diff options
Diffstat (limited to 'source4')
| -rw-r--r-- | source4/wrepl_server/wrepl_apply_records.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/source4/wrepl_server/wrepl_apply_records.c b/source4/wrepl_server/wrepl_apply_records.c index 37c4ce23ba..a87f06d28e 100644 --- a/source4/wrepl_server/wrepl_apply_records.c +++ b/source4/wrepl_server/wrepl_apply_records.c @@ -35,9 +35,261 @@ #include "libcli/composite/composite.h" #include "libcli/wrepl/winsrepl.h" +enum _R_ACTION { + R_DO_ADD = 1, + R_DO_REPLACE = 2, + R_NOT_REPLACE = 3, + R_DO_MERGE = 4 +}; + +static const char *_R_ACTION_enum_string(enum _R_ACTION action) +{ + switch (action) { + case R_DO_ADD: return "ADD"; + case R_DO_REPLACE: return "REPLACE"; + case R_NOT_REPLACE: return "NOT_REPLACE"; + case R_DO_MERGE: return "MERGE"; + } + + return "enum _R_ACTION unknown"; +} + +#define R_IS_ACTIVE(r) ((r)->state == WREPL_STATE_ACTIVE) +#define R_IS_RELEASED(r) ((r)->state == WREPL_STATE_RELEASED) +#define R_IS_TOMBSTONE(r) ((r)->state == WREPL_STATE_TOMBSTONE) + +#define R_IS_UNIQUE(r) ((r)->type == WREPL_TYPE_UNIQUE) +#define R_IS_GROUP(r) ((r)->type == WREPL_TYPE_GROUP) +#define R_IS_SGROUP(r) ((r)->type == WREPL_TYPE_SGROUP) +#define R_IS_MHOMED(r) ((r)->type == WREPL_TYPE_MHOMED) + +static enum _R_ACTION replace_same_owner(struct winsdb_record *r1, struct wrepl_name *r2) +{ + /* TODO: we need to look closer at how special groups are handled */ + + /* REPLACE */ + return R_DO_REPLACE; +} + +/* +UNIQUE,ACTIVE vs. UNIQUE,ACTIVE with different ip(s) => REPLACE +UNIQUE,ACTIVE vs. UNIQUE,TOMBSTONE with different ip(s) => NOT REPLACE +UNIQUE,RELEASED vs. UNIQUE,ACTIVE with different ip(s) => REPLACE +UNIQUE,RELEASED vs. UNIQUE,TOMBSTONE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. UNIQUE,ACTIVE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. UNIQUE,TOMBSTONE with different ip(s) => REPLACE +UNIQUE,ACTIVE vs. GROUP,ACTIVE with different ip(s) => REPLACE +UNIQUE,ACTIVE vs. GROUP,TOMBSTONE with same ip(s) => NOT REPLACE +UNIQUE,RELEASED vs. GROUP,ACTIVE with different ip(s) => REPLACE +UNIQUE,RELEASED vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. GROUP,ACTIVE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +UNIQUE,ACTIVE vs. SGROUP,ACTIVE with same ip(s) => NOT REPLACE +UNIQUE,ACTIVE vs. SGROUP,TOMBSTONE with same ip(s) => NOT REPLACE +UNIQUE,RELEASED vs. SGROUP,ACTIVE with different ip(s) => REPLACE +UNIQUE,RELEASED vs. SGROUP,TOMBSTONE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. SGROUP,ACTIVE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. SGROUP,TOMBSTONE with different ip(s) => REPLACE +UNIQUE,ACTIVE vs. MHOMED,ACTIVE with different ip(s) => REPLACE +UNIQUE,ACTIVE vs. MHOMED,TOMBSTONE with same ip(s) => NOT REPLACE +UNIQUE,RELEASED vs. MHOMED,ACTIVE with different ip(s) => REPLACE +UNIQUE,RELEASED vs. MHOMED,TOMBSTONE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. MHOMED,ACTIVE with different ip(s) => REPLACE +UNIQUE,TOMBSTONE vs. MHOMED,TOMBSTONE with different ip(s) => REPLACE +*/ +static enum _R_ACTION replace_replica_replica_unique_vs_X(struct winsdb_record *r1, struct wrepl_name *r2) +{ + if (!R_IS_ACTIVE(r1)) { + /* REPLACE */ + return R_DO_REPLACE; + } + + if (!R_IS_SGROUP(r2) && R_IS_ACTIVE(r2)) { + /* REPLACE */ + return R_DO_REPLACE; + } + + /* NOT REPLACE */ + return R_NOT_REPLACE; +} + +/* +GROUP,ACTIVE vs. UNIQUE,ACTIVE with same ip(s) => NOT REPLACE +GROUP,ACTIVE vs. UNIQUE,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,RELEASED