Several large changes for the upcoming 0.2.2 version
- Bugfixes. - New 'auto' configuration to be used in a 'rule' section. When using this option, the routing table /proc/net/ipv6_route will be used to auto-detect which interface to use when forwarding solicitation messages. - New 'route' class to resolve which interface to query when using 'auto' configuration. - Cleaned up the code some more.
This commit is contained in:
Daniel Adolfsson
parent
ab0ebe09ff
commit
6723f2f4b6
2
Makefile
2
Makefile
@ -15,7 +15,7 @@ SBINDIR ?= ${DESTDIR}${PREFIX}/sbin
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LIBS =
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OBJS = src/logger.o src/ndppd.o src/iface.o src/proxy.o src/address.o \
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src/rule.o src/session.o src/conf.o
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src/rule.o src/session.o src/conf.o src/route.o
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all: ndppd ndppd.1.gz ndppd.conf.5.gz
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@ -53,7 +53,7 @@ address::address(const std::string& str)
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parse_string(str);
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}
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address::address(const char *str)
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address::address(const char* str)
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{
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parse_string(str);
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}
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@ -125,13 +125,16 @@ void address::reset()
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int address::prefix() const
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{
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if (!_mask.s6_addr[0])
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if (!_mask.s6_addr[0]) {
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return 0;
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}
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for (int p = 0; p < 128; p++) {
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int byi = p / 8, bii = 7 - (p % 8);
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if (!(_mask.s6_addr[byi] & (1 << bii)))
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if (!(_mask.s6_addr[byi]& (1 << bii))) {
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return p;
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}
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}
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return 128;
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@ -139,40 +142,58 @@ int address::prefix() const
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void address::prefix(int pf)
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{
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if ((pf < 0) || (pf > 128))
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const unsigned char maskbit[] = {
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0x00, 0x80, 0xc0, 0xe0, 0xf0,
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0xf8, 0xfc, 0xfe, 0xff
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};
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if (pf >= 128) {
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_mask.s6_addr32[0] = 0xffffffff;
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_mask.s6_addr32[1] = 0xffffffff;
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_mask.s6_addr32[2] = 0xffffffff;
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_mask.s6_addr32[3] = 0xffffffff;
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return;
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} else {
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_mask.s6_addr32[0] = 0;
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_mask.s6_addr32[1] = 0;
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_mask.s6_addr32[2] = 0;
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_mask.s6_addr32[3] = 0;
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_mask.s6_addr32[0] = 0;
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_mask.s6_addr32[1] = 0;
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_mask.s6_addr32[2] = 0;
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_mask.s6_addr32[3] = 0;
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while (pf--) {
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int byi = pf / 8, bii = 7 - (pf % 8);
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_mask.s6_addr[byi] |= 1 << bii;
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if (pf <= 0) {
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return;
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}
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}
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int offset = pf / 8, n;
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for (n = 0; n < offset; n++) {
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_mask.s6_addr[n] = 0xff;
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}
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_mask.s6_addr[offset] = maskbit[pf % 8];
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}
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const std::string address::to_string() const
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{
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char buf[INET6_ADDRSTRLEN + 8];
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if (!inet_ntop(AF_INET6, &_addr, buf, INET6_ADDRSTRLEN))
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if (!inet_ntop(AF_INET6,& _addr, buf, INET6_ADDRSTRLEN))
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return "::1";
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// TODO: What to do about invalid ip?
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int p;
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if ((p = prefix()) < 128)
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if ((p = prefix()) < 128) {
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sprintf(buf + strlen(buf), "/%d", p);
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}
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return buf;
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}
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bool address::parse_string(const std::string& str)
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{
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char buf[INET6_ADDRSTRLEN], *b;
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char buf[INET6_ADDRSTRLEN],* b;
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int sz, pfx;
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sz = 0;
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@ -180,33 +201,38 @@ bool address::parse_string(const std::string& str)
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reset();
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const char *p = str.c_str();
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const char* p = str.c_str();
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while (*p && isspace(*p))
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p++;
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while (*p) {
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if ((*p == '/') || isspace(*p))
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if ((*p == '/') || isspace(*p)) {
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break;
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}
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if ((*p != ':') && !isxdigit(*p))
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if ((*p != ':') && !isxdigit(*p)) {
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return false;
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}
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if (sz >= (INET6_ADDRSTRLEN - 1))
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if (sz >= (INET6_ADDRSTRLEN - 1)) {
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return false;
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}
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*b++ = *p++;
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* b++ =* p++;
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sz++;
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}
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*b = '\0';
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* b = '\0';
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if (inet_pton(AF_INET6, buf, &_addr) <= 0)
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if (inet_pton(AF_INET6, buf,& _addr) <= 0) {
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return false;
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}
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while (*p && isspace(*p))
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while (*p && isspace(*p)) {
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p++;
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}
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if (*p == '\0') {
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_mask.s6_addr32[0] = 0xffffffff;
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@ -232,11 +258,11 @@ bool address::parse_string(const std::string& str)
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if (sz > 3)
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return false;
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*b++ = *p++;
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* b++ =* p++;
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sz++;
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}
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*b = '\0';
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* b = '\0';
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prefix(atoi(buf));
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@ -24,16 +24,12 @@ NDPPD_NS_BEGIN
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class iface;
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class address
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{
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private:
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struct in6_addr _addr, _mask;
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class address {
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public:
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address();
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address(const address& addr);
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address(const std::string& str);
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address(const char *str);
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address(const char* str);
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address(const in6_addr& addr);
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address(const in6_addr& addr, const in6_addr& mask);
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address(const in6_addr& addr, int prefix);
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@ -65,6 +61,8 @@ public:
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operator std::string() const;
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private:
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struct in6_addr _addr, _mask;
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};
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NDPPD_NS_END
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102
src/conf.cc
102
src/conf.cc
@ -34,12 +34,22 @@ conf::conf() :
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}
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const std::string &conf::value() const
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conf::operator int() const
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{
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return _value;
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return as_int();
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}
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bool conf::bool_value() const
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conf::operator const std::string&() const
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{
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return as_str();
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}
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conf::operator bool() const
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{
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return as_bool();
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}
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bool conf::as_bool() const
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{
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if (!strcasecmp(_value.c_str(), "true") || !strcasecmp(_value.c_str(), "yes"))
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return true;
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@ -47,31 +57,36 @@ bool conf::bool_value() const
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return false;
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}
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int conf::int_value() const
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const std::string& conf::as_str() const
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{
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return _value;
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}
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int conf::as_int() const
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{
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return atoi(_value.c_str());
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}
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void conf::value(const std::string &value)
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bool conf::empty() const
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{
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_value = value;
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return _value == "";
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}
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ptr<conf> conf::load(const std::string &path)
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ptr<conf> conf::load(const std::string& path)
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{
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try {
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std::ifstream ifs;
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ifs.exceptions(std::ifstream::failbit | std::ifstream::badbit);
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ifs.open(path.c_str(), std::ios::in);
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ifs.exceptions(std::ifstream::badbit);
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std::string buf((std::istreambuf_iterator<char>(ifs)), std::istreambuf_iterator<char>());
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const char *c_buf = buf.c_str();
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const char* c_buf = buf.c_str();
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ptr<conf> cf(new conf);
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if (cf->parse_block(&c_buf)) {
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logger l(LOG_DEBUG);
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cf->dump(l, 0);
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cf->dump(LOG_DEBUG);
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return cf;
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}
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@ -88,7 +103,7 @@ bool conf::is_block() const
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return _is_block;
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}
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const char *conf::skip(const char *str, bool all)
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const char* conf::skip(const char* str, bool all)
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{
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if (!all) {
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while (*str && (*str != '\n') && isspace(*str))
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@ -127,18 +142,18 @@ const char *conf::skip(const char *str, bool all)
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return str;
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}
