#include <netinet/ether.h>
#include <sys/stat.h>
+#include <sys/types.h>
+#include <regex.h>
+
+#include <uci.h>
+
#include "libvalidate.h"
enum dt_optype {
struct dt_state {
int pos;
int depth;
+ struct uci_context *ctx;
const char *value;
enum dt_type valtype;
struct dt_op stack[32];
static bool
dt_call(struct dt_state *s);
+#define dt_getint(n, v) \
+ ((n < nargs && s->stack[s->pos + n].type == OP_NUMBER) \
+ ? (v = s->stack[s->pos + n].value.number, 1) : 0)
+
static bool
dt_type_or(struct dt_state *s, int nargs)
{
static bool
dt_type_min(struct dt_state *s, int nargs)
{
- int n;
+ int n, min;
char *e;
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
+ if (dt_getint(0, min))
{
n = strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0 &&
- n >= s->stack[s->pos].value.number);
+ return (e > s->value && *e == 0 && n >= min);
}
return false;
static bool
dt_type_max(struct dt_state *s, int nargs)
{
- int n;
+ int n, max;
char *e;
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
+ if (dt_getint(0, max))
{
n = strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0 &&
- n <= s->stack[s->pos].value.number);
+ return (e > s->value && *e == 0 && n <= max);
}
return false;
static bool
dt_type_range(struct dt_state *s, int nargs)
{
- int n;
+ int n, min, max;
char *e;
- if (nargs >= 2 &&
- s->stack[s->pos].type == OP_NUMBER &&
- s->stack[s->pos + 1].type == OP_NUMBER)
+ if (dt_getint(0, min) && dt_getint(1, max))
{
n = strtol(s->value, &e, 0);
-
- return (e > s->value && *e == 0 &&
- n >= s->stack[s->pos].value.number &&
- n <= s->stack[s->pos + 1].value.number);
+ return (e > s->value && *e == 0 && n >= min && n <= max);
}
return false;
static bool
dt_type_minlen(struct dt_state *s, int nargs)
{
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
- return (strlen(s->value) >= s->stack[s->pos].value.number);
+ int min;
+
+ if (dt_getint(0, min))
+ return (strlen(s->value) >= min);
return false;
}
static bool
dt_type_maxlen(struct dt_state *s, int nargs)
{
- if (nargs >= 1 && s->stack[s->pos].type == OP_NUMBER)
- return (strlen(s->value) <= s->stack[s->pos].value.number);
+ int max;
+
+ if (dt_getint(0, max))
+ return (strlen(s->value) <= max);
return false;
}
static bool
dt_type_rangelen(struct dt_state *s, int nargs)
{
- if (nargs >= 2 &&
- s->stack[s->pos].type == OP_NUMBER &&
- s->stack[s->pos + 1].type == OP_NUMBER)
- return (strlen(s->value) >= s->stack[s->pos].value.number &&
- strlen(s->value) <= s->stack[s->pos + 1].value.number);
+ int min, max;
+ int len = strlen(s->value);
+
+ if (dt_getint(0, min) && dt_getint(1, max))
+ return (len >= min && len <= max);
return false;
}
dt_type_int(struct dt_state *s, int nargs)
{
char *e;
+ int base = 0;
+
+ if (!isxdigit(*s->value) && *s->value != '-')
+ return false;
- strtol(s->value, &e, 0);
+ dt_getint(0, base);
+ strtol(s->value, &e, base);
return (e > s->value && *e == 0);
}
static bool
dt_type_uint(struct dt_state *s, int nargs)
{
- int n;
char *e;
+ int base = 0;
- n = strtol(s->value, &e, 0);
+ if (!isxdigit(*s->value))
+ return false;
+
+ dt_getint(0, base);
+ strtoul(s->value, &e, base);
- return (e > s->value && *e == 0 && n >= 0);
+ return (e > s->value && *e == 0);
}
static bool
{
int i;
const char *values[] = {
- "0", "off", "false", "no",
- "1", "on", "true", "yes"
+ "0", "off", "false", "no", "disabled",
+ "1", "on", "true", "yes", "enabled"
};
for (i = 0; i < sizeof(values) / sizeof(values[0]); i++)
static bool
dt_type_string(struct dt_state *s, int nargs)
{
+ int min, max;
+ int len = strlen(s->value);
+
+ if (dt_getint(0, min) && (len < min))
+ return false;
+
+ if (dt_getint(1, max) && (len > max))
