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| author | Antony Antony <antony.antony@secunet.com> | 2020-09-04 08:50:11 +0200 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2020-09-07 12:45:22 +0200 |
| commit | 7aa05d304785204703a67a6aa7f1db402889a172 (patch) | |
| tree | 1c5627f4a26152b3dd2aaecd3e0944828e01964f /net | |
| parent | 91a46c6d1b4fcbfa4773df9421b8ad3e58088101 (diff) | |
| download | linux-7aa05d304785204703a67a6aa7f1db402889a172.tar.bz2 | |
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: 80c9abaabf42 ("[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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/xfrm/xfrm_state.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 3a000f289dcd..5e5ed8108498 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -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); |