vs. UNIQUE,ACTIVE with same ip(s) => NOT REPLACE +GROUP,RELEASED vs. UNIQUE,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,TOMBSTONE vs. UNIQUE,ACTIVE with same ip(s) => NOT REPLACE +GROUP,TOMBSTONE vs. UNIQUE,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,ACTIVE vs. GROUP,ACTIVE with same ip(s) => NOT REPLACE +GROUP,ACTIVE vs. GROUP,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,RELEASED vs. GROUP,ACTIVE with different ip(s) => REPLACE +GROUP,RELEASED vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +GROUP,TOMBSTONE vs. GROUP,ACTIVE with different ip(s) => REPLACE +GROUP,TOMBSTONE vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +GROUP,ACTIVE vs. SGROUP,ACTIVE with same ip(s) => NOT REPLACE +GROUP,ACTIVE vs. SGROUP,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,RELEASED vs. SGROUP,ACTIVE with different ip(s) => REPLACE +GROUP,RELEASED vs. SGROUP,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,TOMBSTONE vs. SGROUP,ACTIVE with different ip(s) => REPLACE +GROUP,TOMBSTONE vs. SGROUP,TOMBSTONE with different ip(s) => REPLACE +GROUP,ACTIVE vs. MHOMED,ACTIVE with same ip(s) => NOT REPLACE +GROUP,ACTIVE vs. MHOMED,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,RELEASED vs. MHOMED,ACTIVE with same ip(s) => NOT REPLACE +GROUP,RELEASED vs. MHOMED,TOMBSTONE with same ip(s) => NOT REPLACE +GROUP,TOMBSTONE vs. MHOMED,ACTIVE with different ip(s) => REPLACE +GROUP,TOMBSTONE vs. MHOMED,TOMBSTONE with different ip(s) => REPLACE +*/ +static enum _R_ACTION replace_replica_replica_group_vs_X(struct winsdb_record *r1, struct wrepl_name *r2) +{ + if (!R_IS_ACTIVE(r1) && R_IS_GROUP(r2)) { + /* REPLACE */ + return R_DO_REPLACE; + } + + if (R_IS_TOMBSTONE(r1) && !R_IS_UNIQUE(r2)) { + /* REPLACE */ + return R_DO_REPLACE; + } + + /* NOT REPLACE */ + return R_NOT_REPLACE; +} + +/* +SGROUP,ACTIVE vs. UNIQUE,ACTIVE with same ip(s) => NOT REPLACE +SGROUP,ACTIVE vs. UNIQUE,TOMBSTONE with same ip(s) => NOT REPLACE +SGROUP,RELEASED vs. UNIQUE,ACTIVE with different ip(s) => REPLACE +SGROUP,RELEASED vs. UNIQUE,TOMBSTONE with different ip(s) => REPLACE +SGROUP,TOMBSTONE vs. UNIQUE,ACTIVE with different ip(s) => REPLACE +SGROUP,TOMBSTONE vs. UNIQUE,TOMBSTONE with different ip(s) => REPLACE +SGROUP,ACTIVE vs. GROUP,ACTIVE with same ip(s) => NOT REPLACE +SGROUP,ACTIVE vs. GROUP,TOMBSTONE with same ip(s) => NOT REPLACE +SGROUP,RELEASED vs. GROUP,ACTIVE with different ip(s) => REPLACE +SGROUP,RELEASED vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +SGROUP,TOMBSTONE vs. GROUP,ACTIVE with different ip(s) => REPLACE +SGROUP,TOMBSTONE vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +SGROUP,ACTIVE vs. MHOMED,ACTIVE with same ip(s) => NOT REPLACE +SGROUP,ACTIVE vs. MHOMED,TOMBSTONE with same ip(s) => NOT REPLACE +SGROUP,RELEASED vs. MHOMED,ACTIVE with different ip(s) => REPLACE +SGROUP,RELEASED vs. MHOMED,TOMBSTONE with different ip(s) => REPLACE +SGROUP,TOMBSTONE vs. MHOMED,ACTIVE with different ip(s) => REPLACE +SGROUP,TOMBSTONE vs. MHOMED,TOMBSTONE with different ip(s) => REPLACE +*/ +static enum _R_ACTION replace_replica_replica_sgroup_vs_X(struct winsdb_record *r1, struct wrepl_name *r2) +{ + if (R_IS_SGROUP(r2)) { + /* not handled here: MERGE */ + return R_DO_MERGE; + } + + if (!R_IS_ACTIVE(r1)) { + /* REPLACE */ + return R_DO_REPLACE; + } + + /* NOT REPLACE */ + return R_NOT_REPLACE; +} + +/* +MHOMED,ACTIVE vs. GROUP,ACTIVE with different ip(s) => REPLACE +MHOMED,ACTIVE