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-rw-r--r--src/hlua_fcn.c1780
1 files changed, 1780 insertions, 0 deletions
diff --git a/src/hlua_fcn.c b/src/hlua_fcn.c
new file mode 100644
index 0000000..0046e9e
--- /dev/null
+++ b/src/hlua_fcn.c
@@ -0,0 +1,1780 @@
+/*
+ * Lua safe functions
+ *
+ * Copyright 2015-2016 Thierry Fournier <tfournier@arpalert.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ *
+ * All the functions in this file runs with a Lua stack, and can
+ * return with a longjmp. All of these function must be launched
+ * in an environment able to catch a longjmp, otherwise a
+ * critical error can be raised.
+ */
+
+#define _GNU_SOURCE
+
+#include <lauxlib.h>
+#include <lua.h>
+#include <lualib.h>
+
+#include <import/ebmbtree.h>
+
+#include <haproxy/cli-t.h>
+#include <haproxy/errors.h>
+#include <haproxy/hlua-t.h>
+#include <haproxy/hlua_fcn.h>
+#include <haproxy/http.h>
+#include <haproxy/net_helper.h>
+#include <haproxy/pattern-t.h>
+#include <haproxy/proxy.h>
+#include <haproxy/regex.h>
+#include <haproxy/server.h>
+#include <haproxy/stats.h>
+#include <haproxy/stick_table.h>
+#include <haproxy/stream-t.h>
+#include <haproxy/time.h>
+#include <haproxy/tools.h>
+
+/* Contains the class reference of the concat object. */
+static int class_concat_ref;
+static int class_proxy_ref;
+static int class_server_ref;
+static int class_listener_ref;
+static int class_regex_ref;
+static int class_stktable_ref;
+
+#define STATS_LEN (MAX((int)ST_F_TOTAL_FIELDS, (int)INF_TOTAL_FIELDS))
+
+static THREAD_LOCAL struct field stats[STATS_LEN];
+
+int hlua_checkboolean(lua_State *L, int index)
+{
+ if (!lua_isboolean(L, index))
+ luaL_argerror(L, index, "boolean expected");
+ return lua_toboolean(L, index);
+}
+
+/* Helper to push unsigned integers to Lua stack, respecting Lua limitations */
+static int hlua_fcn_pushunsigned(lua_State *L, unsigned int val)
+{
+#if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64)))
+ lua_pushinteger(L, val);
+#else
+ if (val > INT_MAX)
+ lua_pushnumber(L, (lua_Number)val);
+ else
+ lua_pushinteger(L, (int)val);
+#endif
+ return 1;
+}
+
+/* Helper to push unsigned long long to Lua stack, respecting Lua limitations */
+static int hlua_fcn_pushunsigned_ll(lua_State *L, unsigned long long val) {
+#if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64)))
+ /* 64 bits case, U64 is supported until LLONG_MAX */
+ if (val > LLONG_MAX)
+ lua_pushnumber(L, (lua_Number)val);
+ else
+ lua_pushinteger(L, val);
+#else
+ /* 32 bits case, U64 is supported until INT_MAX */
+ if (val > INT_MAX)
+ lua_pushnumber(L, (lua_Number)val);
+ else
+ lua_pushinteger(L, (int)val);
+#endif
+ return 1;
+}
+
+/* This function gets a struct field and converts it in Lua
+ * variable. The variable is pushed at the top of the stack.
+ */
+int hlua_fcn_pushfield(lua_State *L, struct field *field)
+{
+ /* The lua_Integer is always signed. Its length depends on
+ * compilation options, so the following code is conditioned
+ * by some macros. Windows maros are not supported.
+ * If the number cannot be represented as integer, we try to
+ * convert to float.
+ */
+ switch (field_format(field, 0)) {
+
+ case FF_EMPTY:
+ lua_pushnil(L);
+ return 1;
+
+ case FF_S32:
+ /* S32 is always supported. */
+ lua_pushinteger(L, field->u.s32);
+ return 1;
+
+ case FF_U32:
+#if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64)))
+ /* 64 bits case, U32 is always supported */
+ lua_pushinteger(L, field->u.u32);
+#else
+ /* 32 bits case, U32 is supported until INT_MAX. */
+ if (field->u.u32 > INT_MAX)
+ lua_pushnumber(L, (lua_Number)field->u.u32);
+ else
+ lua_pushinteger(L, field->u.u32);
+#endif
+ return 1;
+
+ case FF_S64:
+#if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64)))
+ /* 64 bits case, S64 is always supported */
+ lua_pushinteger(L, field->u.s64);
+#else
+ /* 64 bits case, S64 is supported between INT_MIN and INT_MAX */
+ if (field->u.s64 < INT_MIN || field->u.s64 > INT_MAX)
+ lua_pushnumber(L, (lua_Number)field->u.s64);
+ else
+ lua_pushinteger(L, (int)field->u.s64);
+#endif
+ return 1;
+
+ case FF_U64:
+#if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64)))
+ /* 64 bits case, U64 is supported until LLONG_MAX */
+ if (field->u.u64 > LLONG_MAX)
+ lua_pushnumber(L, (lua_Number)field->u.u64);
+ else
+ lua_pushinteger(L, field->u.u64);
+#else
+ /* 64 bits case, U64 is supported until INT_MAX */
+ if (field->u.u64 > INT_MAX)
+ lua_pushnumber(L, (lua_Number)field->u.u64);
+ else
+ lua_pushinteger(L, (int)field->u.u64);
+#endif
+ return 1;
+
+ case FF_STR:
+ lua_pushstring(L, field->u.str);
+ return 1;
+
+ default:
+ break;
+ }
+
+ /* Default case, never reached. */
+ lua_pushnil(L);
+ return 1;
+}
+
+/* Some string are started or terminated by blank chars,
+ * this function removes the spaces, tabs, \r and
+ * \n at the begin and at the end of the string "str", and
+ * push the result in the lua stack.
+ * Returns a pointer to the Lua internal copy of the string.
+ */
+const char *hlua_pushstrippedstring(lua_State *L, const char *str)
+{
+ const char *p;
+ int l;
+
+ for (p = str; HTTP_IS_LWS(*p); p++);
+
+ for (l = strlen(p); l && HTTP_IS_LWS(p[l-1]); l--);
+
+ return lua_pushlstring(L, p, l);
+}
+
+/* The three following functions are useful for adding entries
+ * in a table. These functions takes a string and respectively an
+ * integer, a string or a function and add it to the table in the
+ * top of the stack.
+ *
+ * These functions throws an error if no more stack size is
+ * available.
