+#include <arpa/inet.h>
#include <assert.h>
#include <ctype.h>
+#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/socket.h>
#include <map>
#include <string>
#include <utility>
#include <vector>
#include "config.h"
+#include "log.h"
#include "parse.h"
using namespace std;
{
FILE *fp = fopen(filename.c_str(), "r");
if (fp == NULL) {
- perror(filename.c_str());
+ log_perror(filename.c_str());
return false;
}
}
if (config[i].parameters.size() > 0 ||
config[i].arguments.size() != 1) {
- fprintf(stderr, "ERROR: '%s' takes one argument and no parameters\n", keyword.c_str());
+ log(ERROR, "'%s' takes one argument and no parameters", keyword.c_str());
return false;
}
*value = config[i].arguments[0];
}
if (config[i].parameters.size() > 0 ||
config[i].arguments.size() != 1) {
- fprintf(stderr, "ERROR: '%s' takes one argument and no parameters\n", keyword.c_str());
+ log(ERROR, "'%s' takes one argument and no parameters", keyword.c_str());
return false;
}
*value = atoi(config[i].arguments[0].c_str()); // TODO: verify int validity.
bool parse_port(const ConfigLine &line, Config *config)
{
if (line.arguments.size() != 1) {
- fprintf(stderr, "ERROR: 'port' takes exactly one argument\n");
+ log(ERROR, "'port' takes exactly one argument");
return false;
}
AcceptorConfig acceptor;
acceptor.port = atoi(line.arguments[0].c_str());
if (acceptor.port < 1 || acceptor.port >= 65536) {
- fprintf(stderr, "ERROR: port %d is out of range (must be [1,65536>).\n", acceptor.port);
+ log(ERROR, "port %d is out of range (must be [1,65536>).", acceptor.port);
return false;
}
pool_index = i;
} else if ((from >= pool.from && from < pool.to) ||
(to >= pool.from && to < pool.to)) {
- fprintf(stderr, "WARNING: Mark pool %d-%d partially overlaps with %d-%d, you may get duplicate marks.\n",
- from, to, pool.from, pool.to);
- fprintf(stderr, " Mark pools must either be completely disjunct, or completely overlapping.\n");
+ log(WARNING, "Mark pool %d-%d partially overlaps with %d-%d, you may get duplicate marks."
+ "Mark pools must either be completely disjunct, or completely overlapping.",
+ from, to, pool.from, pool.to);
}
}
{
size_t split = mark_str.find_first_of('-');
if (split == string::npos) {
- fprintf(stderr, "ERROR: Invalid mark specification '%s' (expected 'X-Y').\n",
+ log(ERROR, "Invalid mark specification '%s' (expected 'X-Y').",
mark_str.c_str());
return false;
}
*to = atoi(to_str.c_str());
if (*from <= 0 || *from >= 65536 || *to <= 0 || *to >= 65536) {
- fprintf(stderr, "ERROR: Mark pool range %d-%d is outside legal range [1,65536>.\n",
+ log(ERROR, "Mark pool range %d-%d is outside legal range [1,65536>.",
*from, *to);
return false;
}
bool parse_stream(const ConfigLine &line, Config *config)
{
if (line.arguments.size() != 1) {
- fprintf(stderr, "ERROR: 'stream' takes exactly one argument\n");
+ log(ERROR, "'stream' takes exactly one argument");
return false;
}
StreamConfig stream;
- stream.stream_id = line.arguments[0];
+ stream.url = line.arguments[0];
map<string, string>::const_iterator src_it = line.parameters.find("src");
if (src_it == line.parameters.end()) {
- fprintf(stderr, "WARNING: stream '%s' has no src= attribute, clients will not get any data.\n",
- stream.stream_id.c_str());
+ log(WARNING, "stream '%s' has no src= attribute, clients will not get any data.",
+ stream.url.c_str());
} else {
stream.src = src_it->second;
// TODO: Verify that the URL is parseable?
stream.backlog_size = atoi(backlog_it->second.c_str());
}
+ // Parse encoding.
