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Code Issues Releases Wiki Activity

Added Utils::interface_info.

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This commit is contained in:
Matias Fontanini
2012-03-23 11:25:14 -03:00
parent 4235feb43e
commit e642dfa418
2 changed files with 62 additions and 0 deletions
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35
src/utils.cpp
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@@ -49,6 +49,7 @@ struct InterfaceCollector {
}
};
/** \cond */
struct IPv4Collector {
uint32_t ip;
bool found;
@@ -64,6 +65,7 @@ struct IPv4Collector {
}
};
/** \cond */
struct HWAddressCollector {
uint8_t *result;
bool found;
@@ -79,6 +81,30 @@ struct HWAddressCollector {
}
};
/** \cond */
struct InterfaceInfoCollector {
Tins::Utils::InterfaceInfo *info;
const char *iface;
bool found;
InterfaceInfoCollector(Tins::Utils::InterfaceInfo *res, const char *interface) :
info(res), iface(interface), found(false) { }
void operator() (struct ifaddrs *addr) {
if(addr->ifa_addr->sa_family == AF_PACKET && !strcmp(addr->ifa_name, iface))
memcpy(info->hw_addr, ((struct sockaddr_ll*)addr->ifa_addr)->sll_addr, sizeof(info->hw_addr));
else if(addr->ifa_addr->sa_family == AF_INET && !strcmp(addr->ifa_name, iface)) {
info->ip_addr = ((struct sockaddr_in *)addr->ifa_addr)->sin_addr.s_addr;
info->netmask = ((struct sockaddr_in *)addr->ifa_netmask)->sin_addr.s_addr;
if((addr->ifa_flags & (IFF_BROADCAST | IFF_POINTOPOINT)))
info->bcast_addr = ((struct sockaddr_in *)addr->ifa_ifu.ifu_broadaddr)->sin_addr.s_addr;
else
info->bcast_addr = 0;
found = true;
}
}
};
bool from_hex(const string &str, uint32_t &result) {
unsigned i(0);
result = 0;
@@ -284,6 +310,15 @@ bool Tins::Utils::interface_hwaddr(const string &iface, uint8_t *buffer) {
return collector.found;
}
bool Tins::Utils::interface_info(const string &iface, InterfaceInfo &info) {
InterfaceInfoCollector collector(&info, iface.c_str());
generic_iface_loop(collector);
info.ip_addr = net_to_host_l(info.ip_addr);
info.netmask = net_to_host_l(info.netmask);
info.bcast_addr = net_to_host_l(info.bcast_addr);
return collector.found;
}
bool Tins::Utils::interface_id(const string &iface, uint32_t &id) {
id = if_nametoindex(iface.c_str());
return (((int32_t)id) != -1);