+ */
+void hlua_class_const_int(lua_State *L, const char *name, int value)
+{
+ lua_pushstring(L, name);
+ lua_pushinteger(L, value);
+ lua_rawset(L, -3);
+}
+void hlua_class_const_str(lua_State *L, const char *name, const char *value)
+{
+ lua_pushstring(L, name);
+ lua_pushstring(L, value);
+ lua_rawset(L, -3);
+}
+void hlua_class_function(lua_State *L, const char *name, int (*function)(lua_State *L))
+{
+ lua_pushstring(L, name);
+ lua_pushcclosure(L, function, 0);
+ lua_rawset(L, -3);
+}
+
+/* This function returns a string containing the HAProxy object name. */
+int hlua_dump_object(struct lua_State *L)
+{
+ const char *name = (const char *)lua_tostring(L, lua_upvalueindex(1));
+ lua_pushfstring(L, "HAProxy class %s", name);
+ return 1;
+}
+
+/* This function register a table as metatable and. It names
+ * the metatable, and returns the associated reference.
+ * The original table is popped from the top of the stack.
+ * "name" is the referenced class name.
+ */
+int hlua_register_metatable(struct lua_State *L, char *name)
+{
+ /* Check the type of the top element. it must be
+ * a table.
+ */
+ if (lua_type(L, -1) != LUA_TTABLE)
+ luaL_error(L, "hlua_register_metatable() requires a type Table "
+ "in the top of the stack");
+
+ /* Add the __tostring function which identify the
+ * created object.
+ */
+ lua_pushstring(L, "__tostring");
+ lua_pushstring(L, name);
+ lua_pushcclosure(L, hlua_dump_object, 1);
+ lua_rawset(L, -3);
+
+ /* Register a named entry for the table. The table
+ * reference is copied first because the function
+ * lua_setfield() pop the entry.
+ */
+ lua_pushvalue(L, -1);
+ lua_setfield(L, LUA_REGISTRYINDEX, name);
+
+ /* Creates the reference of the object. The
+ * function luaL_ref pop the top of the stack.
+ */
+ return luaL_ref(L, LUA_REGISTRYINDEX);
+}
+
+/* Return an object of the expected type, or throws an error. */
+void *hlua_checkudata(lua_State *L, int ud, int class_ref)
+{
+ void *p;
+ int ret;
+
+ /* Check if the stack entry is an array. */
+ if (!lua_istable(L, ud))
+ luaL_argerror(L, ud, NULL);
+
+ /* pop the metatable of the referencecd object. */
+ if (!lua_getmetatable(L, ud))
+ luaL_argerror(L, ud, NULL);
+
+ /* pop the expected metatable. */
+ lua_rawgeti(L, LUA_REGISTRYINDEX, class_ref);
+
+ /* Check if the metadata have the expected type. */
+ ret = lua_rawequal(L, -1, -2);
+ lua_pop(L, 2);
+ if (!ret)
+ luaL_argerror(L, ud, NULL);
+
+ /* Push on the stack at the entry [0] of the table. */
+ lua_rawgeti(L, ud, 0);
+
+ /* Check if this entry is userdata. */
+ p = lua_touserdata(L, -1);
+ if (!p)
+ luaL_argerror(L, ud, NULL);
+
+ /* Remove the entry returned by lua_rawgeti(). */
+ lua_pop(L, 1);
+
+ /* Return the associated struct. */
+ return p;
+}
+
+/* This function return the current date at epoch format in milliseconds. */
+int hlua_now(lua_State *L)
+{
+ lua_newtable(L);
+ lua_pushstring(L, "sec");
+ lua_pushinteger(L, now.tv_sec);
+ lua_rawset(L, -3);
+ lua_pushstring(L, "usec");
+ lua_pushinteger(L, now.tv_usec);
+ lua_rawset(L, -3);
+ return 1;
+}
+
+/* This functions expects a Lua string as HTTP date, parse it and
+ * returns an integer containing the epoch format of the date, or
+ * nil if the parsing fails.
+ */
+static int hlua_parse_date(lua_State *L, int (*fcn)(const char *, int, struct tm*))
+{
+ const char *str;
+ size_t len;
+ struct tm tm;
+ time_t time;
+
+ str = luaL_checklstring(L, 1, &len);
+
+ if (!fcn(str, len, &tm)) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ /* This function considers the content of the broken-down time
+ * is exprimed in the UTC timezone. timegm don't care about
+ * the gnu variable tm_gmtoff. If gmtoff is set, or if you know
+ * the timezone from the broken-down time, it must be fixed
+ * after the conversion.
+ */
+ time = my_timegm(&tm);
+ if (time == -1) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ lua_pushinteger(L, (int)time);
+ return 1;
+}
+static int hlua_http_date(lua_State *L)
+{
+ return hlua_parse_date(L, parse_http_date);
+}
+static int hlua_imf_date(lua_State *L)
+{
+ return hlua_parse_date(L, parse_imf_date);
+}
+static int hlua_rfc850_date(lua_State *L)
+{
+ return hlua_parse_date(L, parse_rfc850_date);
+}
+static int hlua_asctime_date(lua_State *L)
+{
+ return hlua_parse_date(L, parse_asctime_date);
+}
+
+static int hlua_get_info(lua_State *L)
+{
+ int i;
+
+ stats_fill_info(stats, STATS_LEN, 0);
+
+ lua_newtable(L);
+ for (i=0; i<INF_TOTAL_FIELDS; i++) {
+ lua_pushstring(L, info_fields[i].name);
+ hlua_fcn_pushfield(L, &stats[i]);
+ lua_settable(L, -3);
+ }
+ return 1;
+}
+
+static struct hlua_concat *hlua_check_concat(lua_State *L, int ud)
+{
+ return (hlua_checkudata(L, ud, class_concat_ref));
+}
+
+static int hlua_concat_add(lua_State *L)
+{
+ struct hlua_concat *b;
+ char *buffer;
+ char *new;
+ const char *str;
+ size_t l;
+
+ /* First arg must be a concat object. */
+ b = hlua_check_concat(L, 1);
+
+ /* Second arg must be a string. */
+ str = luaL_checklstring(L, 2, &l);
+
+ /* Get the buffer. */
+ lua_rawgeti(L, 1, 1);
+ buffer = lua_touserdata(L, -1);
+ lua_pop(L, 1);
+
+ /* Update the buffer size if it s required. The old buffer
+ * is crushed by the new in the object array, so it will
+ * be deleted by the GC.
+ * Note that in the first loop, the "new" variable is only
+ * used as a flag.
