X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=src%2Frrd_daemon.c;h=1a20974d2e46c848da9d12580110b7c6dac00627;hp=22093205ba099b49bb1d98172c2fb84baffc2355;hb=154355b6ff56aefb6a1062134aadfa2aaab3a38c;hpb=896c97caca5fdc260fe5defd7952ad2741419432 diff --git a/src/rrd_daemon.c b/src/rrd_daemon.c index 2209320..1a20974 100644 --- a/src/rrd_daemon.c +++ b/src/rrd_daemon.c @@ -71,7 +71,7 @@ #endif #endif -#include "rrd.h" +#include "rrd_tool.h" #include "rrd_client.h" #include "unused.h" @@ -109,6 +109,10 @@ #include #include +#ifdef HAVE_LIBWRAP +#include +#endif /* HAVE_LIBWRAP */ + #include /* }}} */ @@ -275,6 +279,8 @@ static uint64_t stats_journal_bytes = 0; static uint64_t stats_journal_rotate = 0; static pthread_mutex_t stats_lock = PTHREAD_MUTEX_INITIALIZER; +static int opt_no_overwrite = 0; /* default for the daemon */ + /* Journaled updates */ #define JOURNAL_REPLAY(s) ((s) == NULL) #define JOURNAL_BASE "rrd.journal" @@ -1695,6 +1701,192 @@ static int handle_request_wrote (HANDLER_PROTO) /* {{{ */ return (0); } /* }}} int handle_request_wrote */ +static int handle_request_info (HANDLER_PROTO) /* {{{ */ +{ + char *file, file_tmp[PATH_MAX]; + int status; + rrd_info_t *info; + + /* obtain filename */ + status = buffer_get_field(&buffer, &buffer_size, &file); + if (status != 0) + return syntax_error(sock,cmd); + /* get full pathname */ + get_abs_path(&file, file_tmp); + if (!check_file_access(file, sock)) { + return send_response(sock, RESP_ERR, "Cannot read: %s\n", file); + } + /* get data */ + rrd_clear_error (); + info = rrd_info_r(file); + if(!info) { + return send_response(sock, RESP_ERR, "RRD Error: %s\n", rrd_get_error()); + } + for (rrd_info_t *data = info; data != NULL; data = data->next) { + switch (data->type) { + case RD_I_VAL: + if (isnan(data->value.u_val)) + add_response_info(sock,"%s %d NaN\n",data->key, data->type); + else + add_response_info(sock,"%s %d %0.10e\n", data->key, data->type, data->value.u_val); + break; + case RD_I_CNT: + add_response_info(sock,"%s %d %lu\n", data->key, data->type, data->value.u_cnt); + break; + case RD_I_INT: + add_response_info(sock,"%s %d %d\n", data->key, data->type, data->value.u_int); + break; + case RD_I_STR: + add_response_info(sock,"%s %d %s\n", data->key, data->type, data->value.u_str); + break; + case RD_I_BLO: + add_response_info(sock,"%s %d %lu\n", data->key, data->type, data->value.u_blo.size); + break; + } + } + + rrd_info_free(info); + + return send_response(sock, RESP_OK, "Info for %s follows\n",file); +} /* }}} static int handle_request_info */ + +static int handle_request_first (HANDLER_PROTO) /* {{{ */ +{ + char *i, *file, file_tmp[PATH_MAX]; + int status; + int idx; + time_t t; + + /* obtain filename */ + status = buffer_get_field(&buffer, &buffer_size, &file); + if (status != 0) + return syntax_error(sock,cmd); + /* get full pathname */ + get_abs_path(&file, file_tmp); + if (!check_file_access(file, sock)) { + return send_response(sock, RESP_ERR, "Cannot read: %s\n", file); + } + + status = buffer_get_field(&buffer, &buffer_size, &i); + if (status != 0) + return syntax_error(sock,cmd); + idx = atoi(i); + if(idx<0) { + return send_response(sock, RESP_ERR, "Invalid index specified (%d)\n", idx); + } + + /* get data */ + rrd_clear_error (); + t = rrd_first_r(file,idx); + if(t<1) { + return send_response(sock, RESP_ERR, "RRD Error: %s\n", rrd_get_error()); + } + return send_response(sock, RESP_OK, "%lu\n",(unsigned)t); +} /* }}} static int handle_request_first */ + + +static int handle_request_last (HANDLER_PROTO) /* {{{ */ +{ + char *file, file_tmp[PATH_MAX]; + int status; + time_t t, from_file, step; + rrd_file_t * rrd_file; + cache_item_t * ci; + rrd_t rrd; + + /* obtain filename */ + status = buffer_get_field(&buffer, &buffer_size, &file); + if (status != 0) + return syntax_error(sock,cmd); + /* get full pathname */ + get_abs_path(&file, file_tmp); + if (!check_file_access(file, sock)) { + return