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 #include "vrf.h"
  28 #include "zclient.h"
  29 #include "ferr.h"
  30
  31 #include "pim_igmp.h"
  32 #include "pim_upstream.h"
  33 #include "pim_instance.h"
  34 #include "bfd.h"
  35 #include "pim_str.h"
  36
  37 #define PIM_IF_MASK_PIM                             (1 << 0)
  38 #define PIM_IF_MASK_IGMP                            (1 << 1)
  39 #define PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS          (1 << 2)
  40 #define PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPPRESSION (1 << 3)
  41
  42 #define PIM_IF_IS_DELETED(ifp) ((ifp)->ifindex == IFINDEX_INTERNAL)
  43
  44 #define PIM_IF_TEST_PIM(options) (PIM_IF_MASK_PIM & (options))
  45 #define PIM_IF_TEST_IGMP(options) (PIM_IF_MASK_IGMP & (options))
  46 #define PIM_IF_TEST_IGMP_LISTEN_ALLROUTERS(options) (PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS & (options))
  47 #define PIM_IF_TEST_PIM_CAN_DISABLE_JOIN_SUPPRESSION(options)                  \
  48         (PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPPRESSION & (options))
  49
  50 #define PIM_IF_DO_PIM(options) ((options) |= PIM_IF_MASK_PIM)
  51 #define PIM_IF_DO_IGMP(options) ((options) |= PIM_IF_MASK_IGMP)
  52 #define PIM_IF_DO_IGMP_LISTEN_ALLROUTERS(options) ((options) |= PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS)
  53 #define PIM_IF_DO_PIM_CAN_DISABLE_JOIN_SUPPRESSION(options)                    \
  54         ((options) |= PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPPRESSION)
  55
  56 #define PIM_IF_DONT_PIM(options) ((options) &= ~PIM_IF_MASK_PIM)
  57 #define PIM_IF_DONT_IGMP(options) ((options) &= ~PIM_IF_MASK_IGMP)
  58 #define PIM_IF_DONT_IGMP_LISTEN_ALLROUTERS(options) ((options) &= ~PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS)
  59 #define PIM_IF_DONT_PIM_CAN_DISABLE_JOIN_SUPPRESSION(options)                  \
  60         ((options) &= ~PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPPRESSION)
  61
  62 #define PIM_I_am_DR(pim_ifp) (pim_ifp)->pim_dr_addr.s_addr == (pim_ifp)->primary_address.s_addr
  63 #define PIM_I_am_DualActive(pim_ifp) (pim_ifp)->activeactive == true
  64
  65 /* Macros for interface flags */
  66
  67 /*
  68  * PIM needs to know if hello is required to send before other PIM messages
  69  * like Join, prune, assert would go out
  70  */
  71 #define PIM_IF_FLAG_HELLO_SENT (1 << 0)
  72
  73 #define PIM_IF_FLAG_TEST_HELLO_SENT(flags) ((flags)&PIM_IF_FLAG_HELLO_SENT)
  74
  75 #define PIM_IF_FLAG_SET_HELLO_SENT(flags) ((flags) |= PIM_IF_FLAG_HELLO_SENT)
  76
  77 #define PIM_IF_FLAG_UNSET_HELLO_SENT(flags) ((flags) &= ~PIM_IF_FLAG_HELLO_SENT)
  78
  79 struct pim_iface_upstream_switch {
  80         pim_addr address;
  81         struct list *us;
  82 };
  83
  84 enum pim_secondary_addr_flags {
  85         PIM_SEC_ADDRF_NONE = 0,
  86         PIM_SEC_ADDRF_STALE = (1 << 0)
  87 };
  88
  89 struct pim_secondary_addr {
  90         struct prefix addr;
  91         enum pim_secondary_addr_flags flags;
  92 };
  93
  94 struct pim_interface {
  95         uint32_t options; /* bit vector */
  96         ifindex_t mroute_vif_index;
  97         struct pim_instance *pim;
  98         pim_addr primary_address;       /* remember addr to detect change */
  99         struct list *sec_addr_list;     /* list of struct pim_secondary_addr */
 100         pim_addr update_source;         /* user can statically set the primary
 101                                          * address of the interface */
 102
 103         int igmp_version;                    /* IGMP version */
 104         int gm_default_robustness_variable;  /* IGMP or MLD QRV */
 105         int gm_default_query_interval;       /* IGMP or MLD secs between general
 106                                                   queries */