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bool conf::parse_block(const char **str)
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bool conf::parse_block(const char** str)
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{
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const char *p = *str;
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const char* p = *str;
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_is_block = true;
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while (*p) {
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std::stringstream ss;
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p = skip(p);
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p = skip(p, true);
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if (*p == '}') {
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if ((*p == '}') || !*p) {
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*str = p;
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return true;
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}
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@ -164,9 +179,9 @@ bool conf::parse_block(const char **str)
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return true;
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}
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bool conf::parse(const char **str)
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bool conf::parse(const char** str)
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{
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const char *p = *str;
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const char* p = *str;
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std::stringstream ss;
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p = skip(p, false);
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@ -175,12 +190,14 @@ bool conf::parse(const char **str)
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return false;
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} else if ((*p == '\'') || (*p == '"')) {
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for (char e = *p++; *p && (*p != e); p++)
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ss << *p;
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ss <<* p;
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} else if (isalnum(*p)) {
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while (*p && (isalnum(*p) || strchr(":/.", *p)))
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ss << *p++;
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while (*p && (isalnum(*p) || strchr(":/.",* p)))
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ss <<* p++;
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} else {
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return false;
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_value = "";
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*str = p;
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return true;
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}
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_value = ss.str();
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@ -203,13 +220,13 @@ bool conf::parse(const char **str)
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return true;
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}
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void conf::dump() const
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void conf::dump(int pri) const
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{
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logger l(LOG_ERR);
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logger l(pri);
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dump(l, 0);
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}
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void conf::dump(logger &l, int level) const
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void conf::dump(logger& l, int level) const
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{
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int i;
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@ -238,23 +255,42 @@ void conf::dump(logger &l, int level) const
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l << logger::endl;
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}
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ptr<conf> conf::operator[](const std::string& name) const
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ptr<conf> conf::operator()(const std::string& name, int index) const
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{
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std::multimap<std::string, ptr<conf> >::const_iterator it;
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if ((it = _map.find(name)) == _map.end())
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return ptr<conf>();
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else
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return it->second;
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return find(name, index);
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}
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std::vector<ptr<conf> > conf::find(const std::string& name) const
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ptr<conf> conf::find(const std::string& name, int index) const
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{
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std::vector<ptr<conf> > vec;
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std::multimap<std::string, ptr<conf> >::const_iterator it;
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for (it = _map.find(name); it != _map.end(); it++) {
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if (index-- <= 0)
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return it->second;
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}
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return ptr<conf>();
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}
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ptr<conf> conf::operator[](const std::string& name) const
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{
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return find(name, 0);
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}
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std::vector<ptr<conf> > conf::find_all(const std::string& name) const
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{
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std::vector<ptr<conf> > vec;
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std::multimap<std::string, ptr<conf> >::const_iterator it;
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std::pair<std::multimap<std::string, ptr<conf> >::const_iterator,
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std::multimap<std::string, ptr<conf> >::const_iterator> ret;
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ret = _map.equal_range(name);
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for (it = ret.first; it != ret.second; it++) {
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vec.push_back(it->second);
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}
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return vec;
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}
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41
src/conf.h
41
src/conf.h
@ -25,8 +25,7 @@
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NDPPD_NS_BEGIN
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class conf
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{
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class conf {
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public:
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private:
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@ -36,33 +35,39 @@ private:
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std::multimap<std::string, ptr<conf> > _map;
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void dump(logger &l, int level) const;
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void dump(logger& l, int level) const;
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static const char *skip(const char *str, bool all = true);
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static const char* skip(const char* str, bool all = true);
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bool parse_block(const char **str);
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bool parse_block(const char* *str);
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|
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bool parse(const char **str);
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bool parse(const char* *str);
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public:
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conf();
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const std::string &value() const;
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|
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bool bool_value() const;
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|
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int int_value() const;
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|
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void value(const std::string &value);
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static ptr<conf> load(const std::string &path);
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static ptr<conf> load(const std::string& path);
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bool is_block() const;
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|
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ptr<conf> operator[](const std::string &name) const;
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std::vector<ptr<conf> > find(const std::string &name) const;
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ptr<conf> operator[](const std::string& name) const;
|
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ptr<conf> operator()(const std::string& name, int index = 0) const;
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|
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void dump() const;
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operator const std::string&() const;
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operator int() const;
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operator bool() const;
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|
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bool as_bool() const;
|
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const std::string& as_str() const;
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int as_int() const;
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|
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bool empty() const;
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|
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std::vector<ptr<conf> > find_all(const std::string& name) const;
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|
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ptr<conf> find(const std::string& name, int index = 0) const;
|
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|
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void dump(int pri = LOG_INFO) const;
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|
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operator const std::string&();
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|
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|
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114
src/iface.cc
114
src/iface.cc
@ -106,7 +106,7 @@ ptr<iface> iface::open_pfd(const std::string& name)
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return ptr<iface>();
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}
|
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|
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if (bind(fd, (struct sockaddr *)&lladdr, sizeof(struct sockaddr_ll)) < 0) {
|
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if (bind(fd, (struct sockaddr* )&lladdr, sizeof(struct sockaddr_ll)) < 0) {
|
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close(fd);
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logger::error() << "Failed to bind to interface '" << name << "'";
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return ptr<iface>();
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@ -116,7 +116,7 @@ ptr<iface> iface::open_pfd(const std::string& name)
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|
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int on = 1;
|
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|
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if (ioctl(fd, FIONBIO, (char *)&on) < 0) {
|
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if (ioctl(fd, FIONBIO, (char* )&on) < 0) {
|
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close(fd);
|
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logger::error() << "Failed to switch to non-blocking on interface '" << name << "'";
|
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return ptr<iface>();
|
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@ -131,17 +131,17 @@ ptr<iface> iface::open_pfd(const std::string& name)
|
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// Load the ether_type.
|
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BPF_STMT(BPF_LD | BPF_H | BPF_ABS,
|
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offsetof(struct ether_header, ether_type)),
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// Bail if it's *not* ETHERTYPE_IPV6.
|
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// Bail if it's* not* ETHERTYPE_IPV6.
|
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BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ETHERTYPE_IPV6, 0, 5),
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// Load the next header type.
|
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BPF_STMT(BPF_LD | BPF_B | BPF_ABS,
|
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sizeof(struct ether_header) + offsetof(struct ip6_hdr, ip6_nxt)),
|
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// Bail if it's *not* IPPROTO_ICMPV6.
|
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// Bail if it's* not* IPPROTO_ICMPV6.
|
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BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, IPPROTO_ICMPV6, 0, 3),
|
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// Load the ICMPv6 type.
|
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BPF_STMT(BPF_LD | BPF_B | BPF_ABS,
|
||||
sizeof(struct ether_header) + sizeof(ip6_hdr) + offsetof(struct icmp6_hdr, icmp6_type)),
|
||||
// Bail if it's *not* ND_NEIGHBOR_SOLICIT.
|
||||
// Bail if it's* not* ND_NEIGHBOR_SOLICIT.
|
||||
BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ND_NEIGHBOR_SOLICIT, 0, 1),
|
||||
// Keep packet.
|
||||
BPF_STMT(BPF_RET | BPF_K, -1),
|
||||
@ -149,10 +149,10 @@ ptr<iface> iface::open_pfd(const std::string& name)
|
||||
BPF_STMT(BPF_RET | BPF_K, 0)
|
||||
};
|
||||
|
||||
fprog.filter = (struct sock_filter *)filter;
|
||||
fprog.filter = (struct sock_filter* )filter;
|
||||
fprog.len = 8;
|
||||
|
||||
if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)) < 0) {
|
||||
if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER,& fprog, sizeof(fprog)) < 0) {
|
||||
logger::error() << "Failed to set filter";
|
||||
return ptr<iface>();
|
||||
}
|
||||
@ -190,7 +190,7 @@ ptr<iface> iface::open_ifd(const std::string& name)
|
||||
strncpy(ifr.ifr_name, name.c_str(), IFNAMSIZ - 1);
|
||||
ifr.ifr_name[IFNAMSIZ - 1] = '\0';
|
||||
|
||||
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, &ifr, sizeof(ifr)) < 0) {
|
||||
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,& ifr, sizeof(ifr)) < 0) {
|
||||
close(fd);
|
||||
logger::error() << "Failed to bind to interface '" << name << "'";
|
||||
return ptr<iface>();
|
||||
@ -202,25 +202,25 @@ ptr<iface> iface::open_ifd(const std::string& name)
|
||||
strncpy(ifr.ifr_name, name.c_str(), IFNAMSIZ - 1);
|
||||
ifr.ifr_name[IFNAMSIZ - 1] = '\0';
|
||||
|
||||
if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0) {
|
||||
if (ioctl(fd, SIOCGIFHWADDR,& ifr) < 0) {
|
||||
close(fd);
|
||||
logger::error() << "Failed to detect link-layer address for interface '" << name << "'";
|
||||
return ptr<iface>();
|
||||
}
|
||||
|
||||
logger::debug() << "fd=" << fd << ", hwaddr=" << ether_ntoa((const struct ether_addr *)&ifr.ifr_hwaddr.sa_data);;
|
||||
logger::debug() << "fd=" << fd << ", hwaddr=" << ether_ntoa((const struct ether_addr* )&ifr.ifr_hwaddr.sa_data);;
|
||||
|
||||
// Set max hops.
