diff options
author | Harald Welte <laforge@gnumonks.org> | 2017-11-08 14:09:51 +0900 |
---|---|---|
committer | Harald Welte <laforge@gnumonks.org> | 2017-11-13 23:59:40 +0900 |
commit | 490782d18e6bbab8b5f4f8dcef4d4f5ab310af6a (patch) | |
tree | 205f5704574ed9006a6cfd57258e188fd1adb965 /ggsn | |
parent | e3c5918aeea8639c8c9a36047fd078ddc4eab4ef (diff) |
gtp-kernel: Re-add support for kernel GTP-U acceleration
When we branched off osmo-ggsn from the old openggsn code base, the
support for kernel-gtp got temporarily removed. This patch
re-introduces support for handling the GTP-U plane in the Linux kernel
by means of libgtpnl + the kernel GTP-U driver.
This only works for IPv4 at the moment, until the kernel GTP-U code
gains IPv6 support.
Kernel GTP currently also is restricted to a single APN per GSN.
Change-Id: Ieb1bc1bd0d51d41947f0abd6ebbc2e5d102592d6
Diffstat (limited to 'ggsn')
-rw-r--r-- | ggsn/ggsn.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/ggsn/ggsn.c b/ggsn/ggsn.c index 4af044e..2937b04 100644 --- a/ggsn/ggsn.c +++ b/ggsn/ggsn.c @@ -259,12 +259,16 @@ int apn_start(struct apn_ctx *apn) apn->tun.tun->priv = apn; break; case APN_GTPU_MODE_KERNEL_GTP: - LOGPAPN(LOGL_ERROR, apn, "FIXME: Kernel GTP\n"); -#if 0 + if (apn->cfg.apn_type_mask & (APN_TYPE_IPv6|APN_TYPE_IPv4v6)) { + LOGPAPN(LOGL_ERROR, apn, "Kernel GTP currently supports only IPv4\n"); + apn_stop(apn, false); + return -1; + } + LOGPAPN(LOGL_ERROR, apn, "Setting up Kernel GTP\n"); /* use GTP kernel module for data packet encapsulation */ - if (gtp_kernel_init(gsn, &net.v4, prefixlen, net_arg) < 0) - goto err; -#endif + if (gtp_kernel_init(apn->ggsn->gsn, &apn->v4.cfg.ifconfig_prefix, apn->tun.cfg.ipup_script) < 0) { + return -1; + } break; default: LOGPAPN(LOGL_ERROR, apn, "Unknown GTPU Mode %d\n", apn->cfg.gtpu_mode); |