From ce4bc1ed048233e89ee4cb95830bf6f01d523d1e Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Wed, 30 Dec 2015 17:32:51 +0100 Subject: [PATCH] iproute: support "scope". Closes 8561 function old new delta iproute_modify 1051 1120 +69 Signed-off-by: Denys Vlasenko Upstream-Status: Backport Modified patch to build against busybox 1.24.1: - s/invarg_1_to_2/invarg Signed-off-by: André Draszik --- networking/libiproute/iproute.c | 52 ++++++++++++++++++++++++++--------------- 1 file changed, 33 insertions(+), 19 deletions(-) diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c index d232ee6fd..82827488f 100644 --- a/networking/libiproute/iproute.c +++ b/networking/libiproute/iproute.c @@ -313,12 +313,13 @@ static int FAST_FUNC print_route(const struct sockaddr_nl *who UNUSED_PARAM, static int iproute_modify(int cmd, unsigned flags, char **argv) { static const char keywords[] ALIGN1 = - "src\0""via\0""mtu\0""lock\0""protocol\0"IF_FEATURE_IP_RULE("table\0") + "src\0""via\0""mtu\0""lock\0""scope\0""protocol\0"IF_FEATURE_IP_RULE("table\0") "dev\0""oif\0""to\0""metric\0""onlink\0"; enum { ARG_src, ARG_via, ARG_mtu, PARM_lock, + ARG_scope, ARG_protocol, IF_FEATURE_IP_RULE(ARG_table,) ARG_dev, @@ -344,6 +345,7 @@ IF_FEATURE_IP_RULE(ARG_table,) unsigned mxlock = 0; char *d = NULL; smalluint ok = 0; + smalluint scope_ok = 0; int arg; memset(&req, 0, sizeof(req)); @@ -352,15 +354,18 @@ IF_FEATURE_IP_RULE(ARG_table,) req.n.nlmsg_flags = NLM_F_REQUEST | flags; req.n.nlmsg_type = cmd; req.r.rtm_family = preferred_family; - if (RT_TABLE_MAIN) /* if it is zero, memset already did it */ + if (RT_TABLE_MAIN != 0) /* if it is zero, memset already did it */ req.r.rtm_table = RT_TABLE_MAIN; - if (RT_SCOPE_NOWHERE) + if (RT_SCOPE_NOWHERE != 0) req.r.rtm_scope = RT_SCOPE_NOWHERE; if (cmd != RTM_DELROUTE) { - req.r.rtm_protocol = RTPROT_BOOT; - req.r.rtm_scope = RT_SCOPE_UNIVERSE; - req.r.rtm_type = RTN_UNICAST; + if (RTPROT_BOOT != 0) + req.r.rtm_protocol = RTPROT_BOOT; + if (RT_SCOPE_UNIVERSE != 0) + req.r.rtm_scope = RT_SCOPE_UNIVERSE; + if (RTN_UNICAST != 0) + req.r.rtm_type = RTN_UNICAST; } mxrta->rta_type = RTA_METRICS; @@ -393,6 +398,13 @@ IF_FEATURE_IP_RULE(ARG_table,) } mtu = get_unsigned(*argv, "mtu"); rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu); + } else if (arg == ARG_scope) { + uint32_t scope; + NEXT_ARG(); + if (rtnl_rtscope_a2n(&scope, *argv)) + invarg(*argv, "scope"); + req.r.rtm_scope = scope; + scope_ok = 1; } else if (arg == ARG_protocol) { uint32_t prot; NEXT_ARG(); @@ -469,20 +481,22 @@ IF_FEATURE_IP_RULE(ARG_table,) addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta)); } - if (req.r.rtm_type == RTN_LOCAL || req.r.rtm_type == RTN_NAT) - req.r.rtm_scope = RT_SCOPE_HOST; - else - if (req.r.rtm_type == RTN_BROADCAST - || req.r.rtm_type == RTN_MULTICAST - || req.r.rtm_type == RTN_ANYCAST - ) { - req.r.rtm_scope = RT_SCOPE_LINK; - } - else if (req.r.rtm_type == RTN_UNICAST || req.r.rtm_type == RTN_UNSPEC) { - if (cmd == RTM_DELROUTE) - req.r.rtm_scope = RT_SCOPE_NOWHERE; - else if (!(ok & gw_ok)) + if (!scope_ok) { + if (req.r.rtm_type == RTN_LOCAL || req.r.rtm_type == RTN_NAT) + req.r.rtm_scope = RT_SCOPE_HOST; + else + if (req.r.rtm_type == RTN_BROADCAST + || req.r.rtm_type == RTN_MULTICAST + || req.r.rtm_type == RTN_ANYCAST + ) { req.r.rtm_scope = RT_SCOPE_LINK; + } + else if (req.r.rtm_type == RTN_UNICAST || req.r.rtm_type == RTN_UNSPEC) { + if (cmd == RTM_DELROUTE) + req.r.rtm_scope = RT_SCOPE_NOWHERE; + else if (!(ok & gw_ok)) + req.r.rtm_scope = RT_SCOPE_LINK; + } } if (req.r.rtm_family == AF_UNSPEC) { -- 2.11.0