+ return false;
+
+ return true;
+}
+
+static bool
+dt_type_hexstring(struct dt_state *s, int nargs)
+{
+ int min, max;
+ int len = strlen(s->value);
+ const char *p;
+
+ if (len % 2)
+ return false;
+
+ if (dt_getint(0, min) && (len < min))
+ return false;
+
+ if (dt_getint(1, max) && (len > max))
+ return false;
+
+ for (p = s->value; *p; p++)
+ if (!isxdigit(*p))
+ return false;
+
return true;
}
return (!stat(s->value, &st) && S_ISREG(st.st_mode));
}
+static bool
+dt_type_regex(struct dt_state *s, int nargs)
+{
+ bool rv;
+ int relen;
+ regex_t pattern;
+ char *re = NULL;
+
+ if (nargs < 1 || s->stack[s->pos].type != OP_STRING)
+ return false;
+
+ relen = s->stack[s->pos].length;
+ re = alloca(relen + 3);
+
+ if (!re)
+ return false;
+
+ memset(re, 0, relen + 3);
+ memcpy(re + 1, s->stack[s->pos].value.string, relen);
+
+ re[0] = '^';
+ re[relen + 1] = '$';
+
+ if (regcomp(&pattern, re, REG_EXTENDED | REG_NOSUB))
+ return false;
+
+ rv = !regexec(&pattern, s->value, 0, NULL, 0);
+
+ regfree(&pattern);
+
+ return rv;
+}
+
+static void *
+dt_uci_lookup(struct dt_state *s, const char *pkg,
+ const char *sct, const char *opt, enum uci_type type)
+{
+ struct uci_ptr ptr = {
+ .package = pkg,
+ .section = sct,
+ .option = opt
+ };
+
+ if (!s->ctx || uci_lookup_ptr(s->ctx, &ptr, NULL, false) ||
+ !(ptr.flags & UCI_LOOKUP_COMPLETE))
+ return NULL;
+
+ if (ptr.last->type != type)
+ return NULL;
+
+ switch (type)
+ {
+ case UCI_TYPE_PACKAGE:
+ return uci_to_package(ptr.last);
+
+ case UCI_TYPE_SECTION:
+ return uci_to_section(ptr.last);
+
+ case UCI_TYPE_OPTION:
+ return uci_to_option(ptr.last);
+
+ default:
+ return NULL;
+ }
+}
+
+static bool
+dt_uci_cmp(struct dt_state *s,
+ const char *pkg, const char *sct, const char *opt)
+{
+ struct uci_element *e;
+ struct uci_option *o = dt_uci_lookup(s, pkg, sct, opt, UCI_TYPE_OPTION);
+
+ if (!o)
+ return false;
+
+ switch (o->type)
+ {
+ case UCI_TYPE_STRING:
+ if (!strcmp(s->value, o->v.string))
+ return true;
+ break;
+
+ case UCI_TYPE_LIST:
+ uci_foreach_element(&o->v.list, e)
+ if (!strcmp(s->value, e->name))
+ return true;
+ break;
+ }
+
+ return false;
+}
+
+static bool
+dt_type_uci(struct dt_state *s, int nargs)
+{
+ int i, len;
+ struct uci_element *e;
+ struct uci_package *p;
+ char *cso[3] = { };
+
+ if (!s->ctx)
+ return false;
+
+ for (i = 0; i < nargs && i < 3; i++)
+ {
+ if (s->stack[s->pos + i].type != OP_STRING)
+ continue;
+
+ len = s->stack[s->pos + i].length;
+ cso[i] = alloca(len + 1);
+
+ if (!cso[i])
+ continue;
+
+ memset(cso[i], 0, len + 1);
+ memcpy(cso[i], s->stack[s->pos + i].value.string, len);
+ }
+
+ if (!cso[0] || !cso[1] || (*cso[1] != '@' && !cso[2]))
+ return false;
+
+ if (*cso[1] != '@')
+ return dt_uci_cmp(s, cso[0], cso[1], cso[2]);
+
+ p = dt_uci_lookup(s, cso[0], NULL, NULL, UCI_TYPE_PACKAGE);
+
+ if (!p)
+ return false;
+
+ uci_foreach_element(&p->sections, e)
+ {
+ if (strcmp(uci_to_section(e)->type, cso[1] + 1))
+ continue;
+
+ if (!cso[2])
+ {
+ if (!strcmp(s->value, e->name))
+ return true;
+ }
+ else
+ {
+ if (dt_uci_cmp(s, cso[0], e->name, cso[2]))
+ return true;
+ }
+ }
+
+ return false;
+}
+
static struct dt_fun dt_types[] = {
- { "or", DT_INVALID, dt_type_or },
- { "and", DT_INVALID, dt_type_and },
- { "not", DT_INVALID, dt_type_not },
- { "neg", DT_INVALID, dt_type_neg },
- { "list", DT_INVALID, dt_type_list },
- { "min", DT_NUMBER, dt_type_min },
- { "max", DT_NUMBER, dt_type_max },
- { "range", DT_NUMBER, dt_type_range },
- { "minlength", DT_STRING, dt_type_minlen },
- { "maxlength", DT_STRING, dt_type_maxlen },
- { "rangelength", DT_STRING, dt_type_rangelen },
