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-rw-r--r--net/mptcp/pm_netlink.c191
1 files changed, 127 insertions, 64 deletions
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 9661f3812682..fd4e843505e5 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -48,6 +48,60 @@ struct pm_nl_pernet {
#define MPTCP_PM_ADDR_MAX 8
#define ADD_ADDR_RETRANS_MAX 3
+static
+const struct nla_policy mptcp_pm_address_nl_policy[MPTCP_PM_ADDR_ATTR_IF_IDX + 1] = {
+ [MPTCP_PM_ADDR_ATTR_FAMILY] = { .type = NLA_U16, },
+ [MPTCP_PM_ADDR_ATTR_ID] = { .type = NLA_U8, },
+ [MPTCP_PM_ADDR_ATTR_ADDR4] = { .type = NLA_U32, },
+ [MPTCP_PM_ADDR_ATTR_ADDR6] = NLA_POLICY_EXACT_LEN(16),
+ [MPTCP_PM_ADDR_ATTR_PORT] = { .type = NLA_U16, },
+ [MPTCP_PM_ADDR_ATTR_FLAGS] = { .type = NLA_U32, },
+ [MPTCP_PM_ADDR_ATTR_IF_IDX] = { .type = NLA_S32, },
+};
+
+/* MPTCP_PM_CMD_ADD_ADDR / DEL / GET / FLUSH - do */
+static
+const struct nla_policy mptcp_pm_endpoint_nl_policy[MPTCP_PM_ENDPOINT_ADDR + 1] = {
+ [MPTCP_PM_ENDPOINT_ADDR] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+};
+
+/* MPTCP_PM_CMD_SET_LIMITS - do */
+static
+const struct nla_policy mptcp_pm_set_limits_nl_policy[MPTCP_PM_ATTR_SUBFLOWS + 1] = {
+ [MPTCP_PM_ATTR_RCV_ADD_ADDRS] = { .type = NLA_U32, },
+ [MPTCP_PM_ATTR_SUBFLOWS] = { .type = NLA_U32, },
+};
+
+/* MPTCP_PM_CMD_SET_FLAGS - do */
+static
+const struct nla_policy mptcp_pm_set_flags_nl_policy[MPTCP_PM_ATTR_ADDR_REMOTE + 1] = {
+ [MPTCP_PM_ATTR_ADDR] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+ [MPTCP_PM_ATTR_TOKEN] = { .type = NLA_U32, },
+ [MPTCP_PM_ATTR_ADDR_REMOTE] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+};
+
+/* MPTCP_PM_CMD_ANNOUNCE - do */
+static
+const struct nla_policy mptcp_pm_announce_nl_policy[MPTCP_PM_ATTR_TOKEN + 1] = {
+ [MPTCP_PM_ATTR_ADDR] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+ [MPTCP_PM_ATTR_TOKEN] = { .type = NLA_U32, },
+};
+
+/* MPTCP_PM_CMD_REMOVE - do */
+static
+const struct nla_policy mptcp_pm_remove_nl_policy[MPTCP_PM_ATTR_LOC_ID + 1] = {
+ [MPTCP_PM_ATTR_TOKEN] = { .type = NLA_U32, },
+ [MPTCP_PM_ATTR_LOC_ID] = { .type = NLA_U8, },
+};
+
+/* MPTCP_PM_CMD_SUBFLOW_CREATE / DESTROY - do */
+static
+const struct nla_policy mptcp_pm_subflow_create_nl_policy[MPTCP_PM_ATTR_ADDR_REMOTE + 1] = {
+ [MPTCP_PM_ATTR_ADDR] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+ [MPTCP_PM_ATTR_TOKEN] = { .type = NLA_U32, },
+ [MPTCP_PM_ATTR_ADDR_REMOTE] = NLA_POLICY_NESTED(mptcp_pm_address_nl_policy),
+};
+
static struct pm_nl_pernet *pm_nl_get_pernet(const struct net *net)
{
return net_generic(net, pm_nl_pernet_id);
@@ -1104,29 +1158,6 @@ static const struct genl_multicast_group mptcp_pm_mcgrps[] = {
},
};
-static const struct nla_policy
-mptcp_pm_addr_policy[MPTCP_PM_ADDR_ATTR_MAX + 1] = {
- [MPTCP_PM_ADDR_ATTR_FAMILY] = { .type = NLA_U16, },
- [MPTCP_PM_ADDR_ATTR_ID] = { .type = NLA_U8, },
- [MPTCP_PM_ADDR_ATTR_ADDR4] = { .type = NLA_U32, },
- [MPTCP_PM_ADDR_ATTR_ADDR6] =
- NLA_POLICY_EXACT_LEN(sizeof(struct in6_addr)),
- [MPTCP_PM_ADDR_ATTR_PORT] = { .type = NLA_U16 },