|
||||
|
||||
int hops = 255;
|
||||
|
||||
if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hops, sizeof(hops)) < 0) {
|
||||
if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,& hops, sizeof(hops)) < 0) {
|
||||
close(fd);
|
||||
logger::error() << "iface::open_ifd() failed IPV6_MULTICAST_HOPS";
|
||||
return ptr<iface>();
|
||||
}
|
||||
|
||||
if (setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &hops, sizeof(hops)) < 0) {
|
||||
if (setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS,& hops, sizeof(hops)) < 0) {
|
||||
close(fd);
|
||||
logger::error() << "iface::open_ifd() failed IPV6_UNICAST_HOPS";
|
||||
return ptr<iface>();
|
||||
@ -230,7 +230,7 @@ ptr<iface> iface::open_ifd(const std::string& name)
|
||||
|
||||
int on = 1;
|
||||
|
||||
if (ioctl(fd, FIONBIO, (char *)&on) < 0) {
|
||||
if (ioctl(fd, FIONBIO, (char* )&on) < 0) {
|
||||
close(fd);
|
||||
logger::error() << "Failed to switch to non-blocking on interface '" << name << "'";
|
||||
return ptr<iface>();
|
||||
@ -240,9 +240,9 @@ ptr<iface> iface::open_ifd(const std::string& name)
|
||||
|
||||
struct icmp6_filter filter;
|
||||
ICMP6_FILTER_SETBLOCKALL(&filter);
|
||||
ICMP6_FILTER_SETPASS(ND_NEIGHBOR_ADVERT, &filter);
|
||||
ICMP6_FILTER_SETPASS(ND_NEIGHBOR_ADVERT,& filter);
|
||||
|
||||
if (setsockopt(fd, IPPROTO_ICMPV6, ICMP6_FILTER, &filter, sizeof(filter)) < 0) {
|
||||
if (setsockopt(fd, IPPROTO_ICMPV6, ICMP6_FILTER,& filter, sizeof(filter)) < 0) {
|
||||
logger::error() << "Failed to set filter";
|
||||
return ptr<iface>();
|
||||
}
|
||||
@ -270,7 +270,7 @@ ptr<iface> iface::open_ifd(const std::string& name)
|
||||
return ifa;
|
||||
}
|
||||
|
||||
ssize_t iface::read(int fd, struct sockaddr *saddr, uint8_t *msg, size_t size)
|
||||
ssize_t iface::read(int fd, struct sockaddr* saddr, uint8_t* msg, size_t size)
|
||||
{
|
||||
struct msghdr mhdr;
|
||||
struct iovec iov;
|
||||
@ -286,10 +286,10 @@ ssize_t iface::read(int fd, struct sockaddr *saddr, uint8_t *msg, size_t size)
|
||||
memset(&mhdr, 0, sizeof(mhdr));
|
||||
mhdr.msg_name = (caddr_t)saddr;
|
||||
mhdr.msg_namelen = sizeof(struct sockaddr);
|
||||
mhdr.msg_iov = &iov;
|
||||
mhdr.msg_iov =& iov;
|
||||
mhdr.msg_iovlen = 1;
|
||||
|
||||
if ((len = recvmsg(fd, &mhdr, 0)) < 0)
|
||||
if ((len = recvmsg(fd,& mhdr, 0)) < 0)
|
||||
return -1;
|
||||
|
||||
if (len < sizeof(struct icmp6_hdr))
|
||||
@ -300,7 +300,7 @@ ssize_t iface::read(int fd, struct sockaddr *saddr, uint8_t *msg, size_t size)
|
||||
return len;
|
||||
}
|
||||
|
||||
ssize_t iface::write(int fd, const address& daddr, const uint8_t *msg, size_t size)
|
||||
ssize_t iface::write(int fd, const address& daddr, const uint8_t* msg, size_t size)
|
||||
{
|
||||
struct sockaddr_in6 daddr_tmp;
|
||||
struct msghdr mhdr;
|
||||
@ -309,7 +309,7 @@ ssize_t iface::write(int fd, const address& daddr, const uint8_t *msg, size_t si
|
||||
memset(&daddr_tmp, 0, sizeof(struct sockaddr_in6));
|
||||
daddr_tmp.sin6_family = AF_INET6;
|
||||
daddr_tmp.sin6_port = htons(IPPROTO_ICMPV6); // Needed?
|
||||
memcpy(&daddr_tmp.sin6_addr, &daddr.const_addr(), sizeof(struct in6_addr));
|
||||
memcpy(&daddr_tmp.sin6_addr,& daddr.const_addr(), sizeof(struct in6_addr));
|
||||
|
||||
iov.iov_len = size;
|
||||
iov.iov_base = (caddr_t)msg;
|
||||
@ -317,14 +317,14 @@ ssize_t iface::write(int fd, const address& daddr, const uint8_t *msg, size_t si
|
||||
memset(&mhdr, 0, sizeof(mhdr));
|
||||
mhdr.msg_name = (caddr_t)&daddr_tmp;
|
||||
mhdr.msg_namelen = sizeof(sockaddr_in6);
|
||||
mhdr.msg_iov = &iov;
|
||||
mhdr.msg_iov =& iov;
|
||||
mhdr.msg_iovlen = 1;
|
||||
|
||||
logger::debug() << "iface::write() daddr=" << daddr.to_string() << ", len=" << size;
|
||||
|
||||
int len;
|
||||
|
||||
if ((len = sendmsg(fd, &mhdr, 0)) < 0)
|
||||
if ((len = sendmsg(fd,& mhdr, 0)) < 0)
|
||||
return -1;
|
||||
|
||||
return len;
|
||||
@ -336,17 +336,17 @@ ssize_t iface::read_solicit(address& saddr, address& daddr, address& taddr)
|
||||
uint8_t msg[256];
|
||||
ssize_t len;
|
||||
|
||||
if ((len = read(_pfd, (struct sockaddr *)&t_saddr, msg, sizeof(msg))) < 0)
|
||||
if ((len = read(_pfd, (struct sockaddr* )&t_saddr, msg, sizeof(msg))) < 0)
|
||||
return -1;
|
||||
|
||||
struct ip6_hdr *ip6h =
|
||||
(struct ip6_hdr *)(msg + ETH_HLEN);
|
||||
struct ip6_hdr* ip6h =
|
||||
(struct ip6_hdr* )(msg + ETH_HLEN);
|
||||
|
||||
struct icmp6_hdr *icmph =
|
||||
(struct icmp6_hdr *)(msg + ETH_HLEN + sizeof( struct ip6_hdr));
|
||||
struct icmp6_hdr* icmph =
|
||||
(struct icmp6_hdr* )(msg + ETH_HLEN + sizeof( struct ip6_hdr));
|
||||
|
||||
struct nd_neighbor_solicit *ns =
|
||||
(struct nd_neighbor_solicit *)(msg + ETH_HLEN + sizeof( struct ip6_hdr));
|
||||
struct nd_neighbor_solicit* ns =
|
||||
(struct nd_neighbor_solicit* )(msg + ETH_HLEN + sizeof( struct ip6_hdr));
|
||||
|
||||
taddr = ns->nd_ns_target;
|
||||
daddr = ip6h->ip6_dst;
|
||||
@ -363,20 +363,20 @@ ssize_t iface::write_solicit(const address& taddr)
|
||||
|
||||
memset(buf, 0, sizeof(buf));
|
||||
|
||||
struct nd_neighbor_solicit *ns =
|
||||
(struct nd_neighbor_solicit *)&buf[0];
|
||||
struct nd_neighbor_solicit* ns =
|
||||
(struct nd_neighbor_solicit* )&buf[0];
|
||||
|
||||
struct nd_opt_hdr *opt =
|
||||
(struct nd_opt_hdr *)&buf[sizeof(struct nd_neighbor_solicit)];
|
||||
struct nd_opt_hdr* opt =
|
||||
(struct nd_opt_hdr* )&buf[sizeof(struct nd_neighbor_solicit)];
|
||||
|
||||
opt->nd_opt_type = ND_OPT_SOURCE_LINKADDR;
|
||||
opt->nd_opt_len = 1;
|
||||
|
||||
ns->nd_ns_type = ND_NEIGHBOR_SOLICIT;
|
||||
|
||||
memcpy(&ns->nd_ns_target, &taddr.const_addr(), sizeof(struct in6_addr));
|
||||
memcpy(&ns->nd_ns_target,& taddr.const_addr(), sizeof(struct in6_addr));
|
||||
|
||||
memcpy(buf + sizeof(struct nd_neighbor_solicit) + sizeof(struct nd_opt_hdr), &hwaddr, 6);
|
||||
memcpy(buf + sizeof(struct nd_neighbor_solicit) + sizeof(struct nd_opt_hdr),& hwaddr, 6);
|
||||
|
||||
// FIXME: Alright, I'm lazy.