vs. GROUP,TOMBSTONE with same ip(s) => NOT REPLACE +MHOMED,RELEASED vs. GROUP,ACTIVE with different ip(s) => REPLACE +MHOMED,RELEASED vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +MHOMED,TOMBSTONE vs. GROUP,ACTIVE with different ip(s) => REPLACE +MHOMED,TOMBSTONE vs. GROUP,TOMBSTONE with different ip(s) => REPLACE +MHOMED,ACTIVE vs. SGROUP,ACTIVE with same ip(s) => NOT REPLACE +MHOMED,ACTIVE vs. SGROUP,TOMBSTONE with same ip(s) => NOT REPLACE +MHOMED,RELEASED vs. SGROUP,ACTIVE with different ip(s) => REPLACE +MHOMED,RELEASED vs. SGROUP,TOMBSTONE with different ip(s) => REPLACE +MHOMED,TOMBSTONE vs. SGROUP,ACTIVE with different ip(s) => REPLACE +MHOMED,TOMBSTONE vs. SGROUP,TOMBSTONE with different ip(s) => REPLACE +*/ +static enum _R_ACTION replace_replica_replica_mhomed_vs_X(struct winsdb_record *r1, struct wrepl_name *r2) +{ + if (R_IS_UNIQUE(r2) || R_IS_MHOMED(r2)) { + /* not handled here: MERGE */ + return R_DO_MERGE; + } + + if (!R_IS_ACTIVE(r1)) { + /* REPLACE */ + return R_DO_REPLACE; + } + + if (R_IS_GROUP(r2) && R_IS_ACTIVE(r2)) { + /* REPLACE */ + return R_DO_REPLACE; + } + + /* NOT REPLACE */ + return R_NOT_REPLACE; +} + +static NTSTATUS wreplsrv_apply_one_record(struct wreplsrv_partner *partner, + TALLOC_CTX *mem_ctx, + struct wrepl_wins_owner *owner, + struct wrepl_name *name) +{ + NTSTATUS status; + struct winsdb_record *rec = NULL; + enum _R_ACTION action = R_NOT_REPLACE; + BOOL same_owner = False; + BOOL replica_vs_replica = False; + BOOL local_vs_replica = False; + + status = winsdb_lookup(partner->service->wins_db, + &name->name, mem_ctx, &rec); + if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_NOT_FOUND, status)) { + rec = NULL; + action = R_DO_ADD; + status = NT_STATUS_OK; + } + NT_STATUS_NOT_OK_RETURN(status); + + if (rec) { + if (strcmp(rec->wins_owner, WINSDB_OWNER_LOCAL)==0) { + local_vs_replica = True; + } else if (strcmp(rec->wins_owner, owner->address)==0) { + same_owner = True; + } else { + replica_vs_replica = True; + } + } + + if (rec && same_owner) { + action = replace_same_owner(rec, name); + } else if (rec && replica_vs_replica) { + switch (rec->type) { + case WREPL_TYPE_UNIQUE: + action = replace_replica_replica_unique_vs_X(rec, name); + break; + case WREPL_TYPE_GROUP: + action = replace_replica_replica_group_vs_X(rec, name); + break; + case WREPL_TYPE_SGROUP: + action = replace_replica_replica_sgroup_vs_X(rec, name); + break; + case WREPL_TYPE_MHOMED: + action = replace_replica_replica_mhomed_vs_X(rec, name); + break; + } + } else if (rec && local_vs_replica) { + /* TODO: */ + } + + /* TODO: !!! */ + DEBUG(0,("TODO: apply record %s: %s\n", + nbt_name_string(mem_ctx, &name->name), _R_ACTION_enum_string(action))); + + return NT_STATUS_OK; +} + NTSTATUS wreplsrv_apply_records(struct wreplsrv_partner *partner, struct wreplsrv_pull_names_io *names_io) { + TALLOC_CTX *tmp_mem = talloc_new(partner); NTSTATUS status; + uint32_t i; /* TODO: ! */ DEBUG(0,("TODO: apply records count[%u]:owner[%s]:min[%llu]:max[%llu]:partner[%s]\n", @@ -45,6 +297,13 @@ NTSTATUS wreplsrv_apply_records(struct wreplsrv_partner *partner, struct wreplsr names_io->in.owner.min_version, names_io->in.owner.max_version, partner->address)); + for (i=0; i < names_io->out.num_names; i++) { + status = wreplsrv_apply_one_record(partner, tmp_mem, + &names_io->in.owner, + &names_io->out.names[i]); + NT_STATUS_NOT_OK_RETURN(status); + } + status = wreplsrv_add_table(partner->service, partner->service, &partner->service->table, |