send_response(sock, RESP_ERR, "Cannot read: %s\n", file); + } + rrd_clear_error(); + rrd_init(&rrd); + rrd_file = rrd_open(file,&rrd,RRD_READONLY); + if(!rrd_file) { + return send_response(sock, RESP_ERR, "RRD Error: %s\n", rrd_get_error()); + } + from_file = rrd.live_head->last_up; + step = rrd.stat_head->pdp_step; + rrd_close(rrd_file); + pthread_mutex_lock(&cache_lock); + ci = g_tree_lookup(cache_tree, file); + if (ci) + t = ci->last_update_stamp; + else + t = from_file; + pthread_mutex_unlock(&cache_lock); + t -= t % step; + rrd_free(&rrd); + if(t<1) { + return send_response(sock, RESP_ERR, "Error: rrdcached: Invalid timestamp returned\n"); + } + return send_response(sock, RESP_OK, "%lu\n",(unsigned)t); +} /* }}} static int handle_request_last */ + +static int handle_request_create (HANDLER_PROTO) /* {{{ */ +{ + char *file, file_tmp[PATH_MAX]; + char *tok; + int ac = 0; + char *av[128]; + int status; + unsigned long step = 300; + time_t last_up = time(NULL)-10; + int no_overwrite = opt_no_overwrite; + + + /* obtain filename */ + status = buffer_get_field(&buffer, &buffer_size, &file); + if (status != 0) + return syntax_error(sock,cmd); + /* get full pathname */ + get_abs_path(&file, file_tmp); + if (!check_file_access(file, sock)) { + return send_response(sock, RESP_ERR, "Cannot read: %s\n", file); + } + RRDD_LOG(LOG_INFO, "rrdcreate request for %s",file); + + while ((status = buffer_get_field(&buffer, &buffer_size, &tok)) == 0 && tok) { + if( ! strncmp(tok,"-b",2) ) { + status = buffer_get_field(&buffer, &buffer_size, &tok ); + if (status != 0) return syntax_error(sock,cmd); + last_up = (time_t) atol(tok); + continue; + } + if( ! strncmp(tok,"-s",2) ) { + status = buffer_get_field(&buffer, &buffer_size, &tok ); + if (status != 0) return syntax_error(sock,cmd); + step = atol(tok); + continue; + } + if( ! strncmp(tok,"-O",2) ) { + no_overwrite = 1; + continue; + } + if( ! strncmp(tok,"DS:",3) ) { av[ac++]=tok; continue; } + if( ! strncmp(tok,"RRA:",4) ) { av[ac++]=tok; continue; } + return syntax_error(sock,cmd); + } + if(step<1) { + return send_response(sock, RESP_ERR, "The step size cannot be less than 1 second.\n"); + } + if (last_up < 3600 * 24 * 365 * 10) { + return send_response(sock, RESP_ERR, "The first entry must be after 1980.\n"); + } + + rrd_clear_error (); + status = rrd_create_r2(file,step,last_up,no_overwrite,ac,(const char **)av); + + if(!status) { + return send_response(sock, RESP_OK, "RRD created OK\n"); + } + return send_response(sock, RESP_ERR, "RRD Error: %s\n", rrd_get_error()); +} /* }}} static int handle_request_create */ + /* start "BATCH" processing */ static int batch_start (HANDLER_PROTO) /* {{{ */ { @@ -1848,6 +2040,47 @@ static command_t list_of_commands[] = { /* {{{ */ "The 'FETCH' can be used by the client to retrieve values from an RRD file.\n" }, { + "INFO", + handle_request_info, + CMD_CONTEXT_CLIENT, + "INFO \n", + "The INFO command retrieves information about a specified RRD file.\n" + "This is returned in standard rrdinfo format, a sequence of lines\n" + "with the format = \n" + "Note that this is the data as of the last update of the RRD file itself,\n" + "not the last time data was received via rrdcached, so there may be pending\n" + "updates in the queue. If this bothers you, then first run a FLUSH.\n" + }, + { + "FIRST", + handle_request_first, + CMD_CONTEXT_CLIENT, + "FIRST \n", + "The FIRST command retrieves the first data time for a specified RRA in\n" + "an RRD file.\n" + }, + { + "LAST", + handle_request_last, + CMD_CONTEXT_CLIENT, + "LAST \n", + "The LAST command retrieves the last update time for a specified RRD file.\n" + "Note that this is the time of the last update of the RRD file itself, not\n" + "the last time data was received via rrdcached, so there may be pending\n" + "updates in the queue. If this bothers you, then first run a FLUSH.