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->servicename!=NULL)
13 tr_free_name(peer->servicename);
14 if (peer->gssname!=NULL)
15 tr_free_name(peer->gssname);
18 TRP_PEER *trp_peer_new(TALLOC_CTX *memctx)
20 TRP_PEER *peer=talloc(memctx, TRP_PEER);
24 peer->servicename=NULL;
27 peer->linkcost=TRP_LINKCOST_DEFAULT;
28 peer->last_conn_attempt=(struct timespec){0,0};
29 talloc_set_destructor((void *)peer, trp_peer_destructor);
34 void trp_peer_free(TRP_PEER *peer)
39 static TRP_PEER *trp_peer_tail(TRP_PEER *peer)
41 while (peer->next!=NULL) {
47 char *trp_peer_get_server(TRP_PEER *peer)
52 static void trp_peer_set_servicename(TRP_PEER *peer, const char *server)
55 if (peer->servicename !=NULL)
56 tr_free_name(peer->servicename);
59 name=talloc_asprintf(NULL, "trustrouter/%s", server);
62 peer->servicename=tr_new_name(name);
65 peer->servicename=NULL;
69 /* copies input; on error, peer->gssname will be null */
70 void trp_peer_set_server(TRP_PEER *peer, char *server)
72 peer->server=talloc_strdup(peer, server); /* will be null on error */
73 trp_peer_set_servicename(peer, server);
76 void trp_peer_set_gssname(TRP_PEER *peer, TR_NAME *gssname)
78 peer->gssname=gssname;
81 /* get the peer gssname, caller must not free the result */
82 TR_NAME *trp_peer_get_gssname(TRP_PEER *peer)
87 /* get a copy of the peer gssname, caller must free via tr_free_name() */
88 TR_NAME *trp_peer_dup_gssname(TRP_PEER *peer)
90 return tr_dup_name(peer->gssname);
93 /* get the service name (i.e., gssname we see when we connect to this peer) */
94 TR_NAME *trp_peer_get_servicename(TRP_PEER *peer)
96 return peer->servicename;
99 /* get a copy of the servicename, caller must free via tr_free_name */
100 TR_NAME *trp_peer_dup_servicename(TRP_PEER *peer)
102 return tr_dup_name(peer->servicename);
105 unsigned int trp_peer_get_port(TRP_PEER *peer)
110 void trp_peer_set_port(TRP_PEER *peer, unsigned int port)
115 unsigned int trp_peer_get_linkcost(TRP_PEER *peer)
118 return peer->linkcost;
123 void trp_peer_set_linkcost(TRP_PEER *peer, unsigned int linkcost)
125 if ((linkcost>TRP_METRIC_INFINITY) && (linkcost!=TRP_METRIC_INVALID)) {
126 /* This indicates a programming error, but probably means an already infinite metric
127 * was (incorrectly) incremented. Issue a warning and proceed with an infinite metric. */
128 tr_warning("trp_peer_set_linkcost: link cost > infinity encountered, setting to infinity");
129 linkcost=TRP_METRIC_INFINITY;
131 peer->linkcost=linkcost;
134 struct timespec *trp_peer_get_last_conn_attempt(TRP_PEER *peer)
136 return &(peer->last_conn_attempt);
139 void trp_peer_set_last_conn_attempt(TRP_PEER *peer, struct timespec *time)
141 peer->last_conn_attempt=*time;
144 TRP_PTABLE *trp_ptable_new(TALLOC_CTX *memctx)
146 TRP_PTABLE *ptbl=talloc(memctx, TRP_PTABLE);
153 void trp_ptable_free(TRP_PTABLE *ptbl)
158 TRP_RC trp_ptable_add(TRP_PTABLE *ptbl, TRP_PEER *newpeer)
160 if (ptbl->head==NULL) {
163 trp_peer_tail(ptbl->head)->next=newpeer;
164 talloc_steal(ptbl, newpeer);
169 /* peer pointer is invalid after successful removal. Does nothing and returns
170 * TRP_ERROR if peer is not in the list. */
171 TRP_RC trp_ptable_remove(TRP_PTABLE *ptbl, TRP_PEER *peer)
175 if (ptbl->head!=NULL) {
176 if (ptbl->head==peer) {
177 /* special case for removing head of list */
179 ptbl->head=ptbl->head->next; /* advance the head */
182 for (cur=ptbl->head->next; cur!=NULL; last=cur,cur=cur->next) {
185 last->next=cur->next;
194 TRP_PEER *trp_ptable_find_gssname(TRP_PTABLE *ptbl, TR_NAME *gssname)
196 TRP_PEER *cur=ptbl->head;
197 while ((cur!=NULL) && (0 != tr_name_cmp(trp_peer_get_gssname(cur), gssname)))
202 TRP_PEER *trp_ptable_find_servicename(TRP_PTABLE *ptbl, TR_NAME *servicename)
204 TRP_PEER *cur=ptbl->head;
205 while ((cur!=NULL) && (0 != tr_name_cmp(trp_peer_get_servicename(cur), servicename)))
210 char *trp_peer_to_str(TALLOC_CTX *memctx, TRP_PEER *peer, const char *sep)
214 return talloc_asprintf(memctx,
216 peer->server, peer->port, sep,
220 /* this is horribly inefficient but should be ok for small peer tables */
221 char *trp_ptable_to_str(TALLOC_CTX *memctx, TRP_PTABLE *ptbl, const char *sep, const char *lineterm)
223 TALLOC_CTX *tmpctx=talloc_new(NULL);
225 char *result=talloc_strdup(tmpctx, "");
230 /* this leaves intermediate result strings in the tmpctx context, we'll free these when
232 for (peer=ptbl->head; peer!=NULL; peer=peer->next)
233 result=talloc_asprintf(tmpctx, "%s%s%s", result, lineterm, trp_peer_to_str(tmpctx, peer, sep));
235 talloc_steal(memctx, result); /* hand result over to caller */
236 talloc_free(tmpctx); /* free detritus */
240 TRP_PTABLE_ITER *trp_ptable_iter_new(TALLOC_CTX *mem_ctx)
242 TRP_PTABLE_ITER *iter=talloc(mem_ctx, TRP_PTABLE_ITER);
247 TRP_PEER *trp_ptable_iter_first(TRP_PTABLE_ITER *iter, TRP_PTABLE *ptbl)
253 TRP_PEER *trp_ptable_iter_next(TRP_PTABLE_ITER *iter)
259 void trp_ptable_iter_free(TRP_PTABLE_ITER *iter)