+ */
+ new = NULL;
+ while (b->size - b->len < l) {
+ b->size += HLUA_CONCAT_BLOCSZ;
+ new = buffer;
+ }
+ if (new) {
+ new = lua_newuserdata(L, b->size);
+ memcpy(new, buffer, b->len);
+ lua_rawseti(L, 1, 1);
+ buffer = new;
+ }
+
+ /* Copy string, and update metadata. */
+ memcpy(buffer + b->len, str, l);
+ b->len += l;
+ return 0;
+}
+
+static int hlua_concat_dump(lua_State *L)
+{
+ struct hlua_concat *b;
+ char *buffer;
+
+ /* First arg must be a concat object. */
+ b = hlua_check_concat(L, 1);
+
+ /* Get the buffer. */
+ lua_rawgeti(L, 1, 1);
+ buffer = lua_touserdata(L, -1);
+ lua_pop(L, 1);
+
+ /* Push the soncatenated string in the stack. */
+ lua_pushlstring(L, buffer, b->len);
+ return 1;
+}
+
+int hlua_concat_new(lua_State *L)
+{
+ struct hlua_concat *b;
+
+ lua_newtable(L);
+ b = lua_newuserdata(L, sizeof(*b));
+ b->size = HLUA_CONCAT_BLOCSZ;
+ b->len = 0;
+ lua_rawseti(L, -2, 0);
+ lua_newuserdata(L, HLUA_CONCAT_BLOCSZ);
+ lua_rawseti(L, -2, 1);
+
+ lua_rawgeti(L, LUA_REGISTRYINDEX, class_concat_ref);
+ lua_setmetatable(L, -2);
+
+ return 1;
+}
+
+static int concat_tostring(lua_State *L)
+{
+ const void *ptr = lua_topointer(L, 1);
+ lua_pushfstring(L, "Concat object: %p", ptr);
+ return 1;
+}
+
+static int hlua_concat_init(lua_State *L)
+{
+ /* Creates the buffered concat object. */
+ lua_newtable(L);
+
+ lua_pushstring(L, "__tostring");
+ lua_pushcclosure(L, concat_tostring, 0);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "__index"); /* Creates the index entry. */
+ lua_newtable(L); /* The "__index" content. */
+
+ lua_pushstring(L, "add");
+ lua_pushcclosure(L, hlua_concat_add, 0);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "dump");
+ lua_pushcclosure(L, hlua_concat_dump, 0);
+ lua_settable(L, -3);
+
+ lua_settable(L, -3); /* Sets the __index entry. */
+ class_concat_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ return 1;
+}
+
+int hlua_fcn_new_stktable(lua_State *L, struct stktable *tbl)
+{
+ lua_newtable(L);
+
+ /* Pop a class stktbl metatable and affect it to the userdata. */
+ lua_rawgeti(L, LUA_REGISTRYINDEX, class_stktable_ref);
+ lua_setmetatable(L, -2);
+
+ lua_pushlightuserdata(L, tbl);
+ lua_rawseti(L, -2, 0);
+ return 1;
+}
+
+static struct stktable *hlua_check_stktable(lua_State *L, int ud)
+{
+ return hlua_checkudata(L, ud, class_stktable_ref);
+}
+
+/* Extract stick table attributes into Lua table */
+int hlua_stktable_info(lua_State *L)
+{
+ struct stktable *tbl;
+ int dt;
+
+ tbl = hlua_check_stktable(L, 1);
+
+ if (!tbl->id) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ lua_newtable(L);
+
+ lua_pushstring(L, "type");
+ lua_pushstring(L, stktable_types[tbl->type].kw);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "length");
+ lua_pushinteger(L, tbl->key_size);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "size");
+ hlua_fcn_pushunsigned(L, tbl->size);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "used");
+ hlua_fcn_pushunsigned(L, tbl->current);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "nopurge");
+ lua_pushboolean(L, tbl->nopurge > 0);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "expire");
+ lua_pushinteger(L, tbl->expire);
+ lua_settable(L, -3);
+
+ /* Save data types periods (if applicable) in 'data' table */
+ lua_pushstring(L, "data");
+ lua_newtable(L);
+
+ for (dt = 0; dt < STKTABLE_DATA_TYPES; dt++) {
+ if (tbl->data_ofs[dt] == 0)
+ continue;
+
+ lua_pushstring(L, stktable_data_types[dt].name);
+
+ if (stktable_data_types[dt].arg_type == ARG_T_DELAY)
+ lua_pushinteger(L, tbl->data_arg[dt].u);
+ else
+ lua_pushinteger(L, -1);
+
+ lua_settable(L, -3);
+ }
+
+ lua_settable(L, -3);
+
+ return 1;
+}
+
+/* Helper to get extract stick table entry into Lua table */
+static void hlua_stktable_entry(lua_State *L, struct stktable *t, struct stksess *ts)
+{
+ int dt;
+ void *ptr;
+
+ for (dt = 0; dt < STKTABLE_DATA_TYPES; dt++) {
+
+ if (t->data_ofs[dt] == 0)
+ continue;
+
+ lua_pushstring(L, stktable_data_types[dt].name);
+
+ ptr = stktable_data_ptr(t, ts, dt);
+ switch (stktable_data_types[dt].std_type) {
+ case STD_T_SINT:
+ lua_pushinteger(L, stktable_data_cast(ptr, std_t_sint));
+ break;
+ case STD_T_UINT:
+ hlua_fcn_pushunsigned(L, stktable_data_cast(ptr, std_t_uint));
+ break;
+ case STD_T_ULL:
+ hlua_fcn_pushunsigned_ll(L, stktable_data_cast(ptr, std_t_ull));
+ break;
+ case STD_T_FRQP:
+ lua_pushinteger(L, read_freq_ctr_period(&stktable_data_cast(ptr, std_t_frqp),
+ t->data_arg[dt].u));
+ break;
+ case STD_T_DICT: {
+ struct dict_entry *de;
+ de = stktable_data_cast(ptr, std_t_dict);
+ lua_pushstring(L, de ? (char *)de->value.key : "-");
+ break;
+ }
+ }
+
+ lua_settable(L, -3);
+ }
+}
+
+/* Looks in table <t> for a sticky session matching key <key>
+ * Returns table with session data or nil
+ *
+ * The returned table always contains 'use' and 'expire' (integer) fields.
+ * For frequency/rate counters, each data entry is returned as table with
+ * 'value' and 'period' fields.