- { "integer", DT_NUMBER, dt_type_int },
- { "uinteger", DT_NUMBER, dt_type_uint },
- { "float", DT_NUMBER, dt_type_float },
- { "ufloat", DT_NUMBER, dt_type_ufloat },
- { "bool", DT_BOOL, dt_type_bool },
- { "string", DT_STRING, dt_type_string },
- { "ip4addr", DT_STRING, dt_type_ip4addr },
- { "ip6addr", DT_STRING, dt_type_ip6addr },
- { "ipaddr", DT_STRING, dt_type_ipaddr },
- { "cidr4", DT_STRING, dt_type_cidr4 },
- { "cidr6", DT_STRING, dt_type_cidr6 },
- { "cidr", DT_STRING, dt_type_cidr },
- { "netmask4", DT_STRING, dt_type_netmask4 },
- { "netmask6", DT_STRING, dt_type_netmask6 },
- { "ipmask4", DT_STRING, dt_type_ipmask4 },
- { "ipmask6", DT_STRING, dt_type_ipmask6 },
- { "ipmask", DT_STRING, dt_type_ipmask },
- { "port", DT_NUMBER, dt_type_port },
- { "portrange", DT_STRING, dt_type_portrange },
- { "macaddr", DT_STRING, dt_type_macaddr },
- { "uciname", DT_STRING, dt_type_uciname },
- { "wpakey", DT_STRING, dt_type_wpakey },
- { "wepkey", DT_STRING, dt_type_wepkey },
- { "hostname", DT_STRING, dt_type_hostname },
- { "host", DT_STRING, dt_type_host },
- { "network", DT_STRING, dt_type_network },
- { "phonedigit", DT_STRING, dt_type_phonedigit },
- { "directory", DT_STRING, dt_type_directory },
- { "device", DT_STRING, dt_type_device },
- { "file", DT_STRING, dt_type_file },
+ { "or", DT_INVALID, dt_type_or },
+ { "and", DT_INVALID, dt_type_and },
+ { "not", DT_INVALID, dt_type_not },
+ { "neg", DT_INVALID, dt_type_neg },
+ { "list", DT_INVALID, dt_type_list },
+ { "min", DT_NUMBER, dt_type_min },
+ { "max", DT_NUMBER, dt_type_max },
+ { "range", DT_NUMBER, dt_type_range },
+ { "minlength", DT_STRING, dt_type_minlen },
+ { "maxlength", DT_STRING, dt_type_maxlen },
+ { "rangelength", DT_STRING, dt_type_rangelen },
+ { "integer", DT_NUMBER, dt_type_int },
+ { "uinteger", DT_NUMBER, dt_type_uint },
+ { "float", DT_NUMBER, dt_type_float },
+ { "ufloat", DT_NUMBER, dt_type_ufloat },
+ { "bool", DT_BOOL, dt_type_bool },
+ { "string", DT_STRING, dt_type_string },
+ { "hexstring", DT_STRING, dt_type_hexstring },
+ { "ip4addr", DT_STRING, dt_type_ip4addr },
+ { "ip6addr", DT_STRING, dt_type_ip6addr },
+ { "ipaddr", DT_STRING, dt_type_ipaddr },
+ { "cidr4", DT_STRING, dt_type_cidr4 },
+ { "cidr6", DT_STRING, dt_type_cidr6 },
+ { "cidr", DT_STRING, dt_type_cidr },
+ { "netmask4", DT_STRING, dt_type_netmask4 },
+ { "netmask6", DT_STRING, dt_type_netmask6 },
+ { "ipmask4", DT_STRING, dt_type_ipmask4 },
+ { "ipmask6", DT_STRING, dt_type_ipmask6 },
+ { "ipmask", DT_STRING, dt_type_ipmask },
+ { "port", DT_NUMBER, dt_type_port },
+ { "portrange", DT_STRING, dt_type_portrange },
+ { "macaddr", DT_STRING, dt_type_macaddr },
+ { "uciname", DT_STRING, dt_type_uciname },
+ { "wpakey", DT_STRING, dt_type_wpakey },
+ { "wepkey", DT_STRING, dt_type_wepkey },
+ { "hostname", DT_STRING, dt_type_hostname },
+ { "host", DT_STRING, dt_type_host },
+ { "network", DT_STRING, dt_type_network },
+ { "phonedigit", DT_STRING, dt_type_phonedigit },
+ { "directory", DT_STRING, dt_type_directory },
+ { "device", DT_STRING, dt_type_device },
+ { "file", DT_STRING, dt_type_file },
+ { "regex", DT_STRING, dt_type_regex },
+ { "uci", DT_STRING, dt_type_uci },
{ }
};
enum dt_type
dt_parse(const char *code, const char *value)
{
+ enum dt_type rv = DT_INVALID;
+
struct dt_state s = {
.depth = 1,
.stack = {
if (!dt_parse_list(&s, code, code + strlen(code)))
return false;
+ s.ctx = uci_alloc_context();
s.value = value;
if (dt_call(&s))
- return s.valtype;
+ rv = s.valtype;
+
+ if (s.ctx)
+ uci_free_context(s.ctx);
- return DT_INVALID;
+ return rv;
}
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