pimd/pim_iface.h

   1 /*
   2  * PIM for Quagga
   3  * Copyright (C) 2008  Everton da Silva Marques
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; see the file COPYING; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  18  */
  19
  20 #ifndef PIM_IFACE_H
  21 #define PIM_IFACE_H
  22
  23 #include <zebra.h>
  24
  25 #include "if.h"
  26 #include "vty.h"
  27
  28 #include "pim_igmp.h"
  29 #include "pim_upstream.h"
  30
  31 #define PIM_IF_MASK_PIM                             (1 << 0)
  32 #define PIM_IF_MASK_IGMP                            (1 << 1)
  33 #define PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS          (1 << 2)
  34 #define PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION (1 << 3)
  35
  36 #define PIM_IF_IS_DELETED(ifp) ((ifp)->ifindex == IFINDEX_INTERNAL)
  37
  38 #define PIM_IF_TEST_PIM(options) (PIM_IF_MASK_PIM & (options))
  39 #define PIM_IF_TEST_IGMP(options) (PIM_IF_MASK_IGMP & (options))
  40 #define PIM_IF_TEST_IGMP_LISTEN_ALLROUTERS(options) (PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS & (options))
  41 #define PIM_IF_TEST_PIM_CAN_DISABLE_JOIN_SUPRESSION(options) (PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION & (options))
  42
  43 #define PIM_IF_DO_PIM(options) ((options) |= PIM_IF_MASK_PIM)
  44 #define PIM_IF_DO_IGMP(options) ((options) |= PIM_IF_MASK_IGMP)
  45 #define PIM_IF_DO_IGMP_LISTEN_ALLROUTERS(options) ((options) |= PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS)
  46 #define PIM_IF_DO_PIM_CAN_DISABLE_JOIN_SUPRESSION(options) ((options) |= PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION)
  47
  48 #define PIM_IF_DONT_PIM(options) ((options) &= ~PIM_IF_MASK_PIM)
  49 #define PIM_IF_DONT_IGMP(options) ((options) &= ~PIM_IF_MASK_IGMP)
  50 #define PIM_IF_DONT_IGMP_LISTEN_ALLROUTERS(options) ((options) &= ~PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS)
  51 #define PIM_IF_DONT_PIM_CAN_DISABLE_JOIN_SUPRESSION(options) ((options) &= ~PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION)
  52
  53 #define PIM_I_am_DR(pim_ifp) (pim_ifp)->pim_dr_addr.s_addr == (pim_ifp)->primary_address.s_addr
  54
  55 struct pim_iface_upstream_switch {
  56   struct in_addr address;
  57   struct list *us;
  58 };
  59
  60 enum pim_secondary_addr_flags {
  61   PIM_SEC_ADDRF_NONE = 0,
  62   PIM_SEC_ADDRF_STALE = (1 << 0)
  63 };
  64
  65 struct pim_secondary_addr {
  66   struct prefix addr;
  67   enum pim_secondary_addr_flags flags;
  68 };
  69
  70 struct pim_interface {
  71   uint32_t       options;                            /* bit vector */
  72   ifindex_t      mroute_vif_index;
  73   struct in_addr primary_address; /* remember addr to detect change */
  74   struct list    *sec_addr_list; /* list of struct pim_secondary_addr */
  75   struct in_addr update_source;  /* user can statically set the primary
  76                                   * address of the interface */
  77
  78   int          igmp_version;                                /* IGMP version */
  79   int          igmp_default_robustness_variable;            /* IGMPv3 QRV */
  80   int          igmp_default_query_interval;                 /* IGMPv3 secs between general queries */
  81   int          igmp_query_max_response_time_dsec;           /* IGMPv3 Max Response Time in dsecs for general queries */
  82   int          igmp_specific_query_max_response_time_dsec;  /* IGMPv3 Max Response Time in dsecs for specific queries */
  83   struct list *igmp_socket_list;                            /* list of struct igmp_sock */
  84   struct list *igmp_join_list;                              /* list of struct igmp_join */
  85
  86   int            pim_sock_fd;       /* PIM socket file descriptor */
  87   struct thread *t_pim_sock_read;   /* thread for reading PIM socket */
  88   int64_t        pim_sock_creation; /* timestamp of PIM socket creation */
  89
  90   struct thread *t_pim_hello_timer;
  91   int            pim_hello_period;
  92   int            pim_default_holdtime;
  93   int            pim_triggered_hello_delay;
  94   uint32_t       pim_generation_id;
  95   uint16_t       pim_propagation_delay_msec; /* config */
  96   uint16_t       pim_override_interval_msec; /* config */
  97   struct list   *pim_neighbor_list; /* list of struct pim_neighbor */
  98   struct list   *upstream_switch_list;
  99   struct list   *pim_ifchannel_list; /* list of struct pim_ifchannel */