+ */
+int hlua_stktable_lookup(lua_State *L)
+{
+ struct stktable *t;
+ struct sample smp;
+ struct stktable_key *skey;
+ struct stksess *ts;
+
+ t = hlua_check_stktable(L, 1);
+ smp.data.type = SMP_T_STR;
+ smp.flags = SMP_F_CONST;
+ smp.data.u.str.area = (char *)lua_tolstring(L, 2, &smp.data.u.str.data);
+
+ skey = smp_to_stkey(&smp, t);
+ if (!skey) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ ts = stktable_lookup_key(t, skey);
+ if (!ts) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ lua_newtable(L);
+ lua_pushstring(L, "use");
+ lua_pushinteger(L, ts->ref_cnt - 1);
+ lua_settable(L, -3);
+
+ lua_pushstring(L, "expire");
+ lua_pushinteger(L, tick_remain(now_ms, ts->expire));
+ lua_settable(L, -3);
+
+ hlua_stktable_entry(L, t, ts);
+ HA_SPIN_LOCK(STK_TABLE_LOCK, &t->lock);
+ ts->ref_cnt--;
+ HA_SPIN_UNLOCK(STK_TABLE_LOCK, &t->lock);
+
+ return 1;
+}
+
+struct stk_filter {
+ long long val;
+ int type;
+ int op;
+};
+
+
+/* Helper for returning errors to callers using Lua convention (nil, err) */
+static int hlua_error(lua_State *L, const char *fmt, ...) {
+ char buf[256];
+ int len;
+ va_list args;
+ va_start(args, fmt);
+ len = vsnprintf(buf, sizeof(buf), fmt, args);
+ va_end(args);
+
+ if (len < 0) {
+ ha_alert("hlua_error(): Could not write error message.\n");
+ lua_pushnil(L);
+ return 1;
+ } else if (len >= sizeof(buf))
+ ha_alert("hlua_error(): Error message was truncated.\n");
+
+ lua_pushnil(L);
+ lua_pushstring(L, buf);
+
+ return 2;
+}
+
+/* Dump the contents of stick table <t>*/
+int hlua_stktable_dump(lua_State *L)
+{
+ struct stktable *t;
+ struct ebmb_node *eb;
+ struct ebmb_node *n;
+ struct stksess *ts;
+ int type;
+ int op;
+ int dt;
+ long long val;
+ struct stk_filter filter[STKTABLE_FILTER_LEN];
+ int filter_count = 0;
+ int i;
+ int skip_entry;
+ void *ptr;
+
+ t = hlua_check_stktable(L, 1);
+ type = lua_type(L, 2);
+
+ switch (type) {
+ case LUA_TNONE:
+ case LUA_TNIL:
+ break;
+ case LUA_TTABLE:
+ lua_pushnil(L);
+ while (lua_next(L, 2) != 0) {
+ int entry_idx = 0;
+
+ if (filter_count >= STKTABLE_FILTER_LEN)
+ return hlua_error(L, "Filter table too large (len > %d)", STKTABLE_FILTER_LEN);
+
+ if (lua_type(L, -1) != LUA_TTABLE || lua_rawlen(L, -1) != 3)
+ return hlua_error(L, "Filter table entry must be a triplet: {\"data_col\", \"op\", val} (entry #%d)", filter_count + 1);
+
+ lua_pushnil(L);
+ while (lua_next(L, -2) != 0) {
+ switch (entry_idx) {
+ case 0:
+ if (lua_type(L, -1) != LUA_TSTRING)
+ return hlua_error(L, "Filter table data column must be string (entry #%d)", filter_count + 1);
+
+ dt = stktable_get_data_type((char *)lua_tostring(L, -1));
+ if (dt < 0 || t->data_ofs[dt] == 0)
+ return hlua_error(L, "Filter table data column not present in stick table (entry #%d)", filter_count + 1);
+ filter[filter_count].type = dt;
+ break;
+ case 1:
+ if (lua_type(L, -1) != LUA_TSTRING)
+ return hlua_error(L, "Filter table operator must be string (entry #%d)", filter_count + 1);
+
+ op = get_std_op(lua_tostring(L, -1));
+ if (op < 0)
+ return hlua_error(L, "Unknown operator in filter table (entry #%d)", filter_count + 1);
+ filter[filter_count].op = op;
+ break;
+ case 2:
+ val = lua_tointeger(L, -1);
+ filter[filter_count].val = val;
+ filter_count++;
+ break;
+ default:
+ break;
+ }
+ entry_idx++;
+ lua_pop(L, 1);
+ }
+ lua_pop(L, 1);
+ }
+ break;
+ default:
+ return hlua_error(L, "filter table expected");
+ }
+
+ lua_newtable(L);
+
+ HA_SPIN_LOCK(STK_TABLE_LOCK, &t->lock);
+ eb = ebmb_first(&t->keys);
+ for (n = eb; n; n = ebmb_next(n)) {
+ ts = ebmb_entry(n, struct stksess, key);
+ if (!ts) {
+ HA_SPIN_UNLOCK(STK_TABLE_LOCK, &t->lock);
+ return 1;
+ }
+ ts->ref_cnt++;
+ HA_SPIN_UNLOCK(STK_TABLE_LOCK, &t->lock);
+
+ /* multi condition/value filter */
+ skip_entry = 0;
+ for (i = 0; i < filter_count; i++) {
+ if (t->data_ofs[filter[i].type] == 0)
+ continue;
+
+ ptr = stktable_data_ptr(t, ts, filter[i].type);
+
+ switch (stktable_data_types[filter[i].type].std_type) {
+ case STD_T_SINT:
+ val = stktable_data_cast(ptr, std_t_sint);
+ break;
+ case STD_T_UINT:
+ val = stktable_data_cast(ptr, std_t_uint);
+ break;
+ case STD_T_ULL:
+ val = stktable_data_cast(ptr, std_t_ull);
+ break;
+ case STD_T_FRQP:
+ val = read_freq_ctr_period(&stktable_data_cast(ptr, std_t_frqp),
+ t->data_arg[filter[i].type].u);
+ break;
+ default:
+ continue;
+ break;
+ }
+
+ op = filter[i].op;
+
+ if ((val < filter[i].val && (op == STD_OP_EQ || op == STD_OP_GT || op == STD_OP_GE)) ||
+ (val == filter[i].val && (op == STD_OP_NE || op == STD_OP_GT || op == STD_OP_LT)) ||
+ (val > filter[i].val && (op == STD_OP_EQ || op == STD_OP_LT || op == STD_OP_LE))) {
+ skip_entry = 1;
+ break;
+ }
+ }
+
+ if (skip_entry) {
+ HA_SPIN_LOCK(STK_TABLE_LOCK, &t->lock);
+ ts->ref_cnt--;
+ continue;
+ }
+
+ if (t->type == SMP_T_IPV4) {
+ char addr[INET_ADDRSTRLEN];
+ inet_ntop(AF_INET, (const void *)&ts->key.key, addr, sizeof(addr));
+ lua_pushstring(L, addr);
+ } else if (t->type == SMP_T_IPV6) {
+ char addr[INET6_ADDRSTRLEN];
+ inet_ntop(AF_INET6, (const void *)&ts->key.key, addr, sizeof(addr));
+ lua_pushstring(L, addr);
+ } else if (t->type == SMP_T_SINT) {
+ lua_pushinteger(L, *ts->key.key);
+ } else if (t->type == SMP_T_STR) {
+ lua_pushstring(L, (const char *)ts->key.key);
+ } else {
+ return hlua_error(L, "Unsupported stick table key type");
+ }
+
+ lua_newtable(L);
+ hlua_stktable_entry(L, t, ts);
+ lua_settable(L, -3);
+ HA_SPIN_LOCK(STK_TABLE_LOCK, &t->lock);
+ ts->ref_cnt--;
+ }
+ HA_SPIN_UNLOCK(STK_TABLE_LOCK, &t->lock);
+
+ return 1;
+}
+
+int hlua_fcn_new_listener(lua_State *L, struct listener *lst)
+{
+ lua_newtable(L);
+
+ /* Pop a class sesison metatable and affect it to the userdata. */
+ lua_rawgeti(L, LUA_REGISTRYINDEX, class_listener_ref);
+ lua_setmetatable(L, -2);
+
+ lua_pushlightuserdata(L, lst);
+ lua_rawseti(L, -2, 0);
+ return 1;
+}
+
+static struct listener *hlua_check_listener(lua_State *L, int ud)
+{
+ return hlua_checkudata(L, ud, class_listener_ref);
+}
+
