| 1 | /* |
| 2 | * netlink/genl/family.h Generic Netlink Family |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation version 2.1 |
| 7 | * of the License. |
| 8 | * |
| 9 | * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch> |
| 10 | */ |
| 11 | |
| 12 | #ifndef NETLINK_GENL_FAMILY_H_ |
| 13 | #define NETLINK_GENL_FAMILY_H_ |
| 14 | |
| 15 | #include <netlink/netlink.h> |
| 16 | #include <netlink/cache.h> |
| 17 | |
| 18 | #ifdef __cplusplus |
| 19 | extern "C" { |
| 20 | #endif |
| 21 | |
| 22 | /** @cond SKIP */ |
| 23 | #define FAMILY_ATTR_ID 0x01 |
| 24 | #define FAMILY_ATTR_NAME 0x02 |
| 25 | #define FAMILY_ATTR_VERSION 0x04 |
| 26 | #define FAMILY_ATTR_HDRSIZE 0x08 |
| 27 | #define FAMILY_ATTR_MAXATTR 0x10 |
| 28 | #define FAMILY_ATTR_OPS 0x20 |
| 29 | |
| 30 | |
| 31 | struct genl_family |
| 32 | { |
| 33 | NLHDR_COMMON |
| 34 | |
| 35 | uint16_t gf_id; |
| 36 | char gf_name[GENL_NAMSIZ]; |
| 37 | uint32_t gf_version; |
| 38 | uint32_t gf_hdrsize; |
| 39 | uint32_t gf_maxattr; |
| 40 | |
| 41 | struct nl_list_head gf_ops; |
| 42 | }; |
| 43 | |
| 44 | |
| 45 | extern struct genl_family * genl_family_alloc(void); |
| 46 | extern void genl_family_put(struct genl_family *); |
| 47 | |
| 48 | extern int genl_family_add_op(struct genl_family *, |
| 49 | int, int); |
| 50 | |
| 51 | /** |
| 52 | * @name Attributes |
| 53 | * @{ |
| 54 | */ |
| 55 | |
| 56 | static inline unsigned int genl_family_get_id(struct genl_family *family) |
| 57 | { |
| 58 | if (family->ce_mask & FAMILY_ATTR_ID) |
| 59 | return family->gf_id; |
| 60 | else |
| 61 | return GENL_ID_GENERATE; |
| 62 | } |
| 63 | |
| 64 | static inline void genl_family_set_id(struct genl_family *family, unsigned int id) |
| 65 | { |
| 66 | family->gf_id = id; |
| 67 | family->ce_mask |= FAMILY_ATTR_ID; |
| 68 | } |
| 69 | |
| 70 | static inline char *genl_family_get_name(struct genl_family *family) |
| 71 | { |
| 72 | if (family->ce_mask & FAMILY_ATTR_NAME) |
| 73 | return family->gf_name; |
| 74 | else |
| 75 | return NULL; |
| 76 | } |
| 77 | |
| 78 | static inline void genl_family_set_name(struct genl_family *family, const char *name) |
| 79 | { |
| 80 | strncpy(family->gf_name, name, GENL_NAMSIZ-1); |
| 81 | family->ce_mask |= FAMILY_ATTR_NAME; |
| 82 | } |
| 83 | |
| 84 | static inline uint8_t genl_family_get_version(struct genl_family *family) |
| 85 | { |
| 86 | if (family->ce_mask & FAMILY_ATTR_VERSION) |
| 87 | return family->gf_version; |
| 88 | else |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | static inline void genl_family_set_version(struct genl_family *family, uint8_t version) |
| 93 | { |
| 94 | family->gf_version = version; |
| 95 | family->ce_mask |= FAMILY_ATTR_VERSION; |
| 96 | } |
| 97 | |
| 98 | static inline uint32_t genl_family_get_hdrsize(struct genl_family *family) |
| 99 | { |
| 100 | if (family->ce_mask & FAMILY_ATTR_HDRSIZE) |
| 101 | return family->gf_hdrsize; |
| 102 | else |
| 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | static inline void genl_family_set_hdrsize(struct genl_family *family, uint32_t hdrsize) |
| 107 | { |
| 108 | family->gf_hdrsize = hdrsize; |
| 109 | family->ce_mask |= FAMILY_ATTR_HDRSIZE; |
| 110 | } |
| 111 | |
| 112 | static inline uint32_t genl_family_get_maxattr(struct genl_family *family) |
| 113 | { |
| 114 | if (family->ce_mask & FAMILY_ATTR_MAXATTR) |
| 115 | return family->gf_maxattr; |
| 116 | else |
| 117 | return family->gf_maxattr; |
| 118 | } |
| 119 | |
| 120 | static inline void genl_family_set_maxattr(struct genl_family *family, uint32_t maxattr) |
| 121 | { |
| 122 | family->gf_maxattr = maxattr; |
| 123 | family->ce_mask |= FAMILY_ATTR_MAXATTR; |
| 124 | } |
| 125 | |
| 126 | #ifdef __cplusplus |
| 127 | } |
| 128 | #endif |
| 129 | |
| 130 | #endif |
| 131 | |