- [MPTCP_PM_ADDR_ATTR_FLAGS] = { .type = NLA_U32 },
- [MPTCP_PM_ADDR_ATTR_IF_IDX] = { .type = NLA_S32 },
-};
-
-static const struct nla_policy mptcp_pm_policy[MPTCP_PM_ATTR_MAX + 1] = {
- [MPTCP_PM_ATTR_ADDR] =
- NLA_POLICY_NESTED(mptcp_pm_addr_policy),
- [MPTCP_PM_ATTR_RCV_ADD_ADDRS] = { .type = NLA_U32, },
- [MPTCP_PM_ATTR_SUBFLOWS] = { .type = NLA_U32, },
- [MPTCP_PM_ATTR_TOKEN] = { .type = NLA_U32, },
- [MPTCP_PM_ATTR_LOC_ID] = { .type = NLA_U8, },
- [MPTCP_PM_ATTR_ADDR_REMOTE] =
- NLA_POLICY_NESTED(mptcp_pm_addr_policy),
-};
-
void mptcp_pm_nl_subflow_chk_stale(const struct mptcp_sock *msk, struct sock *ssk)
{
struct mptcp_subflow_context *iter, *subflow = mptcp_subflow_ctx(ssk);
@@ -1188,7 +1219,7 @@ static int mptcp_pm_parse_pm_addr_attr(struct nlattr *tb[],
/* no validation needed - was already done via nested policy */
err = nla_parse_nested_deprecated(tb, MPTCP_PM_ADDR_ATTR_MAX, attr,
- mptcp_pm_addr_policy, info->extack);
+ mptcp_pm_address_nl_policy, info->extack);
if (err)
return err;
@@ -1305,7 +1336,7 @@ next:
static int mptcp_nl_cmd_add_addr(struct sk_buff *skb, struct genl_info *info)
{
- struct nlattr *attr = info->attrs[MPTCP_PM_ATTR_ADDR];
+ struct nlattr *attr = info->attrs[MPTCP_PM_ENDPOINT_ADDR];
struct pm_nl_pernet *pernet = genl_info_pm_nl(info);
struct mptcp_pm_addr_entry addr, *entry;
int ret;
@@ -1486,7 +1517,7 @@ next:
static int mptcp_nl_cmd_del_addr(struct sk_buff *skb, struct genl_info *info)
{
- struct nlattr *attr = info->attrs[MPTCP_PM_ATTR_ADDR];
+ struct nlattr *attr = info->attrs[MPTCP_PM_ENDPOINT_ADDR];
struct pm_nl_pernet *pernet = genl_info_pm_nl(info);
struct mptcp_pm_addr_entry addr, *entry;
unsigned int addr_max;
@@ -1677,7 +1708,7 @@ nla_put_failure:
static int mptcp_nl_cmd_get_addr(struct sk_buff *skb, struct genl_info *info)
{
- struct nlattr *attr = info->attrs[MPTCP_PM_ATTR_ADDR];
+ struct nlattr *attr = info->attrs[MPTCP_PM_ENDPOINT_ADDR];
struct pm_nl_pernet *pernet = genl_info_pm_nl(info);
struct mptcp_pm_addr_entry addr, *entry;
struct sk_buff *msg;
@@ -2283,72 +2314,104 @@ nla_put_failure:
nlmsg_free(skb);
}
-static const struct genl_small_ops mptcp_pm_ops[] = {
+static const struct genl_ops mptcp_pm_ops[] = {
{
- .cmd = MPTCP_PM_CMD_ADD_ADDR,
- .doit = mptcp_nl_cmd_add_addr,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_ADD_ADDR,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_add_addr,
+ .policy = mptcp_pm_endpoint_nl_policy,
+ .maxattr = MPTCP_PM_ENDPOINT_ADDR,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_DEL_ADDR,
- .doit = mptcp_nl_cmd_del_addr,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_DEL_ADDR,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_del_addr,
+ .policy = mptcp_pm_endpoint_nl_policy,
+ .maxattr = MPTCP_PM_ENDPOINT_ADDR,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_FLUSH_ADDRS,
- .doit = mptcp_nl_cmd_flush_addrs,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_GET_ADDR,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_get_addr,
+ .dumpit = mptcp_nl_cmd_dump_addrs,
+ .policy = mptcp_pm_endpoint_nl_policy,