+ map<string, string>::const_iterator encoding_parm_it = line.parameters.find("encoding");
+ if (encoding_parm_it == line.parameters.end() ||
+ encoding_parm_it->second == "raw") {
+ stream.encoding = StreamConfig::STREAM_ENCODING_RAW;
+ } else if (encoding_parm_it->second == "metacube") {
+ stream.encoding = StreamConfig::STREAM_ENCODING_METACUBE;
+ } else {
+ log(ERROR, "Parameter 'encoding' must be either 'raw' (default) or 'metacube'");
+ return false;
+ }
+
// Parse marks, if so desired.
map<string, string>::const_iterator mark_parm_it = line.parameters.find("mark");
if (mark_parm_it == line.parameters.end()) {
return true;
}
+bool parse_udpstream(const ConfigLine &line, Config *config)
+{
+ if (line.arguments.size() != 1) {
+ log(ERROR, "'udpstream' takes exactly one argument");
+ return false;
+ }
+
+ UDPStreamConfig udpstream;
+
+ string hostport = line.arguments[0];
+
+ // See if the argument if on the type [ipv6addr]:port.
+ if (!hostport.empty() && hostport[0] == '[') {
+ size_t split = hostport.find("]:");
+ if (split == string::npos) {
+ log(ERROR, "udpstream destination '%s' is malformed; must be either [ipv6addr]:port or ipv4addr:port");
+ return false;
+ }
+
+ string host(hostport.begin() + 1, hostport.begin() + split);
+ string port = hostport.substr(split + 2);
+
+ udpstream.dst.sin6_family = AF_INET6;
+ if (inet_pton(AF_INET6, host.c_str(), &udpstream.dst.sin6_addr) != 1) {
+ log(ERROR, "udpstream destination host '%s' is not a valid IPv6 address");
+ return false;
+ }
+
+ udpstream.dst.sin6_port = htons(atoi(port.c_str())); // TODO: Verify validity.
+ } else {
+ // OK, then it must be ipv4addr:port.
+ size_t split = hostport.find(":");
+ if (split == string::npos) {
+ log(ERROR, "udpstream destination '%s' is malformed; must be either [ipv6addr]:port or ipv4addr:port");
+ return false;
+ }
+
+ string host(hostport.begin(), hostport.begin() + split);
+ string port = hostport.substr(split + 1);
+
+ // Parse to an IPv4 address, then construct a mapped-v4 address from that.
+ in_addr addr4;
+
+ if (inet_pton(AF_INET, host.c_str(), &addr4) != 1) {
+ log(ERROR, "udpstream destination host '%s' is not a valid IPv4 address");
+ return false;
+ }
+
+ udpstream.dst.sin6_family = AF_INET6;
+ udpstream.dst.sin6_addr.s6_addr32[0] = 0;
+ udpstream.dst.sin6_addr.s6_addr32[1] = 0;
+ udpstream.dst.sin6_addr.s6_addr32[2] = htonl(0xffff);
+ udpstream.dst.sin6_addr.s6_addr32[3] = addr4.s_addr;
+ udpstream.dst.sin6_port = htons(atoi(port.c_str())); // TODO: Verify validity.
+ }
+
+ map<string, string>::const_iterator src_it = line.parameters.find("src");
+ if (src_it == line.parameters.end()) {
+ // This is pretty meaningless, but OK, consistency is good.
+ log(WARNING, "udpstream to %s has no src= attribute, clients will not get any data.",
+ hostport.c_str());
+ } else {
+ udpstream.src = src_it->second;
+ // TODO: Verify that the URL is parseable?
+ }
+
+ // Parse marks, if so desired.
