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authorSabrina Dubroca <sd@queasysnail.net>2022-09-27 17:45:33 +0200
committerSteffen Klassert <steffen.klassert@secunet.com>2022-09-29 07:18:00 +0200
commit6ee55320520e31f5dae637e928d5792352b22776 (patch)
tree6dcc22ae61a18048244696d464f7baf68b6aad10 /net/xfrm/xfrm_ipcomp.c
parent25ec92cd042ace0c109c3f6e5e6b634073414cc0 (diff)
xfrm: ipcomp: add extack to ipcomp{4,6}_init_state
And the shared helper ipcomp_init_state. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm/xfrm_ipcomp.c')
-rw-r--r--net/xfrm/xfrm_ipcomp.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index cb40ff0ff28d..656045a87606 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -325,18 +325,22 @@ void ipcomp_destroy(struct xfrm_state *x)
}
EXPORT_SYMBOL_GPL(ipcomp_destroy);
-int ipcomp_init_state(struct xfrm_state *x)
+int ipcomp_init_state(struct xfrm_state *x, struct netlink_ext_ack *extack)
{
int err;
struct ipcomp_data *ipcd;
struct xfrm_algo_desc *calg_desc;
err = -EINVAL;
- if (!x->calg)
+ if (!x->calg) {
+ NL_SET_ERR_MSG(extack, "Missing required compression algorithm");
goto out;
+ }
- if (x->encap)
+ if (x->encap) {
+ NL_SET_ERR_MSG(extack, "IPComp is not compatible with encapsulation");
goto out;
+ }
err = -ENOMEM;
ipcd = kzalloc(sizeof(*ipcd), GFP_KERNEL);