|
||||
static address multicast("ff02::1:ff00:0000");
|
||||
@ -391,7 +391,7 @@ ssize_t iface::write_solicit(const address& taddr)
|
||||
|
||||
logger::debug() << "iface::write_solicit() taddr=" << taddr.to_string() << ", daddr=" << daddr.to_string();
|
||||
|
||||
return write(_ifd, daddr, (uint8_t *)buf, sizeof(struct nd_neighbor_solicit) + sizeof(struct nd_opt_hdr) + 6);
|
||||
return write(_ifd, daddr, (uint8_t* )buf, sizeof(struct nd_neighbor_solicit) + sizeof(struct nd_opt_hdr) + 6);
|
||||
}
|
||||
|
||||
ssize_t iface::write_advert(const address& daddr, const address& taddr, bool router)
|
||||
@ -400,11 +400,11 @@ ssize_t iface::write_advert(const address& daddr, const address& taddr, bool rou
|
||||
|
||||
memset(buf, 0, sizeof(buf));
|
||||
|
||||
struct nd_neighbor_advert *na =
|
||||
(struct nd_neighbor_advert *)&buf[0];
|
||||
struct nd_neighbor_advert* na =
|
||||
(struct nd_neighbor_advert* )&buf[0];
|
||||
|
||||
struct nd_opt_hdr *opt =
|
||||
(struct nd_opt_hdr *)&buf[sizeof(struct nd_neighbor_advert)];
|
||||
struct nd_opt_hdr* opt =
|
||||
(struct nd_opt_hdr* )&buf[sizeof(struct nd_neighbor_advert)];
|
||||
|
||||
opt->nd_opt_type = ND_OPT_TARGET_LINKADDR;
|
||||
opt->nd_opt_len = 1;
|
||||
@ -412,13 +412,13 @@ ssize_t iface::write_advert(const address& daddr, const address& taddr, bool rou
|
||||
na->nd_na_type = ND_NEIGHBOR_ADVERT;
|
||||
na->nd_na_flags_reserved = ND_NA_FLAG_SOLICITED | (router ? ND_NA_FLAG_ROUTER : 0);
|
||||
|
||||
memcpy(&na->nd_na_target, &taddr.const_addr(), sizeof(struct in6_addr));
|
||||
memcpy(&na->nd_na_target,& taddr.const_addr(), sizeof(struct in6_addr));
|
||||
|
||||
memcpy(buf + sizeof(struct nd_neighbor_advert) + sizeof(struct nd_opt_hdr), &hwaddr, 6);
|
||||
memcpy(buf + sizeof(struct nd_neighbor_advert) + sizeof(struct nd_opt_hdr),& hwaddr, 6);
|
||||
|
||||
logger::debug() << "iface::write_advert() daddr=" << daddr.to_string() << ", taddr=" << taddr.to_string();
|
||||
|
||||
return write(_ifd, daddr, (uint8_t *)buf, sizeof(struct nd_neighbor_advert) +
|
||||
return write(_ifd, daddr, (uint8_t* )buf, sizeof(struct nd_neighbor_advert) +
|
||||
sizeof(struct nd_opt_hdr) + 6);
|
||||
}
|
||||
|
||||
@ -428,15 +428,15 @@ ssize_t iface::read_advert(address& saddr, address& taddr)
|
||||
uint8_t msg[256];
|
||||
ssize_t len;
|
||||
|
||||
if ((len = read(_ifd, (struct sockaddr *)&t_saddr, msg, sizeof(msg))) < 0)
|
||||
if ((len = read(_ifd, (struct sockaddr* )&t_saddr, msg, sizeof(msg))) < 0)
|
||||
return -1;
|
||||
|
||||
saddr = t_saddr.sin6_addr;
|
||||
|
||||
if (((struct icmp6_hdr *)msg)->icmp6_type != ND_NEIGHBOR_ADVERT)
|
||||
if (((struct icmp6_hdr* )msg)->icmp6_type != ND_NEIGHBOR_ADVERT)
|
||||
return -1;
|
||||
|
||||
taddr = ((struct nd_neighbor_solicit *)msg)->nd_ns_target;
|
||||
taddr = ((struct nd_neighbor_solicit* )msg)->nd_ns_target;
|
||||
|
||||
logger::debug() << "iface::read_advert() saddr=" << saddr.to_string() << ", taddr=" << taddr.to_string() << ", len=" << len;
|
||||
|
||||
@ -445,7 +445,7 @@ ssize_t iface::read_advert(address& saddr, address& taddr)
|
||||
|
||||
void iface::fixup_pollfds()
|
||||
{
|
||||
_pollfds.resize(_map.size() * 2);
|
||||
_pollfds.resize(_map.size()* 2);
|
||||
|
||||
int i = 0;
|
||||
|
||||
@ -488,7 +488,7 @@ int iface::poll_all()
|
||||
return 0;
|
||||
}
|
||||
|
||||
assert(_pollfds.size() == _map.size() * 2);
|
||||
assert(_pollfds.size() == _map.size()* 2);
|
||||
|
||||
int len;
|
||||
|
||||
@ -506,13 +506,15 @@ int iface::poll_all()
|
||||
f_it != _pollfds.end(); f_it++) {
|
||||
assert(i_it != _map.end());
|
||||
|
||||
if (i && !(i % 2))
|
||||
if (i && !(i % 2)) {
|
||||
i_it++;
|
||||
}
|
||||
|
||||
bool is_pfd = i++ % 2;
|
||||
|
||||
if (!(f_it->revents & POLLIN))
|
||||
if (!(f_it->revents& POLLIN)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
ptr<iface> ifa = i_it->second;
|
||||
|
||||
@ -524,8 +526,9 @@ int iface::poll_all()
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!saddr.is_unicast() || !daddr.is_multicast())
|
||||
if (!saddr.is_unicast() || !daddr.is_multicast()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
ifa->_pr->handle_solicit(saddr, daddr, taddr);
|
||||
} else {
|
||||
@ -536,7 +539,8 @@ int iface::poll_all()
|
||||
|
||||
for (std::list<weak_ptr<session> >::iterator s_it = ifa->_sessions.begin();
|
||||
s_it != ifa->_sessions.end(); s_it++) {
|
||||
const ptr<session> sess = *s_it;
|
||||
const ptr<session> sess =* s_it;
|
||||
|
||||
if ((sess->taddr() == taddr) && (sess->status() == session::WAITING)) {
|
||||
sess->handle_advert();
|
||||
break;
|
||||
@ -558,10 +562,10 @@ int iface::allmulti(int state)
|
||||
|
||||
strncpy(ifr.ifr_name, _name.c_str(), IFNAMSIZ);
|
||||
|
||||
if (ioctl(_pfd, SIOCGIFFLAGS, &ifr) < 0)
|
||||
if (ioctl(_pfd, SIOCGIFFLAGS,& ifr) < 0)
|
||||
return -1;
|
||||
|
||||
int old_state = !!(ifr.ifr_flags & IFF_ALLMULTI);
|
||||
int old_state = !!(ifr.ifr_flags& IFF_ALLMULTI);
|
||||
|
||||
if (state == old_state)
|
||||
return old_state;
|
||||
@ -571,7 +575,7 @@ int iface::allmulti(int state)
|
||||
else
|
||||
ifr.ifr_flags &= ~IFF_ALLMULTI;
|
||||
|
||||
if (ioctl(_pfd, SIOCSIFFLAGS, &ifr) < 0)
|
||||
if (ioctl(_pfd, SIOCSIFFLAGS,& ifr) < 0)
|
||||
return -1;
|
||||
|
||||
return old_state;
|
||||
|
||||
@ -30,8 +30,7 @@ NDPPD_NS_BEGIN
|
||||
class session;
|
||||
class proxy;
|
||||
|
||||
class iface
|
||||
{
|
||||
class iface {
|
||||
private:
|
||||
// Weak pointer so this object can reference itself.
