package/libs/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         struct nl_list_head     gf_mc_grps;
  43 };
  44
  45
  46 extern struct genl_family *     genl_family_alloc(void);
  47 extern void                     genl_family_put(struct genl_family *);
  48
  49 extern int                      genl_family_add_op(struct genl_family *,
  50                                                    int, int);
  51 extern int                      genl_family_add_grp(struct genl_family *,
  52                                         uint32_t , const char *);
  53
  54
  55 /**
  56  * @name Attributes
  57  * @{
  58  */
  59
  60 static inline unsigned int genl_family_get_id(struct genl_family *family)
  61 {
  62         if (family->ce_mask & FAMILY_ATTR_ID)
  63                 return family->gf_id;
  64         else
  65                 return 0;
  66 }
  67
  68 static inline void genl_family_set_id(struct genl_family *family, unsigned int id)
  69 {
  70         family->gf_id = id;
  71         family->ce_mask |= FAMILY_ATTR_ID;
  72 }
  73
  74 static inline char *genl_family_get_name(struct genl_family *family)
  75 {
  76         if (family->ce_mask & FAMILY_ATTR_NAME)
  77                 return family->gf_name;
  78         else
  79                 return NULL;
  80 }
  81
  82 static inline void genl_family_set_name(struct genl_family *family, const char *name)
  83 {
  84         strncpy(family->gf_name, name, GENL_NAMSIZ-1);
  85         family->ce_mask |= FAMILY_ATTR_NAME;
  86 }
  87
  88 static inline uint8_t genl_family_get_version(struct genl_family *family)
  89 {
  90         if (family->ce_mask & FAMILY_ATTR_VERSION)
  91                 return family->gf_version;
  92         else
  93                 return 0;
  94 }
  95
  96 static inline void genl_family_set_version(struct genl_family *family, uint8_t version)
  97 {
  98         family->gf_version = version;
  99         family->ce_mask |= FAMILY_ATTR_VERSION;
 100 }
 101
 102 static inline uint32_t genl_family_get_hdrsize(struct genl_family *family)
 103 {
 104         if (family->ce_mask & FAMILY_ATTR_HDRSIZE)
 105                 return family->gf_hdrsize;
 106         else
 107                 return 0;
 108 }
 109
 110 static inline void genl_family_set_hdrsize(struct genl_family *family, uint32_t hdrsize)
 111 {
 112         family->gf_hdrsize = hdrsize;
 113         family->ce_mask |= FAMILY_ATTR_HDRSIZE;
 114 }
 115
 116 static inline uint32_t genl_family_get_maxattr(struct genl_family *family)
 117 {
 118         if (family->ce_mask & FAMILY_ATTR_MAXATTR)
 119                 return family->gf_maxattr;
 120         else
 121                 return family->gf_maxattr;
 122 }
 123
 124 static inline void genl_family_set_maxattr(struct genl_family *family, uint32_t maxattr)
 125 {
 126         family->gf_maxattr = maxattr;
 127         family->ce_mask |= FAMILY_ATTR_MAXATTR;
 128 }
 129
 130 #ifdef __cplusplus
 131 }
 132 #endif
 133
 134 #endif