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00035 #include "ros/transport/transport.h"
00036 #include "ros/console.h"
00037 #include <netinet/in.h>
00038 #include <sys/socket.h>
00039 #include <netdb.h>
00040
00041 #if !defined(__ANDROID__)
00042 #include <ifaddrs.h>
00043 #endif
00044
00045 #ifndef NI_MAXHOST
00046 #define NI_MAXHOST 1025
00047 #endif
00048
00049 namespace ros
00050 {
00051
00052 Transport::Transport()
00053 : only_localhost_allowed_(false)
00054 {
00055 char *ros_ip_env = NULL, *ros_hostname_env = NULL;
00056 #ifdef _MSC_VER
00057 _dupenv_s(&ros_ip_env, NULL, "ROS_IP");
00058 _dupenv_s(&ros_hostname_env, NULL, "ROS_HOSTNAME");
00059 #else
00060 ros_ip_env = getenv("ROS_IP");
00061 ros_hostname_env = getenv("ROS_HOSTNAME");
00062 #endif
00063 if (ros_hostname_env && !strcmp(ros_hostname_env, "localhost"))
00064 only_localhost_allowed_ = true;
00065 else if (ros_ip_env && !strncmp(ros_ip_env, "127.", 4))
00066 only_localhost_allowed_ = true;
00067 else if (ros_ip_env && !strcmp(ros_ip_env, "::1"))
00068 only_localhost_allowed_ = true;
00069
00070 char our_hostname[256] = {0};
00071 gethostname(our_hostname, sizeof(our_hostname)-1);
00072 allowed_hosts_.push_back(std::string(our_hostname));
00073 allowed_hosts_.push_back("localhost");
00074 #if !defined(__ANDROID__)
00075
00076
00077
00078 ifaddrs *ifaddr;
00079 if (-1 == getifaddrs(&ifaddr))
00080 {
00081 ROS_ERROR("getifaddr() failed");
00082 return;
00083 }
00084 for (ifaddrs *ifa = ifaddr; ifa; ifa = ifa->ifa_next)
00085 {
00086 if(NULL == ifa->ifa_addr)
00087 continue;
00088 int family = ifa->ifa_addr->sa_family;
00089 if (family != AF_INET && family != AF_INET6)
00090 continue;
00091 char addr[NI_MAXHOST] = {0};
00092 if (getnameinfo(ifa->ifa_addr,
00093 (family == AF_INET) ? sizeof(sockaddr_in)
00094 : sizeof(sockaddr_in6),
00095 addr, NI_MAXHOST,
00096 NULL, 0, NI_NUMERICHOST))
00097 {
00098 ROS_ERROR("getnameinfo() failed");
00099 continue;
00100 }
00101 allowed_hosts_.push_back(std::string(addr));
00102 }
00103 freeifaddrs(ifaddr);
00104 #endif
00105 }
00106
00107 bool Transport::isHostAllowed(const std::string &host) const
00108 {
00109 if (!only_localhost_allowed_)
00110 return true;
00111
00112 if (host.length() >= 4 && host.substr(0, 4) == std::string("127."))
00113 return true;
00114
00115 for (std::vector<std::string>::const_iterator it = allowed_hosts_.begin();
00116 it != allowed_hosts_.end(); ++it)
00117 {
00118 if (host == *it)
00119 return true;
00120 }
00121 ROS_WARN("ROS_HOSTNAME / ROS_IP is set to only allow local connections, so "
00122 "a requested connection to '%s' is being rejected.", host.c_str());
00123 return false;
00124 }
00125
00126 }
00127
roscpp
Author(s): Morgan Quigley, Josh Faust, Brian Gerkey, Troy Straszheim
autogenerated on Thu Jun 6 2019 21:10:05