 100   struct hash   *pim_ifchannel_hash;
 101
 102   /* neighbors without lan_delay */
 103   int            pim_number_of_nonlandelay_neighbors;
 104   uint16_t       pim_neighbors_highest_propagation_delay_msec;
 105   uint16_t       pim_neighbors_highest_override_interval_msec;
 106
 107   /* DR Election */
 108   int64_t        pim_dr_election_last; /* timestamp */
 109   int            pim_dr_election_count;
 110   int            pim_dr_election_changes;
 111   struct in_addr pim_dr_addr;
 112   uint32_t       pim_dr_priority;            /* config */
 113   int            pim_dr_num_nondrpri_neighbors; /* neighbors without dr_pri */
 114
 115   int64_t        pim_ifstat_start; /* start timestamp for stats */
 116   uint32_t       pim_ifstat_hello_sent;
 117   uint32_t       pim_ifstat_hello_sendfail;
 118   uint32_t       pim_ifstat_hello_recv;
 119   uint32_t       pim_ifstat_hello_recvfail;
 120   uint32_t       pim_ifstat_join_recv;
 121   uint32_t       pim_ifstat_join_send;
 122   uint32_t       pim_ifstat_prune_recv;
 123   uint32_t       pim_ifstat_prune_send;
 124   uint32_t       pim_ifstat_reg_recv;
 125   uint32_t       pim_ifstat_reg_send;
 126   uint32_t       pim_ifstat_reg_stop_recv;
 127   uint32_t       pim_ifstat_reg_stop_send;
 128   uint32_t       pim_ifstat_assert_recv;
 129   uint32_t       pim_ifstat_assert_send;
 130 };
 131
 132 extern struct interface *pim_regiface;
 133 extern struct list *pim_ifchannel_list;
 134 /*
 135   if default_holdtime is set (>= 0), use it;
 136   otherwise default_holdtime is 3.5 * hello_period
 137  */
 138 #define PIM_IF_DEFAULT_HOLDTIME(pim_ifp) \
 139   (((pim_ifp)->pim_default_holdtime < 0) ? \
 140   ((pim_ifp)->pim_hello_period * 7 / 2) : \
 141   ((pim_ifp)->pim_default_holdtime))
 142
 143 void pim_if_init(void);
 144 void pim_if_terminate (void);
 145
 146 struct pim_interface *pim_if_new(struct interface *ifp, int igmp, int pim);
 147 void                  pim_if_delete(struct interface *ifp);
 148 void pim_if_addr_add(struct connected *ifc);
 149 void pim_if_addr_del(struct connected *ifc, int force_prim_as_any);
 150 void pim_if_addr_add_all(struct interface *ifp);
 151 void pim_if_addr_del_all(struct interface *ifp);
 152 void pim_if_addr_del_all_igmp(struct interface *ifp);
 153 void pim_if_addr_del_all_pim(struct interface *ifp);
 154
 155 struct interface *pim_if_lookup_address_vrf (struct in_addr src, vrf_id_t vrf_id);
 156
 157 int pim_if_add_vif(struct interface *ifp);
 158 int pim_if_del_vif(struct interface *ifp);
 159 void pim_if_add_vif_all(void);
 160 void pim_if_del_vif_all(void);
 161
 162 struct interface *pim_if_find_by_vif_index(ifindex_t vif_index);
 163 int pim_if_find_vifindex_by_ifindex(ifindex_t ifindex);
 164
 165 int pim_if_lan_delay_enabled(struct interface *ifp);
 166 uint16_t pim_if_effective_propagation_delay_msec(struct interface *ifp);
 167 uint16_t pim_if_effective_override_interval_msec(struct interface *ifp);
 168 uint16_t pim_if_jp_override_interval_msec(struct interface *ifp);
 169 struct pim_neighbor *pim_if_find_neighbor(struct interface *ifp,
 170                                           struct in_addr addr);
 171
 172 long pim_if_t_suppressed_msec(struct interface *ifp);
 173 int pim_if_t_override_msec(struct interface *ifp);
 174
 175 struct in_addr pim_find_primary_addr(struct interface *ifp);
 176
 177 int pim_if_igmp_join_add(struct interface *ifp,
 178                          struct in_addr group_addr,
 179                          struct in_addr source_addr);
 180 int pim_if_igmp_join_del(struct interface *ifp,
 181                          struct in_addr group_addr,
 182                          struct in_addr source_addr);
 183
 184 void pim_if_update_could_assert(struct interface *ifp);
 185
 186 void pim_if_assert_on_neighbor_down(struct interface *ifp,
 187                                     struct in_addr neigh_addr);
 188
 189 void pim_if_rpf_interface_changed(struct interface *old_rpf_ifp,
 190                                   struct pim_upstream *up);
 191
 192 void pim_if_update_join_desired(struct pim_interface *pim_ifp);
 193
 194 void pim_if_update_assert_tracking_desired(struct interface *ifp);
 195
 196 void pim_if_create_pimreg(void);
 197
 198 int pim_if_connected_to_source (struct interface *ifp, struct in_addr src);
 199 int pim_update_source_set(struct interface *ifp, struct in_addr source);
 200
 201 #endif /* PIM_IFACE_H */