diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/compat/compat.h | 8 | ||||
-rw-r--r-- | src/netlink.c | 21 | ||||
-rw-r--r-- | src/uapi/wireguard.h | 14 |
3 files changed, 29 insertions, 14 deletions
diff --git a/src/compat/compat.h b/src/compat/compat.h index e8fa1ab..436fe44 100644 --- a/src/compat/compat.h +++ b/src/compat/compat.h @@ -821,6 +821,14 @@ static inline void skb_mark_not_on_list(struct sk_buff *skb) } #endif +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0) +#define NLA_EXACT_LEN NLA_UNSPEC +#endif +#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) +#define NLA_MIN_LEN NLA_UNSPEC +#define COMPAT_CANNOT_INDIVIDUAL_NETLINK_OPS_POLICY +#endif + /* https://github.com/ClangBuiltLinux/linux/issues/7 */ #if defined( __clang__) && (!defined(CONFIG_CLANG_VERSION) || CONFIG_CLANG_VERSION < 80000) #include <linux/bug.h> diff --git a/src/netlink.c b/src/netlink.c index b179b31..ae33197 100644 --- a/src/netlink.c +++ b/src/netlink.c @@ -19,8 +19,8 @@ static struct genl_family genl_family; static const struct nla_policy device_policy[WGDEVICE_A_MAX + 1] = { [WGDEVICE_A_IFINDEX] = { .type = NLA_U32 }, [WGDEVICE_A_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 }, - [WGDEVICE_A_PRIVATE_KEY] = { .len = NOISE_PUBLIC_KEY_LEN }, - [WGDEVICE_A_PUBLIC_KEY] = { .len = NOISE_PUBLIC_KEY_LEN }, + [WGDEVICE_A_PRIVATE_KEY] = { .type = NLA_EXACT_LEN, .len = NOISE_PUBLIC_KEY_LEN }, + [WGDEVICE_A_PUBLIC_KEY] = { .type = NLA_EXACT_LEN, .len = NOISE_PUBLIC_KEY_LEN }, [WGDEVICE_A_FLAGS] = { .type = NLA_U32 }, [WGDEVICE_A_LISTEN_PORT] = { .type = NLA_U16 }, [WGDEVICE_A_FWMARK] = { .type = NLA_U32 }, @@ -28,12 +28,12 @@ static const struct nla_policy device_policy[WGDEVICE_A_MAX + 1] = { }; static const struct nla_policy peer_policy[WGPEER_A_MAX + 1] = { - [WGPEER_A_PUBLIC_KEY] = { .len = NOISE_PUBLIC_KEY_LEN }, - [WGPEER_A_PRESHARED_KEY] = { .len = NOISE_SYMMETRIC_KEY_LEN }, + [WGPEER_A_PUBLIC_KEY] = { .type = NLA_EXACT_LEN, .len = NOISE_PUBLIC_KEY_LEN }, + [WGPEER_A_PRESHARED_KEY] = { .type = NLA_EXACT_LEN, .len = NOISE_SYMMETRIC_KEY_LEN }, [WGPEER_A_FLAGS] = { .type = NLA_U32 }, - [WGPEER_A_ENDPOINT] = { .len = sizeof(struct sockaddr) }, + [WGPEER_A_ENDPOINT] = { .type = NLA_MIN_LEN, .len = sizeof(struct sockaddr) }, [WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL] = { .type = NLA_U16 }, - [WGPEER_A_LAST_HANDSHAKE_TIME] = { .len = sizeof(struct __kernel_timespec) }, + [WGPEER_A_LAST_HANDSHAKE_TIME] = { .type = NLA_EXACT_LEN, .len = sizeof(struct __kernel_timespec) }, [WGPEER_A_RX_BYTES] = { .type = NLA_U64 }, [WGPEER_A_TX_BYTES] = { .type = NLA_U64 }, [WGPEER_A_ALLOWEDIPS] = { .type = NLA_NESTED }, @@ -42,7 +42,7 @@ static const struct nla_policy peer_policy[WGPEER_A_MAX + 1] = { static const struct nla_policy allowedip_policy[WGALLOWEDIP_A_MAX + 1] = { [WGALLOWEDIP_A_FAMILY] = { .type = NLA_U16 }, - [WGALLOWEDIP_A_IPADDR] = { .len = sizeof(struct in_addr) }, + [WGALLOWEDIP_A_IPADDR] = { .type = NLA_MIN_LEN, .len = sizeof(struct in_addr) }, [WGALLOWEDIP_A_CIDR_MASK] = { .type = NLA_U8 } }; @@ -596,12 +596,16 @@ struct genl_ops genl_ops[] = { #endif .dumpit = wg_get_device_dump, .done = wg_get_device_done, +#ifdef COMPAT_CANNOT_INDIVIDUAL_NETLINK_OPS_POLICY .policy = device_policy, +#endif .flags = GENL_UNS_ADMIN_PERM }, { .cmd = WG_CMD_SET_DEVICE, .doit = wg_set_device, +#ifdef COMPAT_CANNOT_INDIVIDUAL_NETLINK_OPS_POLICY .policy = device_policy, +#endif .flags = GENL_UNS_ADMIN_PERM } }; @@ -618,6 +622,9 @@ __ro_after_init = { .version = WG_GENL_VERSION, .maxattr = WGDEVICE_A_MAX, .module = THIS_MODULE, +#ifndef COMPAT_CANNOT_INDIVIDUAL_NETLINK_OPS_POLICY + .policy = device_policy, +#endif .netnsok = true }; diff --git a/src/uapi/wireguard.h b/src/uapi/wireguard.h index 071ce41..912f216 100644 --- a/src/uapi/wireguard.h +++ b/src/uapi/wireguard.h @@ -25,23 +25,23 @@ * * WGDEVICE_A_IFINDEX: NLA_U32 * WGDEVICE_A_IFNAME: NLA_NUL_STRING, maxlen IFNAMESIZ - 1 - * WGDEVICE_A_PRIVATE_KEY: len WG_KEY_LEN - * WGDEVICE_A_PUBLIC_KEY: len WG_KEY_LEN + * WGDEVICE_A_PRIVATE_KEY: NLA_EXACT_LEN, len WG_KEY_LEN + * WGDEVICE_A_PUBLIC_KEY: NLA_EXACT_LEN, len WG_KEY_LEN * WGDEVICE_A_LISTEN_PORT: NLA_U16 * WGDEVICE_A_FWMARK: NLA_U32 * WGDEVICE_A_PEERS: NLA_NESTED * 0: NLA_NESTED - * WGPEER_A_PUBLIC_KEY: len WG_KEY_LEN - * WGPEER_A_PRESHARED_KEY: len WG_KEY_LEN - * WGPEER_A_ENDPOINT: struct sockaddr_in or struct sockaddr_in6 + * WGPEER_A_PUBLIC_KEY: NLA_EXACT_LEN, len WG_KEY_LEN + * WGPEER_A_PRESHARED_KEY: NLA_EXACT_LEN, len WG_KEY_LEN + * WGPEER_A_ENDPOINT: NLA_MIN_LEN(struct sockaddr), struct sockaddr_in or struct sockaddr_in6 * WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL: NLA_U16 - * WGPEER_A_LAST_HANDSHAKE_TIME: struct __kernel_timespec + * WGPEER_A_LAST_HANDSHAKE_TIME: NLA_EXACT_LEN, struct __kernel_timespec * WGPEER_A_RX_BYTES: NLA_U64 * WGPEER_A_TX_BYTES: NLA_U64 * WGPEER_A_ALLOWEDIPS: NLA_NESTED * 0: NLA_NESTED * WGALLOWEDIP_A_FAMILY: NLA_U16 - * WGALLOWEDIP_A_IPADDR: struct in_addr or struct in6_addr + * WGALLOWEDIP_A_IPADDR: NLA_MIN_LEN(struct in_addr), struct in_addr or struct in6_addr * WGALLOWEDIP_A_CIDR_MASK: NLA_U8 * 0: NLA_NESTED * ... |