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Add clear error for kernel not supporting IPv6 

Make it clear to the user, that if adding a tunnel fails with kernel GTP
and IPv6: the reason is that the kernel doesn't support IPv6 yet.

Related: OS#6096
Change-Id: I1d3c8cbb51212c91136292347dad9529a5c58a31
This commit is contained in:
Oliver Smith 2024-03-04 10:33:09 +01:00
parent ea6c02ac1f
commit 19a506b705
1 changed files with 2 additions and 0 deletions
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2
ggsn/ggsn.c
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@ -534,6 +534,8 @@ int create_context_ind(struct pdp_t *pdp)
if (apn->cfg.gtpu_mode == APN_GTPU_MODE_KERNEL_GTP) {
if (gtp_kernel_tunnel_add(pdp, apn->tun.cfg.dev_name) < 0) {
LOGPPDP(LOGL_ERROR, pdp, "Cannot add tunnel to kernel: %s\n", strerror(errno));
if (addrv6 && errno == EINVAL)
LOGPPDP(LOGL_ERROR, pdp, "Maybe your kernel does not support GTP-U with IPv6 yet?\n");
gtp_create_context_resp(gsn, pdp, GTPCAUSE_SYS_FAIL);
return 0;
}