\n" + }, + { + "CREATE", + handle_request_create, + CMD_CONTEXT_CLIENT | CMD_CONTEXT_BATCH, + "CREATE [-b start] [-s step] [-O] \n", + "The CREATE command will create an RRD file, overwriting any existing file\n" + "unless the -O option is given or rrdcached was started with the -O option.\n" + "The start parameter needs to be in seconds since 1/1/70 (AT-style syntax is\n" + "not acceptable) and the step is in seconds (default is 300).\n" + "The DS and RRA definitions are as for the 'rrdtool create' command.\n" + }, + { "QUIT", handle_request_quit, CMD_CONTEXT_CLIENT | CMD_CONTEXT_BATCH, @@ -1935,6 +2168,15 @@ static void socket_permission_copy (listen_socket_t *dest, /* {{{ */ dest->permissions = src->permissions; } /* }}} socket_permission_copy */ +static void socket_permission_set_all (listen_socket_t *sock) /* {{{ */ +{ + size_t i; + + sock->permissions = 0; + for (i = 0; i < list_of_commands_len; i++) + sock->permissions |= (1 << i); +} /* }}} void socket_permission_set_all */ + /* check whether commands are received in the expected context */ static int command_check_context(listen_socket_t *sock, command_t *cmd) { @@ -2407,6 +2649,21 @@ static void *connection_thread_main (void *args) /* {{{ */ } pthread_mutex_lock (&connection_threads_lock); +#ifdef HAVE_LIBWRAP + /* LIBWRAP does not support multiple threads! By putting this code + inside pthread_mutex_lock we do not have to worry about request_info + getting overwritten by another thread. + */ + struct request_info req; + request_init(&req, RQ_DAEMON, "rrdcache\0", RQ_FILE, fd, NULL ); + fromhost(&req); + if(!hosts_access(&req)) { + RRDD_LOG(LOG_INFO, "refused connection from %s", eval_client(&req)); + pthread_mutex_unlock (&connection_threads_lock); + close_connection(sock); + return NULL; + } +#endif /* HAVE_LIBWRAP */ connection_threads_num++; pthread_mutex_unlock (&connection_threads_lock); @@ -2883,6 +3140,10 @@ static int daemonize (void) /* {{{ */ strncpy(default_socket.addr, RRDCACHED_DEFAULT_ADDRESS, sizeof(default_socket.addr) - 1); default_socket.addr[sizeof(default_socket.addr) - 1] = '\0'; + + if (default_socket.permissions == 0) + socket_permission_set_all (&default_socket); + open_listen_socket (&default_socket); } @@ -2993,10 +3254,14 @@ static int read_options (int argc, char **argv) /* {{{ */ default_socket.socket_group = (gid_t)-1; default_socket.socket_permissions = (mode_t)-1; - while ((option = getopt(argc, argv, "gl:s:m:P:f:w:z:t:Bb:p:Fj:a:h?")) != -1) + while ((option = getopt(argc, argv, "Ogl:s:m:P:f:w:z:t:Bb:p:Fj:a:h?")) != -1) { switch (option) { + case 'O': + opt_no_overwrite = 1; + break; + case 'g': stay_foreground=1; break; @@ -3023,18 +3288,7 @@ static int read_options (int argc, char **argv) /* {{{ */ else /* if (default_socket.permissions == 0) */ { /* Add permission for ALL commands to the socket. */ - size_t i; - for (i = 0; i < list_of_commands_len; i++) - { - status = socket_permission_add (new, list_of_commands[i].cmd); - if (status != 0) - { - fprintf (stderr, "read_options: Adding permission \"%s\" to " - "socket failed. This should never happen, ever! Sorry.\n", - list_of_commands[i].cmd); - status = 4; - } - } + socket_permission_set_all (new); } /* }}} Done adding permissions. */ @@ -3321,6 +3575,7 @@ static int read_options (int argc, char **argv) /* {{{ */ "\n" "Valid options are:\n" " -l
Socket address to listen to.\n" + " Default: "RRDCACHED_DEFAULT_ADDRESS"\n" " -P Sets the permissions to assign to all following " "sockets\n" " -w Interval in which to write data.\n" @@ -3338,7 +3593,9 @@ static int read_options (int argc, char **argv) /* {{{ */ "for that group)\n" " -m File permissions (octal) of all following UNIX " "sockets\n" - " -a Memory allocation chunk size. Default is 1." + " -a Memory allocation chunk size. Default is 1.\n" + " -O Do not allow CREATE commands to overwrite existing\n" + " files, even if asked to.\n" "\n" "For more information and a detailed description of all options " "please refer\n"