+int hlua_listener_get_stats(lua_State *L)
+{
+ struct listener *li;
+ int i;
+
+ li = hlua_check_listener(L, 1);
+
+ if (!li->bind_conf->frontend) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ stats_fill_li_stats(li->bind_conf->frontend, li, STAT_SHLGNDS, stats,
+ STATS_LEN, NULL);
+
+ lua_newtable(L);
+ for (i=0; i<ST_F_TOTAL_FIELDS; i++) {
+ lua_pushstring(L, stat_fields[i].name);
+ hlua_fcn_pushfield(L, &stats[i]);
+ lua_settable(L, -3);
+ }
+ return 1;
+
+}
+
+int hlua_fcn_new_server(lua_State *L, struct server *srv)
+{
+ char buffer[12];
+
+ lua_newtable(L);
+
+ /* Pop a class sesison metatable and affect it to the userdata. */
+ lua_rawgeti(L, LUA_REGISTRYINDEX, class_server_ref);
+ lua_setmetatable(L, -2);
+
+ lua_pushlightuserdata(L, srv);
+ lua_rawseti(L, -2, 0);
+
+ /* Add server name. */
+ lua_pushstring(L, "name");
+ lua_pushstring(L, srv->id);
+ lua_settable(L, -3);
+
+ /* Add server puid. */
+ lua_pushstring(L, "puid");
+ snprintf(buffer, sizeof(buffer), "%d", srv->puid);
+ lua_pushstring(L, buffer);
+ lua_settable(L, -3);
+
+ return 1;
+}
+
+static struct server *hlua_check_server(lua_State *L, int ud)
+{
+ struct server *srv = hlua_checkudata(L, ud, class_server_ref);
+ srv->flags |= SRV_F_NON_PURGEABLE;
+ return srv;
+}
+
+int hlua_server_get_stats(lua_State *L)
+{
+ struct server *srv;
+ int i;
+
+ srv = hlua_check_server(L, 1);
+
+ if (!srv->proxy) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ stats_fill_sv_stats(srv->proxy, srv, STAT_SHLGNDS, stats,
+ STATS_LEN, NULL);
+
+ lua_newtable(L);
+ for (i=0; i<ST_F_TOTAL_FIELDS; i++) {
+ lua_pushstring(L, stat_fields[i].name);
+ hlua_fcn_pushfield(L, &stats[i]);
+ lua_settable(L, -3);
+ }
+ return 1;
+
+}
+
+int hlua_server_get_addr(lua_State *L)
+{
+ struct server *srv;
+ char addr[INET6_ADDRSTRLEN];
+ luaL_Buffer b;
+
+ srv = hlua_check_server(L, 1);
+
+ luaL_buffinit(L, &b);
+
+ switch (srv->addr.ss_family) {
+ case AF_INET:
+ inet_ntop(AF_INET, &((struct sockaddr_in *)&srv->addr)->sin_addr,
+ addr, INET_ADDRSTRLEN);
+ luaL_addstring(&b, addr);
+ luaL_addstring(&b, ":");
+ snprintf(addr, INET_ADDRSTRLEN, "%d", srv->svc_port);
+ luaL_addstring(&b, addr);
+ break;
+ case AF_INET6:
+ inet_ntop(AF_INET6, &((struct sockaddr_in6 *)&srv->addr)->sin6_addr,
+ addr, INET6_ADDRSTRLEN);
+ luaL_addstring(&b, addr);
+ luaL_addstring(&b, ":");
+ snprintf(addr, INET_ADDRSTRLEN, "%d", srv->svc_port);
+ luaL_addstring(&b, addr);
+ break;
+ case AF_UNIX:
+ luaL_addstring(&b, (char *)((struct sockaddr_un *)&srv->addr)->sun_path);
+ break;
+ default:
+ luaL_addstring(&b, "<unknown>");
+ break;
+ }
+
+ luaL_pushresult(&b);
+ return 1;
+}
+
+int hlua_server_is_draining(lua_State *L)
+{
+ struct server *srv;
+
+ srv = hlua_check_server(L, 1);
+ lua_pushinteger(L, server_is_draining(srv));
+ return 1;
+}
+
+int hlua_server_set_maxconn(lua_State *L)
+{
+ struct server *srv;
+ const char *maxconn;
+ const char *err;
+
+ srv = hlua_check_server(L, 1);
+ maxconn = luaL_checkstring(L, 2);
+
+ HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
+ err = server_parse_maxconn_change_request(srv, maxconn);
+ HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
+ if (!err)
+ lua_pushnil(L);
+ else
+ hlua_pushstrippedstring(L, err);
+ return 1;
+}
+
+int hlua_server_get_maxconn(lua_State *L)
+{
+ struct server *srv;
+
+ srv = hlua_check_server(L, 1);
+ lua_pushinteger(L, srv->maxconn);
+ return 1;
+}
+
+int hlua_server_set_weight(lua_State *L)
+{
+ struct server *srv;
+ const char *weight;
+ const char *err;
+
+ srv = hlua_check_server(L, 1);
+ weight = luaL_checkstring(L, 2);
+
+ HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
+ err = server_parse_weight_change_request(srv, weight);
+ HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
+ if (!err)
+ lua_pushnil(L);
+ else
+ hlua_pushstrippedstring(L, err);
+ return 1;
+}
+
+int hlua_server_get_weight(lua_State *L)
+{
+ struct server *srv;
+
+ srv = hlua_check_server(L, 1);
+ lua_pushinteger(L, srv->uweight);
+ return 1;
+}
+
+int hlua_server_set_addr(lua_State *L)
+{
+ struct server *srv;
+ const char *addr;
+ const char *port;
+ const char *err;
+
+ srv = hlua_check_server(L, 1);
+ addr = luaL_checkstring(L, 2);
+ if (lua_gettop(L) >= 3)
+ port = luaL_checkstring(L, 3);
+ else
+ port = NULL;
+
+ HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
+ err = srv_update_addr_port(srv, addr, port, "Lua script");
+ HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
+ if (!err)
+ lua_pushnil(L);
+ else
+ hlua_pushstrippedstring(L, err);
+ return 1;
+}
+
+int hlua_server_shut_sess(lua_State *L)
+{
+ struct server *srv;
+
+ srv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
+ srv_shutdown_streams(srv, SF_ERR_KILLED);
+ HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
+ return 0;
+}
+
+int hlua_server_set_drain(lua_State *L)
+{
+ struct server *srv;
+
+ srv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
+ srv_adm_set_drain(srv);
+ HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
+ return 0;
+}
+
+int hlua_server_set_maint(lua_State *L)
+{
+ struct server *srv;
+
+ srv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
+ srv_adm_set_maint(srv);
+ HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
+ return 0;
+}
+
+int hlua_server_set_ready(lua_State *L)
+{
+ struct server *srv;
+
+ srv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &srv->lock);
+ srv_adm_set_ready(srv);
+ HA_SPIN_UNLOCK(SERVER_LOCK, &srv->lock);
+ return 0;
+}
+
+int hlua_server_check_enable(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (sv->check.state & CHK_ST_CONFIGURED) {
+ sv->check.state |= CHK_ST_ENABLED;
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_check_disable(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (sv->check.state & CHK_ST_CONFIGURED) {
+ sv->check.state &= ~CHK_ST_ENABLED;
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_check_force_up(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (!(sv->track)) {
+ sv->check.health = sv->check.rise + sv->check.fall - 1;