 107         int gm_query_max_response_time_dsec; /* IGMP or MLD Max Response Time in
 108                                                   dsecs for general queries */
 109         int gm_specific_query_max_response_time_dsec; /* IGMP or MLD Max
 110                                                          Response Time in dsecs
 111                                                          called as last member
 112                                                          query interval, defines
 113                                                          the maximum response
 114                                                          time advertised in IGMP
 115                                                          group-specific
 116                                                          queries */
 117         int gm_last_member_query_count;               /* IGMP or MLD last member
 118                                                          query count
 119                                                        */
 120         struct list *gm_socket_list; /* list of struct IGMP or MLD sock */
 121         struct list *gm_join_list;   /* list of struct IGMP or MLD join */
 122         struct list *gm_group_list;  /* list of struct IGMP or MLD group */
 123         struct hash *gm_group_hash;
 124
 125         int pim_sock_fd;                /* PIM socket file descriptor */
 126         struct thread *t_pim_sock_read; /* thread for reading PIM socket */
 127         int64_t pim_sock_creation;      /* timestamp of PIM socket creation */
 128
 129         struct thread *t_pim_hello_timer;
 130         int pim_hello_period;
 131         int pim_default_holdtime;
 132         int pim_triggered_hello_delay;
 133         uint32_t pim_generation_id;
 134         uint16_t pim_propagation_delay_msec; /* config */
 135         uint16_t pim_override_interval_msec; /* config */
 136         struct list *pim_neighbor_list;      /* list of struct pim_neighbor */
 137         struct list *upstream_switch_list;
 138         struct pim_ifchannel_rb ifchannel_rb;
 139
 140         /* neighbors without lan_delay */
 141         int pim_number_of_nonlandelay_neighbors;
 142         uint16_t pim_neighbors_highest_propagation_delay_msec;
 143         uint16_t pim_neighbors_highest_override_interval_msec;
 144
 145         /* DR Election */
 146         int64_t pim_dr_election_last; /* timestamp */
 147         int pim_dr_election_count;
 148         int pim_dr_election_changes;
 149         pim_addr pim_dr_addr;
 150         uint32_t pim_dr_priority;         /* config */
 151         int pim_dr_num_nondrpri_neighbors; /* neighbors without dr_pri */
 152
 153         /* boundary prefix-list */
 154         char *boundary_oil_plist;
 155
 156         /* Turn on Active-Active for this interface */
 157         bool activeactive;
 158         bool am_i_dr;
 159
 160         int64_t pim_ifstat_start; /* start timestamp for stats */
 161         uint64_t pim_ifstat_bsm_rx;
 162         uint64_t pim_ifstat_bsm_tx;
 163         uint32_t pim_ifstat_hello_sent;
 164         uint32_t pim_ifstat_hello_sendfail;
 165         uint32_t pim_ifstat_hello_recv;
 166         uint32_t pim_ifstat_hello_recvfail;
 167         uint32_t pim_ifstat_join_recv;
 168         uint32_t pim_ifstat_join_send;
 169         uint32_t pim_ifstat_prune_recv;
 170         uint32_t pim_ifstat_prune_send;
 171         uint32_t pim_ifstat_reg_recv;
 172         uint32_t pim_ifstat_reg_send;
 173         uint32_t pim_ifstat_reg_stop_recv;
 174         uint32_t pim_ifstat_reg_stop_send;
 175         uint32_t pim_ifstat_assert_recv;
 176         uint32_t pim_ifstat_assert_send;
 177         uint32_t pim_ifstat_bsm_cfg_miss;
 178         uint32_t pim_ifstat_ucast_bsm_cfg_miss;
 179         uint32_t pim_ifstat_bsm_invalid_sz;
