package/libnl-tiny/src/include/netlink/genl/family.h

   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