+ srv_set_running(sv, "changed from Lua script", NULL);
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_check_force_nolb(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (!(sv->track)) {
+ sv->check.health = sv->check.rise + sv->check.fall - 1;
+ srv_set_stopping(sv, "changed from Lua script", NULL);
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_check_force_down(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (!(sv->track)) {
+ sv->check.health = 0;
+ srv_set_stopped(sv, "changed from Lua script", NULL);
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_agent_enable(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (sv->agent.state & CHK_ST_CONFIGURED) {
+ sv->agent.state |= CHK_ST_ENABLED;
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_agent_disable(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (sv->agent.state & CHK_ST_CONFIGURED) {
+ sv->agent.state &= ~CHK_ST_ENABLED;
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_agent_force_up(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (sv->agent.state & CHK_ST_ENABLED) {
+ sv->agent.health = sv->agent.rise + sv->agent.fall - 1;
+ srv_set_running(sv, "changed from Lua script", NULL);
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_server_agent_force_down(lua_State *L)
+{
+ struct server *sv;
+
+ sv = hlua_check_server(L, 1);
+ HA_SPIN_LOCK(SERVER_LOCK, &sv->lock);
+ if (sv->agent.state & CHK_ST_ENABLED) {
+ sv->agent.health = 0;
+ srv_set_stopped(sv, "changed from Lua script", NULL);
+ }
+ HA_SPIN_UNLOCK(SERVER_LOCK, &sv->lock);
+ return 0;
+}
+
+int hlua_fcn_new_proxy(lua_State *L, struct proxy *px)
+{
+ struct server *srv;
+ struct listener *lst;
+ int lid;
+ char buffer[17];
+
+ lua_newtable(L);
+
+ /* Pop a class sesison metatable and affect it to the userdata. */
+ lua_rawgeti(L, LUA_REGISTRYINDEX, class_proxy_ref);
+ lua_setmetatable(L, -2);
+
+ lua_pushlightuserdata(L, px);
+ lua_rawseti(L, -2, 0);
+
+ /* Add proxy name. */
+ lua_pushstring(L, "name");
+ lua_pushstring(L, px->id);
+ lua_settable(L, -3);
+
+ /* Add proxy uuid. */
+ lua_pushstring(L, "uuid");
+ snprintf(buffer, sizeof(buffer), "%d", px->uuid);
+ lua_pushstring(L, buffer);
+ lua_settable(L, -3);
+
+ /* Browse and register servers. */
+ lua_pushstring(L, "servers");
+ lua_newtable(L);
+ for (srv = px->srv; srv; srv = srv->next) {
+ lua_pushstring(L, srv->id);
+ hlua_fcn_new_server(L, srv);
+ lua_settable(L, -3);
+ }
+ lua_settable(L, -3);
+
+ /* Browse and register listeners. */
+ lua_pushstring(L, "listeners");
+ lua_newtable(L);
+ lid = 1;
+ list_for_each_entry(lst, &px->conf.listeners, by_fe) {
+ if (lst->name)
+ lua_pushstring(L, lst->name);
+ else {
+ snprintf(buffer, sizeof(buffer), "sock-%d", lid);
+ lid++;
+ lua_pushstring(L, buffer);
+ }
+ hlua_fcn_new_listener(L, lst);
+ lua_settable(L, -3);
+ }
+ lua_settable(L, -3);
+
+ if (px->table && px->table->id) {
+ lua_pushstring(L, "stktable");
+ hlua_fcn_new_stktable(L, px->table);
+ lua_settable(L, -3);
+ }
+
+ return 1;
+}
+
+static struct proxy *hlua_check_proxy(lua_State *L, int ud)
+{
+ return hlua_checkudata(L, ud, class_proxy_ref);
+}
+
+int hlua_proxy_pause(lua_State *L)
+{
+ struct proxy *px;
+
+ px = hlua_check_proxy(L, 1);
+ /* safe to call without PROXY_LOCK - pause_proxy takes it */
+ pause_proxy(px);
+ return 0;
+}
+
+int hlua_proxy_resume(lua_State *L)
+{
+ struct proxy *px;
+
+ px = hlua_check_proxy(L, 1);
+ /* safe to call without PROXY_LOCK - resume_proxy takes it */
+ resume_proxy(px);
+ return 0;
+}
+
+int hlua_proxy_stop(lua_State *L)
+{
+ struct proxy *px;
+
+ px = hlua_check_proxy(L, 1);
+ /* safe to call without PROXY_LOCK - stop_proxy takes it */
+ stop_proxy(px);
+ return 0;
+}
+
+int hlua_proxy_get_cap(lua_State *L)
+{
+ struct proxy *px;
+ const char *str;
+
+ px = hlua_check_proxy(L, 1);
+ str = proxy_cap_str(px->cap);
+ lua_pushstring(L, str);
+ return 1;
+}
+
+int hlua_proxy_get_stats(lua_State *L)
+{
+ struct proxy *px;
+ int i;
+
+ px = hlua_check_proxy(L, 1);
+ if (px->cap & PR_CAP_BE)
+ stats_fill_be_stats(px, STAT_SHLGNDS, stats, STATS_LEN, NULL);
+ else
+ stats_fill_fe_stats(px, stats, STATS_LEN, NULL);
+ lua_newtable(L);
+ for (i=0; i<ST_F_TOTAL_FIELDS; i++) {
+ lua_pushstring(L, stat_fields[i].name);
+ hlua_fcn_pushfield(L, &stats[i]);
+ lua_settable(L, -3);
+ }
+ return 1;
+}
+
+int hlua_proxy_get_mode(lua_State *L)
+{
+ struct proxy *px;
+ const char *str;
+
+ px = hlua_check_proxy(L, 1);
+ str = proxy_mode_str(px->mode);
+ lua_pushstring(L, str);
+ return 1;
+}
+
+int hlua_proxy_shut_bcksess(lua_State *L)
+{
+ struct proxy *px;
+
+ px = hlua_check_proxy(L, 1);
+ srv_shutdown_backup_streams(px, SF_ERR_KILLED);
+ return 0;
+}
+
+int hlua_fcn_post_init(lua_State *L)
+{
+ struct proxy *px;
+
+ /* get core array. */
+ if (lua_getglobal(L, "core") != LUA_TTABLE)
+ lua_error(L);
+
+ /* Create proxies entry. */
+ lua_pushstring(L, "proxies");
+ lua_newtable(L);
+
+ /* List all proxies. */
+ for (px = proxies_list; px; px = px->next) {
+ if (px->cap & PR_CAP_INT)
+ continue;
+ lua_pushstring(L, px->id);
+ hlua_fcn_new_proxy(L, px);
+ lua_settable(L, -3);
+ }
+
+ /* push "proxies" in "core" */
+ lua_settable(L, -3);
+
+ /* Create proxies entry. */
+ lua_pushstring(L, "frontends");
+ lua_newtable(L);
+
+ /* List all proxies. */
+ for (px = proxies_list; px; px = px->next) {
+ if (!(px->cap & PR_CAP_FE) || (px->cap & PR_CAP_INT))
+ continue;
+ lua_pushstring(L, px->id);
+ hlua_fcn_new_proxy(L, px);
+ lua_settable(L, -3);
+ }
+
+ /* push "frontends" in "core" */
+ lua_settable(L, -3);
+
+ /* Create proxies entry. */
+ lua_pushstring(L, "backends");
+ lua_newtable(L);
+
+ /* List all proxies. */
+ for (px = proxies_list; px; px = px->next) {
+ if (!(px->cap & PR_CAP_BE) || (px->cap & PR_CAP_INT))
+ continue;
+ lua_pushstring(L, px->id);
+ hlua_fcn_new_proxy(L, px);
+ lua_settable(L, -3);
+ }
+
+ /* push "backend" in "core" */
+ lua_settable(L, -3);
+
+ return 1;
+}
+
+/* This Lua function take a string, a list of separators.