+ .maxattr = MPTCP_PM_ENDPOINT_ADDR,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_GET_ADDR,
- .doit = mptcp_nl_cmd_get_addr,
- .dumpit = mptcp_nl_cmd_dump_addrs,
+ .cmd = MPTCP_PM_CMD_FLUSH_ADDRS,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_flush_addrs,
+ .policy = mptcp_pm_endpoint_nl_policy,
+ .maxattr = MPTCP_PM_ENDPOINT_ADDR,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_SET_LIMITS,
- .doit = mptcp_nl_cmd_set_limits,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_SET_LIMITS,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_set_limits,
+ .policy = mptcp_pm_set_limits_nl_policy,
+ .maxattr = MPTCP_PM_ATTR_SUBFLOWS,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_GET_LIMITS,
- .doit = mptcp_nl_cmd_get_limits,
+ .cmd = MPTCP_PM_CMD_GET_LIMITS,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_get_limits,
+ .policy = mptcp_pm_set_limits_nl_policy,
+ .maxattr = MPTCP_PM_ATTR_SUBFLOWS,
},
{
- .cmd = MPTCP_PM_CMD_SET_FLAGS,
- .doit = mptcp_nl_cmd_set_flags,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_SET_FLAGS,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_set_flags,
+ .policy = mptcp_pm_set_flags_nl_policy,
+ .maxattr = MPTCP_PM_ATTR_ADDR_REMOTE,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_ANNOUNCE,
- .doit = mptcp_nl_cmd_announce,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_ANNOUNCE,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_announce,
+ .policy = mptcp_pm_announce_nl_policy,
+ .maxattr = MPTCP_PM_ATTR_TOKEN,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_REMOVE,
- .doit = mptcp_nl_cmd_remove,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_REMOVE,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_remove,
+ .policy = mptcp_pm_remove_nl_policy,
+ .maxattr = MPTCP_PM_ATTR_LOC_ID,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_SUBFLOW_CREATE,
- .doit = mptcp_nl_cmd_sf_create,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_SUBFLOW_CREATE,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_sf_create,
+ .policy = mptcp_pm_subflow_create_nl_policy,
+ .maxattr = MPTCP_PM_ATTR_ADDR_REMOTE,
+ .flags = GENL_UNS_ADMIN_PERM,
},
{
- .cmd = MPTCP_PM_CMD_SUBFLOW_DESTROY,
- .doit = mptcp_nl_cmd_sf_destroy,
- .flags = GENL_UNS_ADMIN_PERM,
+ .cmd = MPTCP_PM_CMD_SUBFLOW_DESTROY,
+ .validate = GENL_DONT_VALIDATE_STRICT,
+ .doit = mptcp_nl_cmd_sf_destroy,
+ .policy = mptcp_pm_subflow_create_nl_policy,
+ .maxattr = MPTCP_PM_ATTR_ADDR_REMOTE,
+ .flags = GENL_UNS_ADMIN_PERM,
},
};
static struct genl_family mptcp_genl_family __ro_after_init = {
.name = MPTCP_PM_NAME,
.version = MPTCP_PM_VER,
- .maxattr = MPTCP_PM_ATTR_MAX,
- .policy = mptcp_pm_policy,
.netnsok = true,
.module = THIS_MODULE,
- .small_ops = mptcp_pm_ops,
- .n_small_ops = ARRAY_SIZE(mptcp_pm_ops),
+ .ops = mptcp_pm_ops,
+ .n_ops = ARRAY_SIZE(mptcp_pm_ops),
.resv_start_op = MPTCP_PM_CMD_SUBFLOW_DESTROY + 1,
.mcgrps = mptcp_pm_mcgrps,
.n_mcgrps = ARRAY_SIZE(mptcp_pm_mcgrps),
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-10 21:48:44 +0300