int krip_init(dictionary *conf)
{
char *svrname;
char *vip, *ip, *port, *if_name;
char *p;
char *c;
char file[1024], buf[512];
FILE *fp;
struct sockaddr_in sin;
int listen;
/* Parse the configuration file. ("HOSTNAME_krip" in the current working directory) */
svrname = iniparser_getstring(conf, "KENS:server_name", "KENS");
sprintf(file, "%s_krip", svrname);
fp = fopen(file, "r");
if (fp == NULL) {
_enabled = 0;
return 0;
}
/* Initialize system parameters. */
_update_time = krip_get_mtime();
c = iniparser_getstring(conf,"KENS:krip_update_interval","3000");
_update_interval = atoi(c);
c = iniparser_getstring(conf,"KENS:krip_timeout","7000");
_timeout = atoi(c);
_rip_info_list = list_open();
_neighbor_info_list = list_open();
/* Create a UDP socket for RIP communication. */
if ((_sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
perror("krip");
return -1;
}
_enabled = 1;
/* configuration example:
* listen 127.0.0.1:9501
* 10.1.0.1 seth0 127.0.0.1:9502
* 10.1.1.1 seth1 127.0.0.1:9503
*/
while (fgets(buf, 512, fp)) {
p = strchr(buf, '#');
if (p != NULL) *p = '\0';
if (buf[strlen(buf) - 1] == '\n') buf[strlen(buf) - 1] = '\0';
p = buf;
p = eat_ws(p);
if (p == NULL) continue;
if (strncmp(buf, "listen", 6) == 0) {
listen = 1;
p += 6;
p = eat_ws(p);
}
else {
listen = 0;
vip = p;
p = eat_ipaddr(vip);
*p++ = '\0';
p = eat_ws(p);
if_name = p;
p = eat_alphanum(if_name);
*p++ = '\0';
p = eat_ws(p);
}
ip = p;
p = eat_ipaddr(ip);
*p++ = '\0';
port = p;
p = eat_digit(port);
if (listen)
{
/* Setup the RIP listening socket. */
L_ROUTE("krip_init(): bind to %s:%s", ip, port);
sin.sin_family = AF_INET;
inet_aton(ip, &sin.sin_addr);
sin.sin_port = htons((in_port_t)atoi(port));
if (bind(_sock, (struct sockaddr *)&sin, sizeof(sin))) {
perror("krip");
return -1;
}
}
else
{
/* Setup the neighbor information for RIP clients. */
L_ROUTE("krip_init(): register neighbor %s(%s:%s)", vip, ip, port);
neighbor_info *ni = (neighbor_info *)malloc(sizeof(neighbor_info));
inet_aton(vip, &ni->virtual_addr);
ni->krip_addr.sin_family = AF_INET;
inet_aton(ip, &ni->krip_addr.sin_addr);
ni->krip_addr.sin_port = htons((in_port_t)atoi(port));
ni->ifp = ifunit(if_name);
if (!ni->ifp) {
L_ROUTE("krip_init(): invalid interface name: %s", if_name);
free(ni);
continue;
}
list_add_tail(_neighbor_info_list, ni);
}
}
fclose(fp);
/* Fetch the routing table entries. */
list rte_list = rt_query();
list_position pos;
uint32_t now = krip_get_mtime();
for (pos = list_get_head_position(rte_list);
pos; pos = list_get_next_position(pos)) {
rtentry *rte = list_get_at(pos);
for (; rte; rte = (rtentry *)((radix_node *)rte)->rn_dupedkey) {
if (((radix_node *)rte)->rn_mask == NULL)
continue;
if (rte->dst.s_addr == 0x00000000) {
L_ROUTE("krip_init(): default gw %s", inet_ntoa(rte->gw));
}
else if (rte->dst.s_addr == inet_addr("127.0.0.1")) {
}
else {
L_ROUTE("krip_init(): dst %s", inet_ntoa(rte->dst));
L_ROUTE("krip_init(): mask %s", inet_ntoa(rte->mask));
L_ROUTE("krip_init(): gw %s", inet_ntoa(rte->gw));
rip_info *ri = (rip_info *)malloc(sizeof(rip_info));
ri->assoc_rte = rte;
ri->metric = 1;
ri->change_flag = 1;
ri->timeout = 0; /* The initial entries will not be expired. */
ri->from = NULL;
list_add_tail(_rip_info_list, ri);
}
}
}
/* Send the initial request packets */
pos = list_get_head_position(_neighbor_info_list);
for (; pos; pos = list_get_next_position(pos)) {
neighbor_info *ni = list_get_at(pos);
krip_send_request(ni);
}
return 0;
}
static void test_symtab( void )
{
Symbol *sym;
SymbolHash *symtab, *symtab2;
list_open("test.lst");
opts.symtable = TRUE;
opts.list = TRUE;
warn("Create current module\n");