|
||||
weak_ptr<iface> _ptr;
|
||||
@ -85,9 +84,9 @@ public:
|
||||
|
||||
static int poll_all();
|
||||
|
||||
static ssize_t read(int fd, struct sockaddr *saddr, uint8_t *msg, size_t size);
|
||||
static ssize_t read(int fd, struct sockaddr* saddr, uint8_t* msg, size_t size);
|
||||
|
||||
static ssize_t write(int fd, const address& daddr, const uint8_t *msg, size_t size);
|
||||
static ssize_t write(int fd, const address& daddr, const uint8_t* msg, size_t size);
|
||||
|
||||
// Writes a NB_NEIGHBOR_SOLICIT message to the _ifd socket.
|
||||
ssize_t write_solicit(const address& taddr);
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
|
||||
NDPPD_NS_BEGIN
|
||||
|
||||
/*const char *log::_level_str[] =
|
||||
/*const char* log::_level_str[] =
|
||||
{
|
||||
"fatal",
|
||||
"alert",
|
||||
@ -59,7 +59,7 @@ logger::logger(int pri) :
|
||||
{
|
||||
}
|
||||
|
||||
logger::logger(const logger &l) :
|
||||
logger::logger(const logger& l) :
|
||||
_pri(l._pri) //, _ss(l._ss.str())
|
||||
{
|
||||
_ss << l._ss.rdbuf();
|
||||
@ -100,34 +100,34 @@ logger logger::debug()
|
||||
return logger(LOG_DEBUG);
|
||||
}
|
||||
|
||||
logger &logger::operator<<(const std::string &str)
|
||||
logger& logger::operator<<(const std::string& str)
|
||||
{
|
||||
_ss << str;
|
||||
return *this;
|
||||
return* this;
|
||||
}
|
||||
|
||||
logger &logger::operator<<(int n)
|
||||
logger& logger::operator<<(int n)
|
||||
{
|
||||
_ss << n;
|
||||
return *this;
|
||||
return* this;
|
||||
}
|
||||
|
||||
logger &logger::operator<<(logger &(*pf)(logger &))
|
||||
logger& logger::operator<<(logger& (*pf)(logger& ))
|
||||
{
|
||||
pf(*this);
|
||||
return *this;
|
||||
return* this;
|
||||
}
|
||||
|
||||
logger &logger::endl(logger &__l)
|
||||
logger& logger::endl(logger& __l)
|
||||
{
|
||||
__l.flush();
|
||||
return __l;
|
||||
}
|
||||
|
||||
logger &logger::force_log(bool b)
|
||||
logger& logger::force_log(bool b)
|
||||
{
|
||||
_force_log = b;
|
||||
return *this;
|
||||
return* this;
|
||||
}
|
||||
|
||||
void logger::flush()
|
||||
@ -175,9 +175,9 @@ void logger::max_pri(int pri)
|
||||
_max_pri = pri;
|
||||
}
|
||||
|
||||
bool logger::verbosity(const std::string &name)
|
||||
bool logger::verbosity(const std::string& name)
|
||||
{
|
||||
const char *c_name = name.c_str();
|
||||
const char* c_name = name.c_str();
|
||||
|
||||
if (!*c_name) {
|
||||
return false;
|
||||
|
||||
25
src/logger.h
25
src/logger.h
@ -30,26 +30,17 @@
|
||||
# define LOG_DEBUG 7 /* debug-level messages */
|
||||
#endif
|
||||
|
||||
|
||||
/*#define DBG(...) logger(logger::DEBUG) << logger::F(__VA_ARGS__) << logger::endl;
|
||||
#define ERR(...) logger(logger::ERROR) << logger::F(__VA_ARGS__) << logger::endl;
|
||||
#define WRN(...) logger(logger::WARNING) << logger::F(__VA_ARGS__) << logger::endl;
|
||||
#define NFO(...) logger(logger::INFO) << logger::F(__VA_ARGS__) << logger::endl;*/
|
||||
|
||||
/* LOG_ERR; LOG_WARNING; LOG_CRIT; LOG_INFO; LOG_NOTICE */
|
||||
|
||||
NDPPD_NS_BEGIN
|
||||
|
||||
class logger
|
||||
{
|
||||
class logger {
|
||||
public:
|
||||
logger(int pri = LOG_INFO);
|
||||
|
||||
logger(const logger &l);
|
||||
logger(const logger& l);
|
||||
|
||||
~logger();
|
||||
|
||||
static std::string format(const std::string &fmt, ...);
|
||||
static std::string format(const std::string& fmt, ...);
|
||||
|
||||
static void syslog(bool enable);
|
||||
static bool syslog();
|
||||
@ -58,15 +49,15 @@ public:
|
||||
|
||||
void flush();
|
||||
|
||||
static bool verbosity(const std::string &name);
|
||||
static bool verbosity(const std::string& name);
|
||||
|
||||
logger& operator<<(const std::string &str);
|
||||
logger& operator<<(logger &(*pf)(logger &));
|
||||
logger& operator<<(const std::string& str);
|
||||
logger& operator<<(logger& (*pf)(logger& ));
|
||||
logger& operator<<(int n);
|
||||
|
||||
logger& force_log(bool b = true);
|
||||
|
||||
static logger& endl(logger &__l);
|
||||
static logger& endl(logger& __l);
|
||||
|
||||
// Shortcuts.
|
||||
|
||||
@ -83,7 +74,7 @@ private:
|
||||
bool _force_log;
|
||||
|
||||
struct pri_name {
|
||||
const char *name;
|
||||
const char* name;
|
||||
int pri;
|
||||
};
|
||||
|
||||
|
||||
57
src/ndppd.cc
57
src/ndppd.cc
@ -27,6 +27,7 @@
|
||||
#include <unistd.h>
|
||||
|
||||
#include "ndppd.h"
|
||||
#include "route.h"
|
||||
|
||||
using namespace ndppd;
|
||||
|
||||
@ -52,7 +53,7 @@ int daemonize()
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool configure(const std::string &path)
|
||||
bool configure(const std::string& path)
|
||||
{
|
||||
ptr<conf> cf;
|
||||
|
||||
@ -61,61 +62,65 @@ bool configure(const std::string &path)
|
||||
|
||||
std::vector<ptr<conf> >::const_iterator p_it;
|
||||
|
||||
std::vector<ptr<conf> > proxies(cf->find("proxy"));
|
||||
std::vector<ptr<conf> > proxies(cf->find_all("proxy"));
|
||||
|
||||
for (p_it = proxies.begin(); p_it != proxies.end(); p_it++) {
|
||||
ptr<conf> pr_cf = *p_it, x_cf;
|
||||
ptr<conf> pr_cf =* p_it, x_cf;
|
||||
|
||||
if (pr_cf->value() == "") {
|
||||
if (pr_cf->empty()) {
|
||||
logger::error() << "'proxy' section is missing interface name";
|
||||
return false;
|
||||
}
|
||||
|
||||
ptr<proxy> pr = proxy::open(pr_cf->value());
|
||||
ptr<proxy> pr = proxy::open(*pr_cf);
|
||||
|
||||
if (!pr) {
|
||||
logger::error() << "Configuration failed for proxy '" << pr_cf->value() << "'";
|
||||
logger::error() << "Configuration failed for proxy '" << (const std::string& )*pr_cf << "'";
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!(x_cf = (*pr_cf)["router"]))
|
||||
if (!(x_cf = pr_cf->find("router")))
|
||||
pr->router(true);
|
||||
else
|
||||
pr->router(x_cf->bool_value());
|
||||
pr->router(*x_cf);
|
||||
|
||||
if (!(x_cf = (*pr_cf)["ttl"]))
|
||||
if (!(x_cf = pr_cf->find("ttl")))
|
||||
pr->ttl(30000);
|
||||
else
|
||||
pr->ttl(x_cf->int_value());
|
||||
pr->ttl(*x_cf);
|
||||
|
||||
if (!(x_cf = (*pr_cf)["timeout"]))
|
||||
if (!(x_cf = pr_cf->find("timeout")))
|
||||
pr->timeout(500);
|
||||
else
|
||||
pr->timeout(x_cf->int_value());
|
||||
pr->timeout(*x_cf);
|
||||
|
||||
std::vector<ptr<conf> >::const_iterator r_it;
|
||||
|
||||
std::vector<ptr<conf> > rules(pr_cf->find("rule"));
|
||||
std::vector<ptr<conf> > rules(pr_cf->find_all("rule"));
|
||||
|
||||
for (r_it = rules.begin(); r_it != rules.end(); r_it++) {
|
||||
ptr<conf> ru_cf = *r_it;
|
||||
ptr<conf> ru_cf =* r_it;
|
||||
|
||||
if (ru_cf->value() == "") {
|
||||
if (ru_cf->empty()) {
|
||||
logger::error() << "'rule' is missing an IPv6 address/net";
|
||||
return false;
|
||||
}
|
||||
|
||||
address addr(ru_cf->value());
|
||||
address addr(*ru_cf);
|
||||
|
||||
if (!(x_cf = (*ru_cf)["iface"])) {
|
||||
if (x_cf = ru_cf->find("iface")) {
|
||||
if ((const std::string& )*x_cf == "") {
|
||||
logger::error() << "'iface' expected an interface name";
|
||||
} else {
|
||||
pr->add_rule(addr, iface::open_ifd(*x_cf));
|
||||
}
|
||||
} else if (ru_cf->find("auto")) {
|
||||
pr->add_rule(addr, true);
|
||||
} else {
|
||||
if (addr.prefix() <= 120) {
|
||||
logger::warning() << "Static rule prefix /" << addr.prefix() << " <= 120 - is this what you want?";
|
||||
pr->add_rule(addr);
|
||||
}
|
||||
} else if (x_cf->value() == "") {
|
||||
logger::error() << "'iface' expected an interface name or 'auto' as argument";
|
||||
} else {
|
||||
pr->add_rule(addr, iface::open_ifd(x_cf->value()));
|
||||
pr->add_rule(addr, false);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -123,7 +128,7 @@ bool configure(const std::string &path)
|
||||
return true;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[], char *env[])
|
||||
int main(int argc, char* argv[], char* env[])
|
||||
{
|
||||
std::string config_path("/etc/ndppd.conf");
|
||||
std::string pidfile;
|
||||
@ -141,7 +146,7 @@ int main(int argc, char *argv[], char *env[])
|
||||
{ 0, 0, 0, 0}
|
||||
};
|
||||
|
||||
c = getopt_long(argc, argv, "c:dp:v::", long_options, &opt);
|
||||
c = getopt_long(argc, argv, "c:dp:v::", long_options,& opt);
|
||||
|
||||
if (c == -1)
|
||||
break;
|
||||
@ -195,6 +200,8 @@ int main(int argc, char *argv[], char *env[])
|
||||
if (!configure(config_path))
|
||||
return -1;
|
||||
|
||||
route::load("/proc/net/ipv6_route");
|
||||
|
||||
// Time stuff.
