diff options
Diffstat (limited to 'tests/tdef/tdef_vty_test_dynamic.c')
-rw-r--r-- | tests/tdef/tdef_vty_test_dynamic.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/tests/tdef/tdef_vty_test_dynamic.c b/tests/tdef/tdef_vty_test_dynamic.c new file mode 100644 index 00000000..20dae535 --- /dev/null +++ b/tests/tdef/tdef_vty_test_dynamic.c @@ -0,0 +1,362 @@ +/* Test implementation for osmo_tdef VTY configuration API. */ +/* + * (C) 2019 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> + * + * All Rights Reserved + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Author: Neels Hofmeyr <nhofmeyr@sysmocom.de> + * + * 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 2 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, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#define _GNU_SOURCE +#include <getopt.h> +#include <signal.h> +#include <limits.h> +#include <string.h> + +#include <osmocom/core/application.h> + +#include <osmocom/vty/command.h> +#include <osmocom/vty/misc.h> +#include <osmocom/vty/telnet_interface.h> + +#include <osmocom/core/tdef.h> +#include <osmocom/vty/tdef_vty.h> + +#include <stdlib.h> + +#include "config.h" + +void *root_ctx = NULL; + +/* ------------------- HERE IS THE INTERESTING TDEF RELEVANT PART ------------------- */ + +/* This example keeps a separate list of timers for each instance of a dynamically allocated instance of a VTY node, + * for example of keeping separate timers for each BTS in a BSC. + */ + +static const struct osmo_tdef bts_default_tdefs[] = { + { .T=1111, .default_val=2, .desc="Dynamic Duo" }, + { .T=2222, .default_val=1, .desc="BATMAN" }, + { .T=3333, .default_val=12, .desc="Dadadadadadadadadadadada" }, + { .T=4444, .default_val=500, .unit=OSMO_TDEF_MS, .desc="POW!" }, + {} +}; + + +/* Boilerplate dynamic VTY node ... */ + +enum tdef_vty_test_nodes { + MEMBER_NODE = _LAST_OSMOVTY_NODE + 1, +}; + +static struct cmd_node member_node = { + MEMBER_NODE, + "%s(config-member)# ", + 1, +}; + +struct member { + struct llist_head entry; + char name[23]; + struct osmo_tdef *tdefs; +}; + +LLIST_HEAD(all_members); + +struct member *member_alloc(const char *name) +{ + struct member *m = talloc_zero(root_ctx, struct member); + osmo_strlcpy(m->name, name, sizeof(m->name)); + + /* DYNAMIC TDEF COPIES */ + m->tdefs = (struct osmo_tdef*)talloc_size(m, sizeof(bts_default_tdefs)); + memcpy((char*)m->tdefs, (char*)&bts_default_tdefs, sizeof(bts_default_tdefs)); + osmo_tdefs_reset(m->tdefs); + + llist_add_tail(&m->entry, &all_members); + return m; +} + +struct member *member_find(const char *name) +{ + struct member *m; + llist_for_each_entry(m, &all_members, entry) { + if (!strcmp(m->name, name)) + return m; + } + return NULL; +} + +DEFUN(cfg_member, cfg_member_cmd, + "member NAME", + "Enter member node\n" "Existing or new member node name\n") +{ + const char *name = argv[0]; + struct member *m = member_find(name); + if (!m) + m = member_alloc(name); + vty->index = m; + vty->node = MEMBER_NODE; + return CMD_SUCCESS; +} + + +/* TDEF SPECIFIC VTY */ + +static bool startswith(const char *str, const char *startswith_str) +{ + if (!startswith_str) + return true; + if (!str) + return false; + return strncmp(str, startswith_str, strlen(startswith_str)) == 0; +} + +DEFUN(show_timer, show_member_timer_cmd, + "show member-timer [NAME] " OSMO_TDEF_VTY_ARG_T_OPTIONAL, + SHOW_STR "Show timers for a specific member" "member name\n" + OSMO_TDEF_VTY_DOC_T) +{ + const char *name = argc > 0 ? argv[0] : NULL; + struct member *m; + const char *T_arg = argc > 1 ? argv[1] : NULL; + int shown = 0; + + llist_for_each_entry(m, &all_members, entry) { + if (!name || startswith(m->name, name)) { + osmo_tdef_vty_show_cmd(vty, m->tdefs, T_arg, "%11s: ", m->name); + shown ++; + } + } + if (!shown) { + vty_out(vty, "%% No such member: %s%s", name ? : "(none)", VTY_NEWLINE); + return CMD_WARNING; + } + return CMD_SUCCESS; +} + +DEFUN(cfg_member_timer, cfg_member_timer_cmd, + "timer " OSMO_TDEF_VTY_ARG_SET_OPTIONAL, + "Configure or show timers for this member\n" + OSMO_TDEF_VTY_DOC_SET) +{ + struct member *m = vty->index; + + if (!m || !m->tdefs) { + vty_out(vty, "%% No timers here%s", VTY_NEWLINE); + return CMD_WARNING; + } + + /* If any arguments are missing, redirect to 'show' */ + if (argc < 2) { + const char *T_arg = argc > 0 ? argv[0] : NULL; + return osmo_tdef_vty_show_cmd(vty, m->tdefs, T_arg, "%11s: ", m->name); + } + + return osmo_tdef_vty_set_cmd(vty, m->tdefs, argv); +} + +static int config_write_member(struct vty *vty) +{ + struct member *m; + llist_for_each_entry(m, &all_members, entry) { + vty_out(vty, "member %s%s", m->name, VTY_NEWLINE); + osmo_tdef_vty_write(vty, m->tdefs, " timer "); + } + + return CMD_SUCCESS; +} + +static void member_init_vty() +{ + install_node(&member_node, config_write_member); + install_element(CONFIG_NODE, &cfg_member_cmd); + + install_element_ve(&show_member_timer_cmd); + install_element(MEMBER_NODE, &cfg_member_timer_cmd); +} + +/* ------------------- THE REST is just boilerplate osmo main() ------------------- */ + +static void print_help() +{ + printf( "options:\n" + " -h --help this text\n" + " -d --debug MASK Enable debugging (e.g. -d DRSL:DOML:DLAPDM)\n" + " -D --daemonize For the process into a background daemon\n" + " -c --config-file Specify the filename of the config file\n" + " -s --disable-color Don't use colors in stderr log output\n" + " -T --timestamp Prefix every log line with a timestamp\n" + " -V --version Print version information and exit\n" + " -e --log-level Set a global log-level\n" + ); +} + +static struct { + const char *config_file; + int daemonize; +} cmdline_config = {}; + +static void handle_options(int argc, char **argv) +{ + while (1) { + int option_idx = 0, c; + static const struct option long_options[] = { + { "help", 0, 0, 'h' }, + { "debug", 1, 0, 'd' }, + { "daemonize", 0, 0, 'D' }, + { "config-file", 1, 0, 'c' }, + { "disable-color", 0, 0, 's' }, + { "timestamp", 0, 0, 'T' }, + { "version", 0, 0, 'V' }, + { "log-level", 1, 0, 'e' }, + {} + }; + + c = getopt_long(argc, argv, "hc:d:Dc:sTVe:", + long_options, &option_idx); + if (c == -1) + break; + + switch (c) { + case 'h': + print_help(); + exit(0); + case 's': + log_set_use_color(osmo_stderr_target, 0); + break; + case 'd': + log_parse_category_mask(osmo_stderr_target, optarg); + break; + case 'D': + cmdline_config.daemonize = 1; + break; + case 'c': + cmdline_config.config_file = optarg; + break; + case 'T': + log_set_print_timestamp(osmo_stderr_target, 1); + break; + case 'e': + log_set_log_level(osmo_stderr_target, atoi(optarg)); + break; + case 'V': + print_version(1); + exit(0); + break; + default: + /* catch unknown options *as well as* missing arguments. */ + fprintf(stderr, "Error in command line options. Exiting.\n"); + exit(-1); + } + } +} + +static int quit = 0; + +static void signal_handler(int signal) +{ + fprintf(stdout, "signal %u received\n", signal); + + switch (signal) { + case SIGINT: + case SIGTERM: + quit++; + break; + case SIGABRT: + osmo_generate_backtrace(); + /* in case of abort, we want to obtain a talloc report + * and then return to the caller, who will abort the process */ + case SIGUSR1: + talloc_report(tall_vty_ctx, stderr); + talloc_report_full(root_ctx, stderr); + break; + case SIGUSR2: + talloc_report_full(tall_vty_ctx, stderr); + break; + default: + break; + } +} + +static struct vty_app_info vty_info = { + .name = "tdef_vty_test", + .version = PACKAGE_VERSION, +}; + +static const struct log_info_cat default_categories[] = {}; + +const struct log_info log_info = { + .cat = default_categories, + .num_cat = ARRAY_SIZE(default_categories), +}; + +int main(int argc, char **argv) +{ + int rc; + + root_ctx = talloc_named_const(NULL, 0, "tdef_vty_test"); + + osmo_init_logging2(root_ctx, &log_info); + + vty_info.tall_ctx = root_ctx; + vty_init(&vty_info); + osmo_talloc_vty_add_cmds(); + + member_init_vty(); /* <--- relevant init for this example */ + + handle_options(argc, argv); + + if (cmdline_config.config_file) { + rc = vty_read_config_file(cmdline_config.config_file, NULL); + if (rc < 0) { + fprintf(stderr, "Failed to parse the config file: '%s'\n", cmdline_config.config_file); + return 1; + } + } + + rc = telnet_init_dynif(root_ctx, NULL, vty_get_bind_addr(), 42042); + if (rc < 0) + return 2; + + signal(SIGINT, &signal_handler); + signal(SIGTERM, &signal_handler); + signal(SIGABRT, &signal_handler); + signal(SIGUSR1, &signal_handler); + signal(SIGUSR2, &signal_handler); + osmo_init_ignore_signals(); + + if (cmdline_config.daemonize) { + rc = osmo_daemonize(); + if (rc < 0) { + perror("Error during daemonize"); + return 6; + } + } + + while (!quit) { + log_reset_context(); + osmo_select_main(0); + } + + talloc_free(root_ctx); + talloc_free(tall_vty_ctx); + + return 0; +} |