("fwmark"))
 #define keyword_suppress_prefixlength (keyword_realms     + sizeof("realms") + sizeof("table") + sizeof("lookup"))
 #define keyword_suppress_ifgroup      (keyword_suppress_prefixlength + sizeof("suppress_prefixlength"))
 enum {
-	ARG_from = 1, ARG_to, ARG_preference, ARG_order, ARG_priority,
+	ARG_not = 1, ARG_from, ARG_to, ARG_preference, ARG_order, ARG_priority,
 	ARG_tos, ARG_fwmark, ARG_realms, ARG_table, ARG_lookup,
 	ARG_suppress_prefixlength, ARG_suppress_ifgroup,
 	ARG_dev, ARG_iif, ARG_nat, ARG_map_to, ARG_type, ARG_help,
@@ -78,6 +79,10 @@
 	printf("%u:\t", tb[RTA_PRIORITY] ?
 					*(unsigned*)RTA_DATA(tb[RTA_PRIORITY])
 					: 0);
+
+	if (r->rtm_flags & FIB_RULE_INVERT)
+		printf("not ");
+
 	printf("from ");
 	if (tb[RTA_SRC]) {
 		if (r->rtm_src_len != host_len) {
@@ -230,7 +235,9 @@
 		key = index_in_substrings(keywords, *argv) + 1;
 		if (key == 0) /* no match found in keywords array, bail out. */
 			invarg_1_to_2(*argv, applet_name);
-		if (key == ARG_from) {
+		if (key == ARG_not) {
+			req.r.rtm_flags |= FIB_RULE_INVERT;
+		} else if (key == ARG_from) {
 			inet_prefix dst;
 			NEXT_ARG();
 			get_prefix(&dst, *argv, req.r.rtm_family);
--- a/networking/libiproute/rt_names.c	2021-01-01 05:30:02.000000000 -0800
+++ b/rt_names.c	2022-05-10 16:50:30.298597124 -0700
@@ -251,7 +251,14 @@
 int FAST_FUNC rtnl_rttable_a2n(uint32_t *id, char *arg)
 {
 	rtnl_rttable_initialize();
-	return rtnl_a2n(rtnl_rttable_tab, id, arg, 0);
+    if (!rtnl_a2n(rtnl_rttable_tab, id, arg, 0)) return 0;
+
+	unsigned i = bb_strtou(arg, NULL, 0);
+	if (i > RT_TABLE_MAX) {
+		*id = i;
+		return 0;
+	}
+	return -1;
 }

 #endif