|
||||
|
||||
struct timeval t1, t2;
|
||||
@ -206,7 +213,7 @@ int main(int argc, char *argv[], char *env[])
|
||||
gettimeofday(&t2, 0);
|
||||
|
||||
elapsed_time =
|
||||
((t2.tv_sec - t1.tv_sec) * 1000) +
|
||||
((t2.tv_sec - t1.tv_sec)* 1000) +
|
||||
((t2.tv_usec - t1.tv_usec) / 1000);
|
||||
|
||||
t1.tv_sec = t2.tv_sec;
|
||||
|
||||
44
src/proxy.cc
44
src/proxy.cc
@ -20,6 +20,7 @@
|
||||
#include "ndppd.h"
|
||||
|
||||
#include "proxy.h"
|
||||
#include "route.h"
|
||||
#include "iface.h"
|
||||
#include "rule.h"
|
||||
#include "session.h"
|
||||
@ -48,8 +49,9 @@ ptr<proxy> proxy::open(const std::string& ifname)
|
||||
{
|
||||
ptr<iface> ifa = iface::open_pfd(ifname);
|
||||
|
||||
if (!ifa)
|
||||
if (!ifa) {
|
||||
return ptr<proxy>();
|
||||
}
|
||||
|
||||
return create(ifa);
|
||||
}
|
||||
@ -57,8 +59,9 @@ ptr<proxy> proxy::open(const std::string& ifname)
|
||||
void proxy::handle_solicit(const address& saddr, const address& daddr,
|
||||
const address& taddr)
|
||||
{
|
||||
logger::debug() << "proxy::handle_solicit() saddr=" << saddr.to_string()
|
||||
<< ", taddr=" << taddr.to_string();
|
||||
logger::debug()
|
||||
<< "proxy::handle_solicit() saddr=" << saddr.to_string()
|
||||
<< ", taddr=" << taddr.to_string();
|
||||
|
||||
// Let's check this proxy's list of sessions to see if we can
|
||||
// find one with the same target address.
|
||||
@ -86,24 +89,31 @@ void proxy::handle_solicit(const address& saddr, const address& daddr,
|
||||
ptr<session> se;
|
||||
|
||||
for (std::list<ptr<rule> >::iterator it = _rules.begin();
|
||||
it != _rules.end(); it++) {
|
||||
ptr<rule> ru = *it;
|
||||
it != _rules.end(); it++) {
|
||||
ptr<rule> ru =* it;
|
||||
|
||||
logger::debug() << "checking " << ru->addr().to_string() << " against " << taddr;
|
||||
logger::debug() << "checking " << ru->addr() << " against " << taddr;
|
||||
|
||||
if (ru->addr() == taddr) {
|
||||
if (!se)
|
||||
if (!se) {
|
||||
se = session::create(_ptr, saddr, daddr, taddr);
|
||||
|
||||
if (!ru->ifa()) {
|
||||
// This rule doesn't have an interface, and thus we'll consider
|
||||
// it "static" and immediately send the response.
|
||||
|
||||
se->handle_advert();
|
||||
return;
|
||||
}
|
||||
|
||||
se->add_iface((*it)->ifa());
|
||||
if (ru->is_auto()) {
|
||||
ptr<iface> ifa = route::find_and_open(taddr);
|
||||
// TODO: Check if it's a good interface.
|
||||
if (ifa) {
|
||||
se->add_iface(ifa);
|
||||
continue;
|
||||
}
|
||||
} else if (!ru->ifa()) {
|
||||
// This rule doesn't have an interface, and thus we'll consider
|
||||
// it "static" and immediately send the response.
|
||||
se->handle_advert();
|
||||
return;
|
||||
} else {
|
||||
se->add_iface((*it)->ifa());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -120,9 +130,9 @@ ptr<rule> proxy::add_rule(const address& addr, const ptr<iface>& ifa)
|
||||
return ru;
|
||||
}
|
||||
|
||||
ptr<rule> proxy::add_rule(const address& addr)
|
||||
ptr<rule> proxy::add_rule(const address& addr, bool aut)
|
||||
{
|
||||
ptr<rule> ru(rule::create(_ptr, addr));
|
||||
ptr<rule> ru(rule::create(_ptr, addr, aut));
|
||||
_rules.push_back(ru);
|
||||
return ru;
|
||||
}
|
||||
|
||||
@ -28,8 +28,7 @@ NDPPD_NS_BEGIN
|
||||
class iface;
|
||||
class rule;
|
||||
|
||||
class proxy
|
||||
{
|
||||
class proxy {
|
||||
private:
|
||||
weak_ptr<proxy> _ptr;
|
||||
|
||||
@ -57,7 +56,7 @@ public:
|
||||
|
||||
ptr<rule> add_rule(const address& addr, const ptr<iface>& ifa);
|
||||
|
||||
ptr<rule> add_rule(const address& addr);
|
||||
ptr<rule> add_rule(const address& addr, bool aut = false);
|
||||
|
||||
const ptr<iface>& ifa() const;
|
||||
|
||||
|
||||
244
src/ptr.h
Normal file
244
src/ptr.h
Normal file
@ -0,0 +1,244 @@
|
||||
// ndppd - NDP Proxy Daemon
|
||||
// Copyright (C) 2011 Daniel Adolfsson <daniel@priv.nu>
|
||||
//
|
||||
// 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 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#pragma once
|
||||
|
||||
#include <exception>
|
||||
|
||||
#include "ndppd.h"
|
||||
|
||||
NDPPD_NS_BEGIN
|
||||
|
||||
class invalid_pointer : public std::exception {
|
||||
public:
|
||||
invalid_pointer() throw() {};
|
||||
};
|
||||
|
||||
template <class T>
|
||||
class weak_ptr;
|
||||
|
||||
// This template class simplifies the usage of pointers. It's basically
|
||||
// a reference-counting smart pointer that supports both weak and
|
||||
// strong references.