 180         uint8_t flags;
 181         bool bsm_enable; /* bsm processing enable */
 182         bool ucast_bsm_accept; /* ucast bsm processing */
 183
 184         struct {
 185                 bool enabled;
 186                 uint32_t min_rx;
 187                 uint32_t min_tx;
 188                 uint8_t detection_multiplier;
 189                 char *profile;
 190         } bfd_config;
 191 };
 192
 193 /*
 194  * if default_holdtime is set (>= 0), use it;
 195  * otherwise default_holdtime is 3.5 * hello_period
 196  */
 197 #define PIM_IF_DEFAULT_HOLDTIME(pim_ifp)                                       \
 198         (((pim_ifp)->pim_default_holdtime < 0)                                 \
 199                  ? ((pim_ifp)->pim_hello_period * 7 / 2)                       \
 200                  : ((pim_ifp)->pim_default_holdtime))
 201
 202 void pim_if_init(struct pim_instance *pim);
 203 void pim_if_terminate(struct pim_instance *pim);
 204
 205 struct pim_interface *pim_if_new(struct interface *ifp, bool igmp, bool pim,
 206                                  bool ispimreg, bool is_vxlan_term);
 207 void pim_if_delete(struct interface *ifp);
 208 void pim_if_addr_add(struct connected *ifc);
 209 void pim_if_addr_del(struct connected *ifc, int force_prim_as_any);
 210 void pim_if_addr_add_all(struct interface *ifp);
 211 void pim_if_addr_del_all(struct interface *ifp);
 212 void pim_if_addr_del_all_igmp(struct interface *ifp);
 213
 214 int pim_if_add_vif(struct interface *ifp, bool ispimreg, bool is_vxlan_term);
 215 int pim_if_del_vif(struct interface *ifp);
 216 void pim_if_add_vif_all(struct pim_instance *pim);
 217 void pim_if_del_vif_all(struct pim_instance *pim);
 218
 219 struct interface *pim_if_find_by_vif_index(struct pim_instance *pim,
 220                                            ifindex_t vif_index);
 221 int pim_if_find_vifindex_by_ifindex(struct pim_instance *pim,
 222                                     ifindex_t ifindex);
 223
 224 int pim_if_lan_delay_enabled(struct interface *ifp);
 225 uint16_t pim_if_effective_propagation_delay_msec(struct interface *ifp);
 226 uint16_t pim_if_effective_override_interval_msec(struct interface *ifp);
 227 uint16_t pim_if_jp_override_interval_msec(struct interface *ifp);
 228 struct pim_neighbor *pim_if_find_neighbor(struct interface *ifp,
 229                                           struct in_addr addr);
 230
 231 long pim_if_t_suppressed_msec(struct interface *ifp);
 232 int pim_if_t_override_msec(struct interface *ifp);
 233
 234 struct in_addr pim_find_primary_addr(struct interface *ifp);
 235
 236 ferr_r pim_if_igmp_join_add(struct interface *ifp, struct in_addr group_addr,
 237                             struct in_addr source_addr);
 238 int pim_if_igmp_join_del(struct interface *ifp, struct in_addr group_addr,
 239                          struct in_addr source_addr);
 240
 241 void pim_if_update_could_assert(struct interface *ifp);
 242
 243 void pim_if_assert_on_neighbor_down(struct interface *ifp,
 244                                     struct in_addr neigh_addr);
 245
 246 void pim_if_rpf_interface_changed(struct interface *old_rpf_ifp,
 247                                   struct pim_upstream *up);
 248
 249 void pim_if_update_join_desired(struct pim_interface *pim_ifp);
 250
 251 void pim_if_update_assert_tracking_desired(struct interface *ifp);
 252
 253 void pim_if_create_pimreg(struct pim_instance *pim);
 254
 255 struct prefix *pim_if_connected_to_source(struct interface *ifp, struct in_addr src);
 256 int pim_update_source_set(struct interface *ifp, struct in_addr source);
 257
 258 bool pim_if_is_vrf_device(struct interface *ifp);
 259
 260 int pim_if_ifchannel_count(struct pim_interface *pim_ifp);
 261
 262 void pim_iface_init(void);
 263
 264 #endif /* PIM_IFACE_H */