+ * It tokenize the input string using the list of separators
+ * as separator.
+ *
+ * The functionreturns a table filled with tokens.
+ */
+int hlua_tokenize(lua_State *L)
+{
+ const char *str;
+ const char *sep;
+ int index;
+ const char *token;
+ const char *p;
+ const char *c;
+ int ignore_empty;
+
+ ignore_empty = 0;
+
+ str = luaL_checkstring(L, 1);
+ sep = luaL_checkstring(L, 2);
+ if (lua_gettop(L) == 3)
+ ignore_empty = hlua_checkboolean(L, 3);
+
+ lua_newtable(L);
+ index = 1;
+ token = str;
+ p = str;
+ while(1) {
+ for (c = sep; *c != '\0'; c++)
+ if (*p == *c)
+ break;
+ if (*p == *c) {
+ if ((!ignore_empty) || (p - token > 0)) {
+ lua_pushlstring(L, token, p - token);
+ lua_rawseti(L, -2, index);
+ index++;
+ }
+ token = p + 1;
+ }
+ if (*p == '\0')
+ break;
+ p++;
+ }
+
+ return 1;
+}
+
+int hlua_parse_addr(lua_State *L)
+{
+ struct net_addr *addr;
+ const char *str = luaL_checkstring(L, 1);
+ unsigned char mask;
+
+ addr = lua_newuserdata(L, sizeof(struct net_addr));
+ if (!addr) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ if (str2net(str, PAT_MF_NO_DNS, &addr->addr.v4.ip, &addr->addr.v4.mask)) {
+ addr->family = AF_INET;
+ return 1;
+ }
+
+ if (str62net(str, &addr->addr.v6.ip, &mask)) {
+ len2mask6(mask, &addr->addr.v6.mask);
+ addr->family = AF_INET6;
+ return 1;
+ }
+
+ lua_pop(L, 1);
+ lua_pushnil(L);
+ return 1;
+}
+
+int hlua_match_addr(lua_State *L)
+{
+ struct net_addr *addr1;
+ struct net_addr *addr2;
+
+ if (!lua_isuserdata(L, 1) ||
+ !lua_isuserdata(L, 2)) {
+ lua_pushboolean(L, 0);
+ return 1;
+ }
+
+ addr1 = lua_touserdata(L, 1);
+ addr2 = lua_touserdata(L, 2);
+
+ if (addr1->family != addr2->family) {
+ lua_pushboolean(L, 0);
+ return 1;
+ }
+
+ if (addr1->family == AF_INET) {
+ if ((addr1->addr.v4.ip.s_addr & addr2->addr.v4.mask.s_addr) ==
+ (addr2->addr.v4.ip.s_addr & addr1->addr.v4.mask.s_addr)) {
+ lua_pushboolean(L, 1);
+ return 1;
+ }
+ } else {
+ int i;
+
+ for (i = 0; i < 16; i += 4) {
+ if ((read_u32(&addr1->addr.v6.ip.s6_addr[i]) &
+ read_u32(&addr2->addr.v6.mask.s6_addr[i])) !=
+ (read_u32(&addr2->addr.v6.ip.s6_addr[i]) &
+ read_u32(&addr1->addr.v6.mask.s6_addr[i])))
+ break;
+ }
+ if (i == 16) {
+ lua_pushboolean(L, 1);
+ return 1;
+ }
+ }
+
+ lua_pushboolean(L, 0);
+ return 1;
+}
+
+static struct my_regex **hlua_check_regex(lua_State *L, int ud)
+{
+ return (hlua_checkudata(L, ud, class_regex_ref));
+}
+
+static int hlua_regex_comp(struct lua_State *L)
+{
+ struct my_regex **regex;
+ const char *str;
+ int cs;
+ char *err;
+
+ str = luaL_checkstring(L, 1);
+ luaL_argcheck(L, lua_isboolean(L, 2), 2, NULL);
+ cs = lua_toboolean(L, 2);
+
+ regex = lua_newuserdata(L, sizeof(*regex));
+
+ err = NULL;
+ if (!(*regex = regex_comp(str, cs, 1, &err))) {
+ lua_pushboolean(L, 0); /* status error */
+ lua_pushstring(L, err); /* Reason */
+ free(err);
+ return 2;
+ }
+
+ lua_pushboolean(L, 1); /* Status ok */
+
+ /* Create object */
+ lua_newtable(L);
+ lua_pushvalue(L, -3); /* Get the userdata pointer. */
+ lua_rawseti(L, -2, 0);
+ lua_rawgeti(L, LUA_REGISTRYINDEX, class_regex_ref);
+ lua_setmetatable(L, -2);
+ return 2;
+}
+
+static int hlua_regex_exec(struct lua_State *L)
+{
+ struct my_regex **regex;
+ const char *str;
+ size_t len;
+ struct buffer *tmp;
+
+ regex = hlua_check_regex(L, 1);
+ str = luaL_checklstring(L, 2, &len);
+
+ if (!*regex) {
+ lua_pushboolean(L, 0);
+ return 1;
+ }
+
+ /* Copy the string because regex_exec2 require a 'char *'
+ * and not a 'const char *'.
