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zebra: keep rtadv_sock field in zrouter for optimisation

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in the case the vrf backend is vrf-lite, there is no need to have
separate sockets. use a socket located in zrouter, so that when needing
the socket, a common API is used. that API will return the appropriate
socket value.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
This commit is contained in:
Philippe Guibert 2019-03-27 15:05:58 +01:00
parent f20e2a09c8
commit 3738d700ff
2 changed files with 27 additions and 9 deletions
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33
zebra/rtadv.c
View File

@ -85,6 +85,13 @@ static void rtadv_event(struct zebra_vrf *, enum rtadv_event, int);
static int if_join_all_router(int, struct interface *);
static int if_leave_all_router(int, struct interface *);
static int rtadv_get_socket(struct zebra_vrf *zvrf)
{
if (zvrf->rtadv.sock >= 0)
return zvrf->rtadv.sock;
return zrouter.rtadv_sock;
}
static int rtadv_increment_received(struct zebra_vrf *zvrf, ifindex_t *ifindex)
{
int ret = -1;
@ -499,7 +506,7 @@ static int rtadv_timer(struct thread *thread)
"Fast RA Rexmit on interface %s",
ifp->name);
rtadv_send_packet(zvrf->rtadv.sock,
rtadv_send_packet(rtadv_get_socket(zvrf),
ifp);
} else {
zif->rtadv.AdvIntervalTimer -= period;
@ -513,8 +520,8 @@ static int rtadv_timer(struct thread *thread)
zif->rtadv
.MaxRtrAdvInterval;
rtadv_send_packet(
zvrf->rtadv.sock,
ifp);
rtadv_get_socket(zvrf),
ifp);
}
}
}
@ -528,7 +535,7 @@ static void rtadv_process_solicit(struct interface *ifp)
struct zebra_vrf *zvrf = vrf_info_lookup(ifp->vrf_id);
assert(zvrf);
rtadv_send_packet(zvrf->rtadv.sock, ifp);
rtadv_send_packet(rtadv_get_socket(zvrf), ifp);
}
/*
@ -884,7 +891,7 @@ static void ipv6_nd_suppress_ra_set(struct interface *ifp,
zif->rtadv.AdvIntervalTimer = 0;
zvrf->rtadv.adv_if_count--;
if_leave_all_router(zvrf->rtadv.sock, ifp);
if_leave_all_router(rtadv_get_socket(zvrf), ifp);
if (zvrf->rtadv.adv_if_count == 0)
rtadv_event(zvrf, RTADV_STOP, 0);
@ -903,11 +910,11 @@ static void ipv6_nd_suppress_ra_set(struct interface *ifp,
RTADV_NUM_FAST_REXMITS;
}
if_join_all_router(zvrf->rtadv.sock, ifp);
if_join_all_router(rtadv_get_socket(zvrf), ifp);
if (zvrf->rtadv.adv_if_count == 1)
rtadv_event(zvrf, RTADV_START,
zvrf->rtadv.sock);
rtadv_get_socket(zvrf));
}
}
}
@ -2140,7 +2147,13 @@ static void rtadv_event(struct zebra_vrf *zvrf, enum rtadv_event event, int val)
void rtadv_init(struct zebra_vrf *zvrf)
{
zvrf->rtadv.sock = rtadv_make_socket(zvrf->zns->ns_id);
if (vrf_is_backend_netns()) {
zvrf->rtadv.sock = rtadv_make_socket(zvrf->zns->ns_id);
zrouter.rtadv_sock = -1;
} else if (!zrouter.rtadv_sock) {
zvrf->rtadv.sock = -1;
zrouter.rtadv_sock = rtadv_make_socket(zvrf->zns->ns_id);
}
}
void rtadv_terminate(struct zebra_vrf *zvrf)
@ -2149,8 +2162,10 @@ void rtadv_terminate(struct zebra_vrf *zvrf)
if (zvrf->rtadv.sock >= 0) {
close(zvrf->rtadv.sock);
zvrf->rtadv.sock = -1;
} else if (zrouter.rtadv_sock >= 0) {
close(zrouter.rtadv_sock);
zrouter.rtadv_sock = -1;
}
zvrf->rtadv.adv_if_count = 0;
zvrf->rtadv.adv_msec_if_count = 0;
}

3
zebra/zebra_router.h
View File

@ -82,6 +82,9 @@ struct zebra_router {
struct hash *iptable_hash;
/* used if vrf backend is not network namespace */
int rtadv_sock;
/* A sequence number used for tracking routes */
_Atomic uint32_t sequence_num;