|
||||
|
||||
template <typename T>
|
||||
class ptr {
|
||||
template <typename U>
|
||||
friend class ptr;
|
||||
|
||||
struct ptr_ref {
|
||||
T* ptr;
|
||||
int wc, sc;
|
||||
};
|
||||
|
||||
protected:
|
||||
ptr_ref* _ref;
|
||||
|
||||
bool _weak;
|
||||
|
||||
void acquire(ptr_ref* ref)
|
||||
{
|
||||
if (_ref)
|
||||
release();
|
||||
|
||||
if (_ref = ref) {
|
||||
if (_weak)
|
||||
_ref->wc++;
|
||||
else
|
||||
_ref->sc++;
|
||||
}
|
||||
}
|
||||
|
||||
void acquire(void* ptr)
|
||||
{
|
||||
_ref = new ptr_ref();
|
||||
_ref->ptr = (T* )ptr;
|
||||
_ref->wc = !!_weak;
|
||||
_ref->sc = !_weak;
|
||||
}
|
||||
|
||||
void release()
|
||||
{
|
||||
if (!_ref)
|
||||
return;
|
||||
|
||||
if (_weak)
|
||||
_ref->wc--;
|
||||
else
|
||||
_ref->sc--;
|
||||
|
||||
if (!_ref->sc && _ref->ptr) {
|
||||
T* ptr = static_cast<T* >(_ref->ptr);
|
||||
_ref->ptr = 0;
|
||||
delete ptr;
|
||||
}
|
||||
|
||||
if (!_ref->sc && !_ref->wc)
|
||||
delete _ref;
|
||||
|
||||
_ref = 0;
|
||||
}
|
||||
|
||||
template <class U>
|
||||
void acquire(const ptr<U>& ptr)
|
||||
{
|
||||
T* t = static_cast<U* >(0);
|
||||
acquire(ptr._ref);
|
||||
}
|
||||
|
||||
public:
|
||||
ptr(bool weak = false) :
|
||||
_weak(weak), _ref(0)
|
||||
{
|
||||
}
|
||||
|
||||
ptr(T* p, bool weak = false) :
|
||||
_weak(weak), _ref(0)
|
||||
{
|
||||
acquire(p);
|
||||
}
|
||||
|
||||
ptr(const ptr<T>& p, bool weak = false) :
|
||||
_weak(weak), _ref(0)
|
||||
{
|
||||
acquire(p._ref);
|
||||
}
|
||||
|
||||
ptr(const weak_ptr<T>& p, bool weak = false) :
|
||||
_weak(weak), _ref(0)
|
||||
{
|
||||
acquire(p._ref);
|
||||
}
|
||||
|
||||
template <class U>
|
||||
ptr(const ptr<U>& p, bool weak = false) :
|
||||
_weak(weak), _ref(0)
|
||||
{
|
||||
T* x = (U*)0;
|
||||
acquire(p._ref);
|
||||
}
|
||||
|
||||
template <class U>
|
||||
ptr(const weak_ptr<U>& p, bool weak = false) :
|
||||
_weak(weak), _ref(0)
|
||||
{
|
||||
T* x = (U*)0;
|
||||
acquire(p._ref);
|
||||
}
|
||||
|
||||
~ptr()
|
||||
{
|
||||
release();
|
||||
}
|
||||
|
||||
void operator=(T* p)
|
||||
{
|
||||
acquire(p);
|
||||
}
|
||||
|
||||
ptr<T>& operator=(const ptr<T>& p)
|
||||
{
|
||||
acquire(p);
|
||||
return* this;
|
||||
}
|
||||
|
||||
bool operator==(const ptr<T>& other) const
|
||||
{
|
||||
return other._ref == _ref;
|
||||
}
|
||||
|
||||
bool operator!=(const ptr<T>& other) const
|
||||
{
|
||||
return other._ref != _ref;
|
||||
}
|
||||
|
||||
bool is_null() const
|
||||
{
|
||||
return !_ref || !_ref->ptr;
|
||||
}
|
||||
|
||||
T& operator*() const
|
||||
{
|
||||
return* get_pointer();
|
||||
}
|
||||
|
||||
T* operator->() const
|
||||
{
|
||||
return get_pointer();
|
||||
}
|
||||
|
||||
operator T*() const
|
||||
{
|
||||
return get_pointer();
|
||||
}
|
||||
|
||||
operator bool() const
|
||||
{
|
||||
return !is_null();
|
||||
}
|
||||
|
||||
void reset(T* p = 0)
|
||||
{
|
||||
acquire(p);
|
||||
}
|
||||
|
||||
T* get_pointer() const
|
||||
{
|
||||
if (!_ref || !_ref->ptr)
|
||||
throw new invalid_pointer;
|
||||
|
||||
return static_cast<T* >(_ref->ptr);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
class weak_ptr : public ptr<T> {
|
||||
public:
|
||||
weak_ptr() :
|
||||
ptr<T>(true)
|
||||
{
|
||||
}
|
||||
|
||||
weak_ptr(T* p) :
|
||||
ptr<T>(p, true)
|
||||
{
|
||||
}
|
||||
|
||||
weak_ptr(const ptr<T>& p) :
|
||||
ptr<T>(p, true)
|
||||
{
|
||||
}
|
||||
|
||||
weak_ptr(const weak_ptr<T>& p) :
|
||||
ptr<T>(p, true)
|
||||
{
|
||||
}
|
||||
|
||||
template <class U>
|
||||
weak_ptr(const ptr<U>& p) :
|
||||
ptr<T>(p, true)
|
||||
{
|
||||
}
|
||||
|
||||
template <class U>
|
||||
weak_ptr(const weak_ptr<U>& p) :
|
||||
ptr<T>(p, true)
|
||||
{
|
||||
}
|
||||
};
|
||||
|
||||
NDPPD_NS_END
|
||||
|
||||
|
||||
165
src/route.cc
Normal file
165
src/route.cc
Normal file
@ -0,0 +1,165 @@
|
||||
// ndppd - NDP Proxy Daemon
|
||||
// Copyright (C) 2011 Daniel Adolfsson <daniel@priv.nu>
|
||||
//
|
||||
// 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 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#include <list>
|
||||
#include <memory>
|
||||
#include <fstream>
|
||||
|
||||
#include "ndppd.h"
|
||||
#include "route.h"
|
||||
|
||||
NDPPD_NS_BEGIN
|
||||
|
||||
std::list<ptr<route> > route::_routes;
|
||||
|
||||
route::route(const address& addr, const std::string& ifname) :
|
||||
_addr(addr), _ifname(ifname)
|
||||
{
|
||||
}
|
||||
|
||||
size_t route::hexdec(const char* str, unsigned char* buf, size_t size)
|
||||
{
|
||||
for (size_t i = 0; ; i++) {
|
||||
if (i >= size)
|
||||
return i;
|
||||
|
||||
char c1 = tolower(str[i* 2]), c2 = tolower(str[i* 2 + 1]);
|
||||
|
||||
if (!isxdigit(c1) || !isxdigit(c2))
|
||||
return i;
|
||||
|
||||
if ((c1 >= '0') && (c1 <= '9'))
|
||||
buf[i] = (c1 - '0') << 4;
|
||||
else
|
||||
buf[i] = ((c1 - 'a') + 10) << 4;
|
||||
|
||||
if ((c2 >= '0') && (c2 <= '9'))
|
||||
buf[i] |= c2 - '0';
|
||||
else
|
||||
buf[i] |= (c2 - 'a') + 10;
|
||||
}
|
||||
}
|
||||
|
||||
std::string route::token(const char* str)
|
||||
{
|
||||
while (*str && isspace(*str)) {
|
||||
str++;
|
||||
}
|
||||
|
||||
if (!*str) {
|
||||
return "";
|
||||
}
|
||||
|
||||
std::stringstream ss;
|
||||
|
||||
while (*str && !isspace(*str)) {
|
||||
ss <<* str++;
|
||||
}
|
||||
|
||||
return ss.str();
|
||||
}
|
||||
|
||||
void route::load(const std::string& path)
|
||||
{
|
||||
_routes.clear();
|
||||
|
||||
try {
|
||||
std::ifstream ifs;
|
||||
ifs.exceptions(std::ifstream::badbit | std::ifstream::failbit);
|
||||
ifs.open(path.c_str(), std::ios::in);
|
||||
ifs.exceptions(std::ifstream::badbit);
|
||||
|
||||
while (!ifs.eof()) {
|
||||
char buf[1024];
|
||||
ifs.getline(buf, sizeof(buf));
|
||||
|
||||
if (ifs.gcount() < 149)
|
||||
continue;
|
||||
|
||||
address addr;
|
||||
|
||||
unsigned char pfx;
|
||||
|
||||
if (hexdec(buf, (unsigned char* )&addr.addr(), 16) != 16) {
|
||||
// TODO: Warn here?
