diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/netlink.h | 6 | ||||
| -rw-r--r-- | include/uapi/linux/genetlink.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/netlink.h | 103 |
3 files changed, 111 insertions, 0 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h index 557b67f1db99..c0411f14fb53 100644 --- a/include/net/netlink.h +++ b/include/net/netlink.h @@ -1933,4 +1933,10 @@ void nla_get_range_unsigned(const struct nla_policy *pt, void nla_get_range_signed(const struct nla_policy *pt, struct netlink_range_validation_signed *range); +int netlink_policy_dump_start(const struct nla_policy *policy, + unsigned int maxtype, + unsigned long *state); +bool netlink_policy_dump_loop(unsigned long *state); +int netlink_policy_dump_write(struct sk_buff *skb, unsigned long state); + #endif diff --git a/include/uapi/linux/genetlink.h b/include/uapi/linux/genetlink.h index 877f7fa95466..9c0636ec2286 100644 --- a/include/uapi/linux/genetlink.h +++ b/include/uapi/linux/genetlink.h @@ -48,6 +48,7 @@ enum { CTRL_CMD_NEWMCAST_GRP, CTRL_CMD_DELMCAST_GRP, CTRL_CMD_GETMCAST_GRP, /* unused */ + CTRL_CMD_GETPOLICY, __CTRL_CMD_MAX, }; @@ -62,6 +63,7 @@ enum { CTRL_ATTR_MAXATTR, CTRL_ATTR_OPS, CTRL_ATTR_MCAST_GROUPS, + CTRL_ATTR_POLICY, __CTRL_ATTR_MAX, }; diff --git a/include/uapi/linux/netlink.h b/include/uapi/linux/netlink.h index 0a4d73317759..eac8a6a648ea 100644 --- a/include/uapi/linux/netlink.h +++ b/include/uapi/linux/netlink.h @@ -249,4 +249,107 @@ struct nla_bitfield32 { __u32 selector; }; +/* + * policy descriptions - it's specific to each family how this is used + * Normally, it should be retrieved via a dump inside another attribute + * specifying where it applies. + */ + +/** + * enum netlink_attribute_type - type of an attribute + * @NL_ATTR_TYPE_INVALID: unused + * @NL_ATTR_TYPE_FLAG: flag attribute (present/not present) + * @NL_ATTR_TYPE_U8: 8-bit unsigned attribute + * @NL_ATTR_TYPE_U16: 16-bit unsigned attribute + * @NL_ATTR_TYPE_U32: 32-bit unsigned attribute + * @NL_ATTR_TYPE_U64: 64-bit unsigned attribute + * @NL_ATTR_TYPE_S8: 8-bit signed attribute + * @NL_ATTR_TYPE_S16: 16-bit signed attribute + * @NL_ATTR_TYPE_S32: 32-bit signed attribute + * @NL_ATTR_TYPE_S64: 64-bit signed attribute + * @NL_ATTR_TYPE_BINARY: binary data, min/max length may be specified + * @NL_ATTR_TYPE_STRING: string, min/max length may be specified + * @NL_ATTR_TYPE_NUL_STRING: NUL-terminated string, + * min/max length may be specified + * @NL_ATTR_TYPE_NESTED: nested, i.e. the content of this attribute + * consists of sub-attributes. The nested policy and maxtype + * inside may be specified. + * @NL_ATTR_TYPE_NESTED_ARRAY: nested array, i.e. the content of this + * attribute contains sub-attributes whose type is irrelevant + * (just used to separate the array entries) and each such array + * entry has attributes again, the policy for those inner ones + * and the corresponding maxtype may be specified. + * @NL_ATTR_TYPE_BITFIELD32: &struct nla_bitfield32 attribute + */ +enum netlink_attribute_type { + NL_ATTR_TYPE_INVALID, + + NL_ATTR_TYPE_FLAG, + + NL_ATTR_TYPE_U8, + NL_ATTR_TYPE_U16, + NL_ATTR_TYPE_U32, + NL_ATTR_TYPE_U64, + + NL_ATTR_TYPE_S8, + NL_ATTR_TYPE_S16, + NL_ATTR_TYPE_S32, + NL_ATTR_TYPE_S64, + + NL_ATTR_TYPE_BINARY, + NL_ATTR_TYPE_STRING, + NL_ATTR_TYPE_NUL_STRING, + + NL_ATTR_TYPE_NESTED, + NL_ATTR_TYPE_NESTED_ARRAY, + + NL_ATTR_TYPE_BITFIELD32, +}; + +/** + * enum netlink_policy_type_attr - policy type attributes + * @NL_POLICY_TYPE_ATTR_UNSPEC: unused + * @NL_POLICY_TYPE_ATTR_TYPE: type of the attribute, + * &enum netlink_attribute_type (U32) + * @NL_POLICY_TYPE_ATTR_MIN_VALUE_S: minimum value for signed + * integers (S64) + * @NL_POLICY_TYPE_ATTR_MAX_VALUE_S: maximum value for signed + * integers (S64) + * @NL_POLICY_TYPE_ATTR_MIN_VALUE_U: minimum value for unsigned + * integers (U64) + * @NL_POLICY_TYPE_ATTR_MAX_VALUE_U: maximum value for unsigned + * integers (U64) + * @NL_POLICY_TYPE_ATTR_MIN_LENGTH: minimum length for binary + * attributes, no minimum if not given (U32) + * @NL_POLICY_TYPE_ATTR_MAX_LENGTH: maximum length for binary + * attributes, no maximum if not given (U32) + * @NL_POLICY_TYPE_ATTR_POLICY_IDX: sub policy for nested and + * nested array types (U32) + * @NL_POLICY_TYPE_ATTR_POLICY_MAXTYPE: maximum sub policy + * attribute for nested and nested array types, this can + * in theory be < the size of the policy pointed to by + * the index, if limited inside the nesting (U32) + * @NL_POLICY_TYPE_ATTR_BITFIELD32_MASK: valid mask for the + * bitfield32 type (U32) + * @NL_POLICY_TYPE_ATTR_PAD: pad attribute for 64-bit alignment + */ +enum netlink_policy_type_attr { + NL_POLICY_TYPE_ATTR_UNSPEC, + NL_POLICY_TYPE_ATTR_TYPE, + NL_POLICY_TYPE_ATTR_MIN_VALUE_S, + NL_POLICY_TYPE_ATTR_MAX_VALUE_S, + NL_POLICY_TYPE_ATTR_MIN_VALUE_U, + NL_POLICY_TYPE_ATTR_MAX_VALUE_U, + NL_POLICY_TYPE_ATTR_MIN_LENGTH, + NL_POLICY_TYPE_ATTR_MAX_LENGTH, + NL_POLICY_TYPE_ATTR_POLICY_IDX, + NL_POLICY_TYPE_ATTR_POLICY_MAXTYPE, + NL_POLICY_TYPE_ATTR_BITFIELD32_MASK, + NL_POLICY_TYPE_ATTR_PAD, + + /* keep last */ + __NL_POLICY_TYPE_ATTR_MAX, + NL_POLICY_TYPE_ATTR_MAX = __NL_POLICY_TYPE_ATTR_MAX - 1 +}; + #endif /* _UAPI__LINUX_NETLINK_H */ |