2011-09-13 21:26:12 +02:00
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// ndppd - NDP Proxy Daemon
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// Copyright (C) 2011 Daniel Adolfsson <daniel.adolfsson@tuhox.com>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <cstdio>
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#include <cstdarg>
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#include <netinet/ip6.h>
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#include <confuse.h>
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#include "ndppd.h"
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__NDPPD_NS_BEGIN
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void conf::error_printf(::cfg_t *cfg, const char *fmt, va_list ap)
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{
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char buf[256];
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if(::vsnprintf(buf, sizeof(buf), fmt, ap) <= 0)
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return;
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ERR("[Config] %s", buf);
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}
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int conf::validate_rule(::cfg_t *cfg, ::cfg_opt_t *opt)
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{
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struct in6_addr addr, mask;
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::cfg_t *rule_cfg = ::cfg_opt_getnsec(opt, ::cfg_opt_size(opt) - 1);
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if(!rule_cfg)
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return -1;
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if(::cfg_getbool(rule_cfg, "static") == ::cfg_true)
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{
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if(::cfg_getstr(rule_cfg, "iface") != 0)
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{
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::cfg_error(rule_cfg, "'static' cannot be 'true' if 'iface' is set");
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return -1;
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}
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}
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else
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{
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if(::cfg_getstr(rule_cfg, "iface") == 0)
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{
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::cfg_error(rule_cfg, "'iface' must be set unless 'static' is 'true'");
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return -1;
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}
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}
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return 0;
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}
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bool conf::setup(::cfg_t *cfg)
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{
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int i;
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for(i = 0; i < ::cfg_size(cfg, "proxy"); i++)
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{
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::cfg_t *proxy_cfg = ::cfg_getnsec(cfg, "proxy", i);
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if(proxy_cfg)
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{
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::cfg_t *rule_cfg;
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int i2;
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2011-09-16 22:32:41 +02:00
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strong_ptr<proxy> pr = proxy::open(::cfg_title(proxy_cfg));
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if(pr.is_null())
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continue;
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2011-09-13 21:26:12 +02:00
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for(i2 = 0; i2 < ::cfg_size(proxy_cfg, "rule"); i2++)
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{
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::cfg_t *rule_cfg;
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if(!(rule_cfg = ::cfg_getnsec(proxy_cfg, "rule", i)))
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continue;
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address addr(::cfg_title(rule_cfg));
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std::string ifname(::cfg_getstr(rule_cfg, "iface"));
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if(ifname == "static")
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pr->add_rule(addr);
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else
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2011-09-16 17:06:36 +02:00
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pr->add_rule(addr, iface::open_ifd(ifname));
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2011-09-13 21:26:12 +02:00
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}
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}
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}
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return 0;
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}
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bool conf::load(const std::string& path)
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{
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::cfg_t *cfg;
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int i, sz;
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static ::cfg_opt_t rule_opts[] =
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{
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CFG_BOOL((char *)"static", ::cfg_false, CFGF_NONE),
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CFG_STR((char *)"iface", (char *)"static", CFGF_NONE),
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CFG_END()
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};
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static ::cfg_opt_t proxy_opts[] =
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{
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CFG_SEC((char *)"rule", rule_opts, CFGF_MULTI | CFGF_TITLE),
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CFG_END()
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};
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static ::cfg_opt_t opts[] =
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{
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CFG_SEC((char *)"proxy", proxy_opts, CFGF_MULTI | CFGF_TITLE),
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CFG_FUNC((char *)"include", &::cfg_include),
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CFG_END()
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};
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cfg = ::cfg_init(opts, CFGF_NOCASE);
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::cfg_set_error_function(cfg, &error_printf);
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::cfg_set_validate_func(cfg, "proxy|rule", &validate_rule);
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switch(::cfg_parse(cfg, path.c_str()))
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{
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case CFG_SUCCESS:
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break;
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default:
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ERR("Failed to load configuration file '%s'", path.c_str());
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return false;
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}
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setup(cfg);
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::cfg_free(cfg);
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return true;
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}
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__NDPPD_NS_END
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