|
||||
continue;
|
||||
}
|
||||
|
||||
if (hexdec(buf + 33,& pfx, 1) != 1) {
|
||||
// TODO: Warn here?
|
||||
continue;
|
||||
}
|
||||
|
||||
addr.prefix((int)pfx);
|
||||
|
||||
route::create(addr, token(buf + 141));
|
||||
}
|
||||
} catch (std::ifstream::failure e) {
|
||||
logger::warning() << "Failed to parse IPv6 routing data from '" << path << "'";
|
||||
logger::error() << e.what();
|
||||
}
|
||||
}
|
||||
|
||||
ptr<route> route::create(const address& addr, const std::string& ifname)
|
||||
{
|
||||
ptr<route> rt(new route(addr, ifname));
|
||||
logger::debug() << "route::create() addr=" << addr << ", ifname=" << ifname;
|
||||
_routes.push_back(rt);
|
||||
return rt;
|
||||
}
|
||||
|
||||
ptr<route> route::find(const address& addr)
|
||||
{
|
||||
for (std::list<ptr<route> >::iterator it = _routes.begin();
|
||||
it != _routes.end(); it++) {
|
||||
if ((*it)->addr() == addr)
|
||||
return *it;
|
||||
}
|
||||
|
||||
return ptr<route>();
|
||||
}
|
||||
|
||||
ptr<iface> route::find_and_open(const address& addr)
|
||||
{
|
||||
ptr<route> rt;
|
||||
|
||||
if (rt = find(addr)) {
|
||||
return rt->ifa();
|
||||
}
|
||||
|
||||
return ptr<iface>();
|
||||
}
|
||||
|
||||
const std::string& route::ifname() const
|
||||
{
|
||||
return _ifname;
|
||||
}
|
||||
|
||||
ptr<iface> route::ifa()
|
||||
{
|
||||
if (!_ifa) {
|
||||
return _ifa = iface::open_ifd(_ifname);
|
||||
}
|
||||
|
||||
return ptr<iface>();
|
||||
}
|
||||
|
||||
const address& route::addr() const
|
||||
{
|
||||
return _addr;
|
||||
}
|
||||
|
||||
NDPPD_NS_END
|
||||
|
||||
59
src/route.h
Normal file
59
src/route.h
Normal file
@ -0,0 +1,59 @@
|
||||
// ndppd - NDP Proxy Daemon
|
||||
// Copyright (C) 2011 Daniel Adolfsson <daniel@priv.nu>
|
||||
//
|
||||
// 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 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#pragma once
|
||||
|
||||
#include <string>
|
||||
#include <list>
|
||||
#include <memory>
|
||||
|
||||
#include "ndppd.h"
|
||||
|
||||
NDPPD_NS_BEGIN
|
||||
|
||||
class route {
|
||||
public:
|
||||
static ptr<route> create(const address& addr, const std::string& ifname);
|
||||
|
||||
static ptr<route> find(const address& addr);
|
||||
|
||||
static ptr<iface> find_and_open(const address& addr);
|
||||
|
||||
static void load(const std::string& path);
|
||||
|
||||
const std::string& ifname() const;
|
||||
|
||||
const address& addr() const;
|
||||
|
||||
ptr<iface> ifa();
|
||||
|
||||
private:
|
||||
address _addr;
|
||||
|
||||
std::string _ifname;
|
||||
|
||||
ptr<iface> _ifa;
|
||||
|
||||
static size_t hexdec(const char* str, unsigned char* buf, size_t size);
|
||||
|
||||
static std::string token(const char* str);
|
||||
|
||||
static std::list<ptr<route> > _routes;
|
||||
|
||||
route(const address& addr, const std::string& ifname);
|
||||
|
||||
};
|
||||
|
||||
NDPPD_NS_END
|
||||
12
src/rule.cc
12
src/rule.cc
@ -35,20 +35,24 @@ ptr<rule> rule::create(const ptr<proxy>& pr, const address& addr, const ptr<ifac
|
||||
ru->_pr = pr;
|
||||
ru->_ifa = ifa;
|
||||
ru->_addr = addr;
|
||||
ru->_aut = false;
|
||||
|
||||
logger::debug() << "rule::create() if=" << pr->ifa()->name() << ", addr=" << addr;
|
||||
|
||||
return ru;
|
||||
}
|
||||
|
||||
ptr<rule> rule::create(const ptr<proxy>& pr, const address& addr)
|
||||
ptr<rule> rule::create(const ptr<proxy>& pr, const address& addr, bool aut)
|
||||
{
|
||||
ptr<rule> ru(new rule());
|
||||
ru->_ptr = ru;
|
||||
ru->_pr = pr;
|
||||
ru->_addr = addr;
|
||||
ru->_aut = aut;
|
||||
|
||||
logger::debug() << "rule::create() if=" << pr->ifa()->name().c_str() << ", addr=" << addr;
|
||||
logger::debug()
|
||||
<< "rule::create() if=" << pr->ifa()->name().c_str() << ", addr=" << addr
|
||||
<< ", auto=" << (aut ? "yes" : "no");
|
||||
|
||||
return ru;
|
||||
}
|
||||
@ -63,9 +67,9 @@ ptr<iface> rule::ifa() const
|
||||
return _ifa;
|
||||
}
|
||||
|
||||
bool rule::is_static() const
|
||||
bool rule::is_auto() const
|
||||
{
|
||||
return !!_ifa;
|
||||
return _aut;
|
||||
}
|
||||
|
||||
bool rule::check(const address& addr) const
|
||||
|
||||
32
src/rule.h
32
src/rule.h
@ -28,8 +28,20 @@ NDPPD_NS_BEGIN
|
||||
class iface;
|
||||
class proxy;
|
||||
|
||||
class rule
|
||||
{
|
||||
class rule {
|
||||
public:
|
||||
static ptr<rule> create(const ptr<proxy>& pr, const address& addr, const ptr<iface>& ifa);
|
||||
|
||||
static ptr<rule> create(const ptr<proxy>& pr, const address& addr, bool stc = true);
|
||||
|
||||
const address& addr() const;
|
||||
|
||||
ptr<iface> ifa() const;
|
||||
|
||||
bool is_auto() const;
|
||||
|
||||
bool check(const address& addr) const;
|
||||
|
||||
private:
|
||||
weak_ptr<rule> _ptr;
|
||||
|
||||
@ -39,21 +51,9 @@ private:
|
||||
|
||||
address _addr;
|
||||
|
||||
bool _aut;
|
||||
|
||||
rule();
|
||||
|
||||
public:
|
||||
static ptr<rule> create(const ptr<proxy>& pr, const address& addr, const ptr<iface>& ifa);
|
||||
|
||||
static ptr<rule> create(const ptr<proxy>& pr, const address& addr);
|
||||
|
||||
const address& addr() const;
|
||||
|
||||
ptr<iface> ifa() const;
|
||||
|
||||
bool is_static() const;
|
||||
|
||||
bool check(const address& addr) const;
|
||||
|
||||
};
|
||||
|
||||
NDPPD_NS_END
|
||||
|
||||
@ -79,8 +79,8 @@ ptr<session> session::create(const ptr<proxy>& pr, const address& saddr,
|
||||
_sessions.push_back(se);
|
||||
|
||||
logger::debug()
|
||||
<< "session::create() pr=" << logger::format("%x", (proxy *)pr) << ", saddr=" << saddr
|
||||
<< ", daddr=" << daddr << ", taddr=" << taddr << " =" << logger::format("%x", (session *)se);
|
||||
<< "session::create() pr=" << logger::format("%x", (proxy* )pr) << ", saddr=" << saddr
|
||||
<< ", daddr=" << daddr << ", taddr=" << taddr << " =" << logger::format("%x", (session* )se);
|
||||
|
||||
return se;
|
||||
}
|
||||
|
||||
@ -24,8 +24,7 @@ NDPPD_NS_BEGIN
|
||||
class proxy;
|
||||
class iface;
|
||||
|
||||
class session
|
||||
{
|
||||
class session {
|
||||
private:
|
||||
weak_ptr<session> _ptr;
|
||||
|
||||
@ -80,8 +79,6 @@ public:
|
||||
void send_solicit();
|
||||
|
||||
void refesh();
|
||||
|
||||
|
||||
};
|
||||
|
||||
NDPPD_NS_END
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user