diff options
| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2018-01-30 16:01:27 +0100 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2018-01-30 22:49:26 +0100 |
| commit | a4942e65660597e38405cd31b3f2cefc1260799a (patch) | |
| tree | 46d4d203f8e16439b99f5a50f6ad9efa188f8844 /ggsn/ggsn.c | |
| parent | 4e43ef5ab09b187903a74958a92ade0b6b06e352 (diff) | |
ggsn.c: cb_tun_ind: Convert ifelse to switch statement
Change-Id: I4fc97f367ae615cdf0a9501f89419990c2fd4599
Diffstat (limited to 'ggsn/ggsn.c')
| -rw-r--r-- | ggsn/ggsn.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/ggsn/ggsn.c b/ggsn/ggsn.c index de8090b..c7f6376 100644 --- a/ggsn/ggsn.c +++ b/ggsn/ggsn.c @@ -726,13 +726,15 @@ static int cb_tun_ind(struct tun_t *tun, void *pack, unsigned len) struct ip6_hdr *ip6h = (struct ip6_hdr *)pack; struct ippool_t *pool; - if (iph->version == 4) { + switch (iph->version) { + case 4: if (len < sizeof(*iph) || len < 4*iph->ihl) return -1; dst.len = 4; dst.v4.s_addr = iph->daddr; pool = apn->v4.pool; - } else if (iph->version == 6) { + break; + case 6: /* Due to the fact that 3GPP requires an allocation of a * /64 prefix to each MS, we must instruct * ippool_getip() below to match only the leading /64 @@ -740,7 +742,8 @@ static int cb_tun_ind(struct tun_t *tun, void *pack, unsigned len) dst.len = 8; dst.v6 = ip6h->ip6_dst; pool = apn->v6.pool; - } else { + break; + default: LOGP(DTUN, LOGL_NOTICE, "non-IPv%u packet received from tun\n", iph->version); return -1; } |