set_cur_module( new_module() );
warn("Create symbol\n");
sym = Symbol_create(S("Var1"), 123, TYPE_CONSTANT, 0, NULL, NULL);
dump_Symbol(sym);
OBJ_DELETE(sym);
sym = Symbol_create(S("Var1"), 123, TYPE_CONSTANT, 0, CURRENTMODULE, NULL);
dump_Symbol(sym);
CURRENTMODULE->modname = "MODULE";
dump_Symbol(sym);
warn("Delete symbol\n");
OBJ_DELETE(sym);
warn("Global symtab\n");
dump_SymbolHash(global_symtab, "global");
dump_SymbolHash(static_symtab, "static");
warn("check case insensitive - CH_0024\n");
symtab = OBJ_NEW(SymbolHash);
assert( symtab );
_define_sym(S("Var1"), 1, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
_define_sym(S("var1"), 2, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
_define_sym(S("VAR1"), 3, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
dump_SymbolHash(symtab, "tab1");
assert( find_symbol(S("Var1"), symtab)->value == 1 );
assert( find_symbol(S("var1"), symtab)->value == 2 );
assert( find_symbol(S("VAR1"), symtab)->value == 3 );
dump_SymbolHash(symtab, "tab1");
warn("Concat symbol tables\n");
symtab = OBJ_NEW(SymbolHash);
assert( symtab );
_define_sym(S("Var1"), 1, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
_define_sym(S("Var2"), 2, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
_define_sym(S("Var3"), -3, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
dump_SymbolHash(symtab, "tab1");
symtab2 = OBJ_NEW(SymbolHash);
assert( symtab2 );
_define_sym(S("Var3"), 3, TYPE_CONSTANT, 0, NULL, NULL, &symtab2); inc_page_nr();
_define_sym(S("Var4"), 4, TYPE_CONSTANT, 0, NULL, NULL, &symtab2); inc_page_nr();
_define_sym(S("Var5"), 5, TYPE_CONSTANT, 0, NULL, NULL, &symtab2); inc_page_nr();
dump_SymbolHash(symtab2, "tab2");
SymbolHash_cat( &symtab, symtab2 );
dump_SymbolHash(symtab, "merged_tab");
OBJ_DELETE( symtab );
OBJ_DELETE( symtab2 );
warn("Sort\n");
symtab = OBJ_NEW(SymbolHash);
assert( symtab );
_define_sym(S("One"), 1, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
_define_sym(S("Two"), 2, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
_define_sym(S("Three"), 3, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
_define_sym(S("Four"), 4, TYPE_CONSTANT, 0, NULL, NULL, &symtab); inc_page_nr();
dump_SymbolHash(symtab, "tab");
SymbolHash_sort(symtab, SymbolHash_by_name);
dump_SymbolHash(symtab, "tab by name");
SymbolHash_sort(symtab, SymbolHash_by_value);
dump_SymbolHash(symtab, "tab by value");
OBJ_DELETE( symtab );
warn("Use local symbol before definition\n");
_define_sym(S("WIN32"), 1, TYPE_CONSTANT, 0, NULL, NULL, &static_symtab); inc_page_nr();
SymbolHash_cat( & CURRENTMODULE->local_symtab, static_symtab ); inc_page_nr();
_define_sym(S("PC"), 0, TYPE_CONSTANT, 0, NULL, NULL, &global_symtab); inc_page_nr();
find_symbol( S("PC"), global_symtab )->value += 3; inc_page_nr();
find_symbol( S("PC"), global_symtab )->value += 3; inc_page_nr();
sym = get_used_symbol(S("NN")); inc_page_nr();
assert( sym != NULL );
assert( ! sym->is_defined );
find_symbol( S("PC"), global_symtab )->value += 3; inc_page_nr();
sym = get_used_symbol(S("NN")); inc_page_nr();
assert( sym != NULL );
assert( ! sym->is_defined );
find_symbol( S("PC"), global_symtab )->value += 3; inc_page_nr();
sym = define_symbol(S("NN"), find_symbol( "PC", global_symtab )->value, TYPE_ADDRESS);
sym->is_touched = TRUE;
sym = get_used_symbol(S("NN")); inc_page_nr();
assert( sym != NULL );
dump_Symbol(sym);
assert( sym->is_defined );
dump_symtab();
warn("Delete Local\n");
remove_all_local_syms();
dump_symtab();
warn("Delete Static\n");
remove_all_static_syms();
dump_symtab();
warn("Delete Global\n");
remove_all_global_syms();
dump_symtab();
warn("End\n");
}