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wg: stricter userspace ipc parsing

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2017-08-02 21:07:25 +02:00
parent 1019175179
commit bc9494f8b6
1 changed files with 3 additions and 3 deletions
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6
src/ipc.c
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@ -314,13 +314,13 @@ static int userspace_get_device(struct wgdevice **out, const char *interface)
break; break;
*value++ = key[--line_len] = '\0'; *value++ = key[--line_len] = '\0';
if (!strcmp(key, "private_key")) { if (!peer && !strcmp(key, "private_key")) {
if (!key_from_hex(dev->private_key, value)) if (!key_from_hex(dev->private_key, value))
break; break;
curve25519_generate_public(dev->public_key, dev->private_key); curve25519_generate_public(dev->public_key, dev->private_key);
} else if (!strcmp(key, "listen_port")) } else if (!peer && !strcmp(key, "listen_port"))
dev->port = NUM(0xffffU); dev->port = NUM(0xffffU);
else if (!strcmp(key, "fwmark")) else if (!peer && !strcmp(key, "fwmark"))
dev->fwmark = NUM(0xffffffffU); dev->fwmark = NUM(0xffffffffU);
else if (!strcmp(key, "public_key")) { else if (!strcmp(key, "public_key")) {
peer = ADD(sizeof(struct wgpeer)); peer = ADD(sizeof(struct wgpeer));