UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

xfrm: clone XFRMA_SEC_CTX in xfrm_do_migrate 

XFRMA_SEC_CTX was not cloned from the old to the new.
Migrate this attribute during XFRMA_MSG_MIGRATE

v1->v2:
 - return -ENOMEM on error
v2->v3:
 - fix return type to int

Fixes: 80c9abaabf ("[XFRM]: Extension for dynamic update of endpoint address(es)")
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Antony Antony 2020-09-04 08:50:11 +02:00 committed by Steffen Klassert
parent 91a46c6d1b
commit 7aa05d3047
1 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
net/xfrm/xfrm_state.c
View File

@ -1441,6 +1441,30 @@ out:
EXPORT_SYMBOL(xfrm_state_add);
#ifdef CONFIG_XFRM_MIGRATE
static inline int clone_security(struct xfrm_state *x, struct xfrm_sec_ctx *security)
{
struct xfrm_user_sec_ctx *uctx;
int size = sizeof(*uctx) + security->ctx_len;
int err;
uctx = kmalloc(size, GFP_KERNEL);
if (!uctx)
return -ENOMEM;
uctx->exttype = XFRMA_SEC_CTX;
uctx->len = size;
uctx->ctx_doi = security->ctx_doi;
uctx->ctx_alg = security->ctx_alg;
uctx->ctx_len = security->ctx_len;
memcpy(uctx + 1, security->ctx_str, security->ctx_len);
err = security_xfrm_state_alloc(x, uctx);
kfree(uctx);
if (err)
return err;
return 0;
}
static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig,
struct xfrm_encap_tmpl *encap)
{
@ -1497,6 +1521,10 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig,
goto error;
}
if (orig->security)
if (clone_security(x, orig->security))
goto error;
if (orig->coaddr) {
x->coaddr = kmemdup(orig->coaddr, sizeof(*x->coaddr),
GFP_KERNEL);