4 #include <trust_router/tr_name.h>
5 #include <trp_internal.h>
6 #include <trp_ptable.h>
9 static int trp_peer_destructor(void *object)
11 TRP_PEER *peer=talloc_get_type_abort(object, TRP_PEER);
12 if (peer->gssname!=NULL)
13 tr_free_name(peer->gssname);
16 TRP_PEER *trp_peer_new(TALLOC_CTX *memctx)
18 TRP_PEER *peer=talloc(memctx, TRP_PEER);
24 peer->linkcost=TRP_METRIC_INFINITY;
25 peer->last_conn_attempt=(struct timespec){0,0};
26 talloc_set_destructor((void *)peer, trp_peer_destructor);
31 void trp_peer_free(TRP_PEER *peer)
36 static TRP_PEER *trp_peer_tail(TRP_PEER *peer)
38 while (peer->next!=NULL) {
44 char *trp_peer_get_server(TRP_PEER *peer)
49 /* copies input; on error, peer->gssname will be null */
50 void trp_peer_set_server(TRP_PEER *peer, char *server)
52 peer->server=talloc_strdup(peer, server); /* will be null on error */
55 void trp_peer_set_gssname(TRP_PEER *peer, TR_NAME *gssname)
57 peer->gssname=gssname;
60 /* get the peer gssname, caller must not free the result */
61 TR_NAME *trp_peer_get_gssname(TRP_PEER *peer)
66 /* get a copy of the peer gssname, caller must free via tr_free_name() */
67 TR_NAME *trp_peer_dup_gssname(TRP_PEER *peer)
69 return tr_dup_name(peer->gssname);
72 unsigned int trp_peer_get_port(TRP_PEER *peer)
77 void trp_peer_set_port(TRP_PEER *peer, unsigned int port)
82 unsigned int trp_peer_get_linkcost(TRP_PEER *peer)
85 return peer->linkcost;
90 void trp_peer_set_linkcost(TRP_PEER *peer, unsigned int linkcost)
92 if ((linkcost>TRP_METRIC_INFINITY) && (linkcost!=TRP_METRIC_INVALID)) {
93 /* This indicates a programming error, but probably means an already infinite metric
94 * was (incorrectly) incremented. Issue a warning and proceed with an infinite metric. */
95 tr_warning("trp_peer_set_linkcost: link cost > infinity encountered, setting to infinity");
96 linkcost=TRP_METRIC_INFINITY;
98 peer->linkcost=linkcost;
101 struct timespec *trp_peer_get_last_conn_attempt(TRP_PEER *peer)
103 return &(peer->last_conn_attempt);
106 void trp_peer_set_last_conn_attempt(TRP_PEER *peer, struct timespec *time)
108 peer->last_conn_attempt=*time;
111 TRP_PTABLE *trp_ptable_new(TALLOC_CTX *memctx)
113 TRP_PTABLE *ptbl=talloc(memctx, TRP_PTABLE);
120 void trp_ptable_free(TRP_PTABLE *ptbl)
125 TRP_RC trp_ptable_add(TRP_PTABLE *ptbl, TRP_PEER *newpeer)
127 if (ptbl->head==NULL) {
130 trp_peer_tail(ptbl->head)->next=newpeer;
131 talloc_steal(ptbl, newpeer);
136 /* peer pointer is invalid after successful removal. Does nothing and returns
137 * TRP_ERROR if peer is not in the list. */
138 TRP_RC trp_ptable_remove(TRP_PTABLE *ptbl, TRP_PEER *peer)
142 if (ptbl->head!=NULL) {
143 if (ptbl->head==peer) {
144 /* special case for removing head of list */
146 ptbl->head=ptbl->head->next; /* advance the head */
149 for (cur=ptbl->head->next; cur!=NULL; last=cur,cur=cur->next) {
152 last->next=cur->next;
161 TRP_PEER *trp_ptable_find(TRP_PTABLE *ptbl, TR_NAME *gssname)
163 TRP_PEER *cur=ptbl->head;
164 while ((cur!=NULL) && (0 != tr_name_cmp(trp_peer_get_gssname(cur), gssname)))
169 char *trp_peer_to_str(TALLOC_CTX *memctx, TRP_PEER *peer, const char *sep)
173 return talloc_asprintf(memctx,
175 peer->server, peer->port, sep,
179 /* this is horribly inefficient but should be ok for small peer tables */
180 char *trp_ptable_to_str(TALLOC_CTX *memctx, TRP_PTABLE *ptbl, const char *sep, const char *lineterm)
182 TALLOC_CTX *tmpctx=talloc_new(NULL);
184 char *result=talloc_strdup(tmpctx, "");
189 /* this leaves intermediate result strings in the tmpctx context, we'll free these when
191 for (peer=ptbl->head; peer!=NULL; peer=peer->next)
192 result=talloc_asprintf(tmpctx, "%s%s%s", result, lineterm, trp_peer_to_str(tmpctx, peer, sep));
194 talloc_steal(memctx, result); /* hand result over to caller */
195 talloc_free(tmpctx); /* free detritus */
199 TRP_PTABLE_ITER *trp_ptable_iter_new(TALLOC_CTX *mem_ctx)
201 TRP_PTABLE_ITER *iter=talloc(mem_ctx, TRP_PTABLE_ITER);
206 TRP_PEER *trp_ptable_iter_first(TRP_PTABLE_ITER *iter, TRP_PTABLE *ptbl)
212 TRP_PEER *trp_ptable_iter_next(TRP_PTABLE_ITER *iter)
218 void trp_ptable_iter_free(TRP_PTABLE_ITER *iter)