X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=util.c;h=503dfe27b3aa0f3fd740b5aef0a258fe6d1d083c;hb=refs%2Ftags%2Fv0.1.1;hp=053e81e4eac3112cfb6422f4e3fcf9597391bd16;hpb=8689b3a94c043f04e334a7b181a7250ad5940616;p=secnet.git

diff --git a/util.c b/util.c
index 053e81e..503dfe2 100644
--- a/util.c
+++ b/util.c
@@ -239,7 +239,12 @@ uint32_t write_mpbin(MP_INT *a, uint8_t *buffer, uint32_t buflen)
     return i;
 }
 
-bool_t subnet_match(struct subnet_list *list, uint32_t address)
+bool_t subnet_match(struct subnet *s, uint32_t address)
+{
+    return (s->prefix==(address&s->mask));
+}
+
+bool_t subnet_matches_list(struct subnet_list *list, uint32_t address)
 {
     uint32_t i;
     for (i=0; i<list->entries; i++) {
@@ -248,6 +253,31 @@ bool_t subnet_match(struct subnet_list *list, uint32_t address)
     return False;
 }
 
+bool_t subnets_intersect(struct subnet a, struct subnet b)
+{
+    uint32_t mask=a.mask&b.mask;
+    return ((a.prefix&mask)==(b.prefix&mask));
+}
+
+bool_t subnet_intersects_with_list(struct subnet a, struct subnet_list *b)
+{
+    uint32_t i;
+
+    for (i=0; i<b->entries; i++) {
+	if (subnets_intersect(a,b->list[i])) return True;
+    }
+    return False;
+}
+
+bool_t subnet_lists_intersect(struct subnet_list *a, struct subnet_list *b)
+{
+    uint32_t i;
+    for (i=0; i<a->entries; i++) {
+	if (subnet_intersects_with_list(a->list[i],b)) return True;
+    }
+    return False;
+}
+
 /* The string buffer must be at least 16 bytes long */
 string_t ipaddr_to_string(uint32_t addr)
 {
@@ -278,7 +308,10 @@ string_t subnet_to_string(struct subnet *sn)
     for (i=0; mask; i++) {
 	mask=(mask<<1);
     }
-    snprintf(s, 19, "%d.%d.%d.%d/%d", a, b, c, d, i);
+    if (i!=sn->len) {
+	fatal("subnet_to_string: invalid subnet structure!\n");
+    }
+    snprintf(s, 19, "%d.%d.%d.%d/%d", a, b, c, d, sn->len);
     return s;
 }
 
@@ -415,6 +448,7 @@ static char *phases[NR_PHASES]={
     "PHASE_GETOPTS",
     "PHASE_READCONFIG",
     "PHASE_SETUP",
+    "PHASE_GETRESOURCES",
     "PHASE_DROPPRIV",
     "PHASE_RUN",
     "PHASE_SHUTDOWN"
@@ -424,12 +458,13 @@ void enter_phase(uint32_t new_phase)
 {
     struct phase_hook *i;
 
-    Message(M_DEBUG_PHASE,"entering %s... ", phases[new_phase]);
+    if (hooks[new_phase])
+	Message(M_DEBUG_PHASE,"Running hooks for %s...\n", phases[new_phase]);
     current_phase=new_phase;
 
     for (i=hooks[new_phase]; i; i=i->next)
 	i->fn(i->state, new_phase);
-    Message(M_DEBUG_PHASE,"now in %s\n",phases[new_phase]);
+    Message(M_DEBUG_PHASE,"Now in %s\n",phases[new_phase]);
 }
 
 bool_t add_hook(uint32_t phase, hook_fn *fn, void *state)
@@ -580,7 +615,7 @@ static list_t *buffer_apply(closure_t *self, struct cloc loc, dict_t *context,
 
     buffer_new(&st->ops,len);
     if (lockdown) {
-	Message(M_WARNING,"buffer: XXX lockdown\n");
+	/* XXX mlock the buffer if possible */
     }
     
     return new_closure(&st->cl);