include/linux/pim.h

   1 #ifndef __LINUX_PIM_H
   2 #define __LINUX_PIM_H
   3
   4 #include <asm/byteorder.h>
   5
   6 /* Message types - V1 */
   7 #define PIM_V1_VERSION          cpu_to_be32(0x10000000)
   8 #define PIM_V1_REGISTER         1
   9
  10 /* Message types - V2 */
  11 #define PIM_VERSION             2
  12 #define PIM_REGISTER            1
  13
  14 #define PIM_NULL_REGISTER       cpu_to_be32(0x40000000)
  15
  16 static inline bool ipmr_pimsm_enabled(void)
  17 {
  18         return IS_BUILTIN(CONFIG_IP_PIMSM_V1) || IS_BUILTIN(CONFIG_IP_PIMSM_V2);
  19 }
  20
  21 /* PIMv2 register message header layout (ietf-draft-idmr-pimvsm-v2-00.ps */
  22 struct pimreghdr
  23 {
  24         __u8    type;
  25         __u8    reserved;
  26         __be16  csum;
  27         __be32  flags;
  28 };
  29
  30 struct sk_buff;
  31 extern int pim_rcv_v1(struct sk_buff *);
  32 #endif