hash_entry<T, Q> *hashmap<T, Q>::get_object(Q id)
{
unsigned int loc = genhash(id); //this is where it should be
hash_entry<T, Q> *ret = (hash_entry<T, Q> *)NULL;
assert(table[loc] != NULL);
if (table[loc]->id == id)
return table[loc];
else
{
if ((ret = get_bucket(id, loc)) != NULL)
return ret;
else
return get_qprobe(id, loc);
}
}
static struct pf_set *
pf_init(const struct buffer_list *bl, const char *prefix, const bool allow_kill)
{
#define MODE_UNDEF 0
#define MODE_CLIENTS 1
#define MODE_SUBNETS 2
int mode = MODE_UNDEF;
int line_num = 0;
int n_clients = 0;
int n_subnets = 0;
int n_errors = 0;
struct pf_set *pfs = NULL;
char line[PF_MAX_LINE_LEN];
ALLOC_OBJ_CLEAR(pfs, struct pf_set);
if (bl)
{
struct pf_cn_elem **cl = &pfs->cns.list;
struct pf_subnet **sl = &pfs->sns.list;
struct buffer_entry *be;
for (be = bl->head; be != NULL; be = be->next)
{
++line_num;
strncpynt(line, BSTR(&be->buf), sizeof(line));
rm_trailing_chars(line, "\r\n\t ");
if (line[0] == '\0' || line[0] == '#')
{
}
else if (line[0] == '+' || line[0] == '-')
{
bool exclude = (line[0] == '-');
if (line[1] =='\0')
{
msg(D_PF_INFO, "PF: %s/%d: no data after +/-: '%s'", prefix, line_num, line);
++n_errors;
}
else if (mode == MODE_CLIENTS)
{
if (add_client(&line[1], prefix, line_num, &cl, exclude))
{
++n_clients;
}
else
{
++n_errors;
}
}
else if (mode == MODE_SUBNETS)
{
if (add_subnet(&line[1], prefix, line_num, &sl, exclude))
{
++n_subnets;
}
else
{
++n_errors;
}
}
else if (mode == MODE_UNDEF)
{
}
else
{
ASSERT(0);
}
}
else if (line[0] == '[')
{
if (!strcasecmp(line, "[clients accept]"))
{
mode = MODE_CLIENTS;
pfs->cns.default_allow = true;
}
else if (!strcasecmp(line, "[clients drop]"))
{
mode = MODE_CLIENTS;
pfs->cns.default_allow = false;
}
else if (!strcasecmp(line, "[subnets accept]"))
{
mode = MODE_SUBNETS;
pfs->sns.default_allow = true;
}
else if (!strcasecmp(line, "[subnets drop]"))
{
mode = MODE_SUBNETS;
pfs->sns.default_allow = false;
}
else if (!strcasecmp(line, "[end]"))
{
goto done;
}
else if (allow_kill && !strcasecmp(line, "[kill]"))
{
goto kill;
}
else
{
mode = MODE_UNDEF;
msg(D_PF_INFO, "PF: %s/%d unknown tag: '%s'", prefix, line_num, line);
++n_errors;
}
}
else
{
msg(D_PF_INFO, "PF: %s/%d line must begin with '+', '-', or '[' : '%s'", prefix, line_num, line);
++n_errors;
}
}
++n_errors;
msg(D_PF_INFO, "PF: %s: missing [end]", prefix);
}
else
{
msg(D_PF_INFO, "PF: %s: cannot open", prefix);
++n_errors;
}
done:
if (bl)
{
if (!n_errors)
{
if (!genhash(&pfs->cns, prefix, n_clients))
{
++n_errors;
}
}
if (n_errors)
{
msg(D_PF_INFO, "PF: %s rejected due to %d error(s)", prefix, n_errors);
}
}
if (n_errors)
{
pf_destroy(pfs);
pfs = NULL;
}
return pfs;
kill:
pf_destroy(pfs);
ALLOC_OBJ_CLEAR(pfs, struct pf_set);
pfs->kill = true;
return pfs;
}