+ */
+ tmp = get_trash_chunk();
+ if (len >= tmp->size) {
+ lua_pushboolean(L, 0);
+ return 1;
+ }
+ memcpy(tmp->area, str, len);
+
+ lua_pushboolean(L, regex_exec2(*regex, tmp->area, len));
+
+ return 1;
+}
+
+static int hlua_regex_match(struct lua_State *L)
+{
+ struct my_regex **regex;
+ const char *str;
+ size_t len;
+ regmatch_t pmatch[20];
+ int ret;
+ int i;
+ struct buffer *tmp;
+
+ regex = hlua_check_regex(L, 1);
+ str = luaL_checklstring(L, 2, &len);
+
+ if (!*regex) {
+ lua_pushboolean(L, 0);
+ return 1;
+ }
+
+ /* Copy the string because regex_exec2 require a 'char *'
+ * and not a 'const char *'.
+ */
+ tmp = get_trash_chunk();
+ if (len >= tmp->size) {
+ lua_pushboolean(L, 0);
+ return 1;
+ }
+ memcpy(tmp->area, str, len);
+
+ ret = regex_exec_match2(*regex, tmp->area, len, 20, pmatch, 0);
+ lua_pushboolean(L, ret);
+ lua_newtable(L);
+ if (ret) {
+ for (i = 0; i < 20 && pmatch[i].rm_so != -1; i++) {
+ lua_pushlstring(L, str + pmatch[i].rm_so, pmatch[i].rm_eo - pmatch[i].rm_so);
+ lua_rawseti(L, -2, i + 1);
+ }
+ }
+ return 2;
+}
+
+static int hlua_regex_free(struct lua_State *L)
+{
+ struct my_regex **regex;
+
+ regex = hlua_check_regex(L, 1);
+ regex_free(*regex);
+ *regex = NULL;
+ return 0;
+}
+
+int hlua_fcn_reg_core_fcn(lua_State *L)
+{
+ if (!hlua_concat_init(L))
+ return 0;
+
+ hlua_class_function(L, "now", hlua_now);
+ hlua_class_function(L, "http_date", hlua_http_date);
+ hlua_class_function(L, "imf_date", hlua_imf_date);
+ hlua_class_function(L, "rfc850_date", hlua_rfc850_date);
+ hlua_class_function(L, "asctime_date", hlua_asctime_date);
+ hlua_class_function(L, "concat", hlua_concat_new);
+ hlua_class_function(L, "get_info", hlua_get_info);
+ hlua_class_function(L, "parse_addr", hlua_parse_addr);
+ hlua_class_function(L, "match_addr", hlua_match_addr);
+ hlua_class_function(L, "tokenize", hlua_tokenize);
+
+ /* Create regex object. */
+ lua_newtable(L);
+ hlua_class_function(L, "new", hlua_regex_comp);
+
+ lua_newtable(L); /* The metatable. */
+ lua_pushstring(L, "__index");
+ lua_newtable(L);
+ hlua_class_function(L, "exec", hlua_regex_exec);
+ hlua_class_function(L, "match", hlua_regex_match);
+ lua_rawset(L, -3); /* -> META["__index"] = TABLE */
+ hlua_class_function(L, "__gc", hlua_regex_free);
+
+ lua_pushvalue(L, -1); /* Duplicate the metatable reference. */
+ class_regex_ref = hlua_register_metatable(L, CLASS_REGEX);
+
+ lua_setmetatable(L, -2);
+ lua_setglobal(L, CLASS_REGEX); /* Create global object called Regex */
+
+ /* Create stktable object. */
+ lua_newtable(L);
+ lua_pushstring(L, "__index");
+ lua_newtable(L);
+ hlua_class_function(L, "info", hlua_stktable_info);
+ hlua_class_function(L, "lookup", hlua_stktable_lookup);
+ hlua_class_function(L, "dump", hlua_stktable_dump);
+ lua_settable(L, -3); /* -> META["__index"] = TABLE */
+ class_stktable_ref = hlua_register_metatable(L, CLASS_STKTABLE);
+
+ /* Create listener object. */
+ lua_newtable(L);
+ lua_pushstring(L, "__index");
+ lua_newtable(L);
+ hlua_class_function(L, "get_stats", hlua_listener_get_stats);
+ lua_settable(L, -3); /* -> META["__index"] = TABLE */
+ class_listener_ref = hlua_register_metatable(L, CLASS_LISTENER);
+
+ /* Create server object. */
+ lua_newtable(L);
+ lua_pushstring(L, "__index");
+ lua_newtable(L);
+ hlua_class_function(L, "is_draining", hlua_server_is_draining);
+ hlua_class_function(L, "set_maxconn", hlua_server_set_maxconn);
+ hlua_class_function(L, "get_maxconn", hlua_server_get_maxconn);
+ hlua_class_function(L, "set_weight", hlua_server_set_weight);
+ hlua_class_function(L, "get_weight", hlua_server_get_weight);
+ hlua_class_function(L, "set_addr", hlua_server_set_addr);
+ hlua_class_function(L, "get_addr", hlua_server_get_addr);
+ hlua_class_function(L, "get_stats", hlua_server_get_stats);
+ hlua_class_function(L, "shut_sess", hlua_server_shut_sess);
+ hlua_class_function(L, "set_drain", hlua_server_set_drain);
+ hlua_class_function(L, "set_maint", hlua_server_set_maint);
+ hlua_class_function(L, "set_ready", hlua_server_set_ready);
+ hlua_class_function(L, "check_enable", hlua_server_check_enable);
+ hlua_class_function(L, "check_disable", hlua_server_check_disable);
+ hlua_class_function(L, "check_force_up", hlua_server_check_force_up);
+ hlua_class_function(L, "check_force_nolb", hlua_server_check_force_nolb);
+ hlua_class_function(L, "check_force_down", hlua_server_check_force_down);
+ hlua_class_function(L, "agent_enable", hlua_server_agent_enable);
+ hlua_class_function(L, "agent_disable", hlua_server_agent_disable);
+ hlua_class_function(L, "agent_force_up", hlua_server_agent_force_up);
+ hlua_class_function(L, "agent_force_down", hlua_server_agent_force_down);
+ lua_settable(L, -3); /* -> META["__index"] = TABLE */
+ class_server_ref = hlua_register_metatable(L, CLASS_SERVER);
+
+ /* Create proxy object. */
+ lua_newtable(L);
+ lua_pushstring(L, "__index");
+ lua_newtable(L);
+ hlua_class_function(L, "pause", hlua_proxy_pause);
+ hlua_class_function(L, "resume", hlua_proxy_resume);
+ hlua_class_function(L, "stop", hlua_proxy_stop);
+ hlua_class_function(L, "shut_bcksess", hlua_proxy_shut_bcksess);
+ hlua_class_function(L, "get_cap", hlua_proxy_get_cap);
+ hlua_class_function(L, "get_mode", hlua_proxy_get_mode);
+ hlua_class_function(L, "get_stats", hlua_proxy_get_stats);
+ lua_settable(L, -3); /* -> META["__index"] = TABLE */
+ class_proxy_ref = hlua_register_metatable(L, CLASS_PROXY);
+
+ return 5;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 01:40:49 +0000