+ map<string, string>::const_iterator mark_parm_it = line.parameters.find("mark");
+ if (mark_parm_it == line.parameters.end()) {
+ udpstream.mark_pool = -1;
+ } else {
+ int from, to;
+ if (!parse_mark_pool(mark_parm_it->second, &from, &to)) {
+ return false;
+ }
+ udpstream.mark_pool = allocate_mark_pool(from, to, config);
+ }
+
+ config->udpstreams.push_back(udpstream);
+ return true;
+}
+bool parse_error_log(const ConfigLine &line, Config *config)
+{
+ if (line.arguments.size() != 0) {
+ log(ERROR, "'error_log' takes no arguments (only parameters type= and filename=)");
+ return false;
+ }
+
+ LogConfig log_config;
+ map<string, string>::const_iterator type_it = line.parameters.find("type");
+ if (type_it == line.parameters.end()) {
+ log(ERROR, "'error_log' has no type= parameter");
+ return false;
+ }
+
+ string type = type_it->second;
+ if (type == "file") {
+ log_config.type = LogConfig::LOG_TYPE_FILE;
+ } else if (type == "syslog") {
+ log_config.type = LogConfig::LOG_TYPE_SYSLOG;
+ } else if (type == "console") {
+ log_config.type = LogConfig::LOG_TYPE_CONSOLE;
+ } else {
+ log(ERROR, "Unknown log type '%s'", type.c_str());
+ return false;
+ }
+
+ if (log_config.type == LogConfig::LOG_TYPE_FILE) {
+ map<string, string>::const_iterator filename_it = line.parameters.find("filename");
+ if (filename_it == line.parameters.end()) {
+ log(ERROR, "error_log type 'file' with no filename= parameter");
+ return false;
+ }
+ log_config.filename = filename_it->second;
+ }
+
+ config->log_destinations.push_back(log_config);
+ return true;
+}
+
bool parse_config(const string &filename, Config *config)
{
vector<ConfigLine> lines;
return false;
}
+ config->daemonize = false;
+
if (!fetch_config_int(lines, "num_servers", &config->num_servers)) {
- fprintf(stderr, "ERROR: Missing 'num_servers' statement in config file.\n");
+ log(ERROR, "Missing 'num_servers' statement in config file.");
return false;
}
if (config->num_servers < 1 || config->num_servers >= 20000) { // Insanely high max limit.
- fprintf(stderr, "ERROR: 'num_servers' is %d, needs to be in [1, 20000>.\n", config->num_servers);
+ log(ERROR, "'num_servers' is %d, needs to be in [1, 20000>.", config->num_servers);
return false;
}
bool has_stats_file = fetch_config_string(lines, "stats_file", &config->stats_file);
bool has_stats_interval = fetch_config_int(lines, "stats_interval", &config->stats_interval);
if (has_stats_interval && !has_stats_file) {
- fprintf(stderr, "WARNING: 'stats_interval' given, but no 'stats_file'. No statistics will be written.\n");
+ log(WARNING, "'stats_interval' given, but no 'stats_file'. No client statistics will be written.");
+ }
+
+ config->input_stats_interval = 60;
+ bool has_input_stats_file = fetch_config_string(lines, "input_stats_file", &config->input_stats_file);
+ bool has_input_stats_interval = fetch_config_int(lines, "input_stats_interval", &config->input_stats_interval);
+ if (has_input_stats_interval && !has_input_stats_file) {
+ log(WARNING, "'input_stats_interval' given, but no 'input_stats_file'. No input statistics will be written.");
}
+
+ fetch_config_string(lines, "access_log", &config->access_log_file);
for (size_t i = 0; i < lines.size(); ++i) {
const ConfigLine &line = lines[i];
if (line.keyword == "num_servers" ||
line.keyword == "stats_file" ||
- line.keyword == "stats_interval") {
+ line.keyword == "stats_interval" ||
+ line.keyword == "input_stats_file" ||
+ line.keyword == "input_stats_interval" ||
+ line.keyword == "access_log") {
// Already taken care of, above.
} else if (line.keyword == "port") {
if (!parse_port(line, config)) {
if (!parse_stream(line, config)) {
return false;
}
+ } else if (line.keyword == "udpstream") {
+ if (!parse_udpstream(line, config)) {
+ return false;
+ }
+ } else if (line.keyword == "error_log") {
+ if (!parse_error_log(line, config)) {
+ return false;
+ }
+ } else if (line.keyword == "daemonize") {
+ config->daemonize = true;
} else {
- fprintf(stderr, "ERROR: Unknown configuration keyword '%s'.\n",
+ log(ERROR, "Unknown configuration keyword '%s'.",
line.keyword.c_str());
return false;
}