diff options
Diffstat (limited to 'src/cfgparse-unix.c')
| -rw-r--r-- | src/cfgparse-unix.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/cfgparse-unix.c b/src/cfgparse-unix.c new file mode 100644 index 0000000..b1fb1e2 --- /dev/null +++ b/src/cfgparse-unix.c @@ -0,0 +1,135 @@ +/* + * Configuration parsing for UNIX sockets (bind and server keywords) + * + * Copyright 2000-2020 Willy Tarreau <w@1wt.eu> + * + * 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. + * + */ + +#include <ctype.h> +#include <errno.h> +#include <grp.h> +#include <pwd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#include <sys/param.h> +#include <sys/socket.h> +#include <sys/types.h> +#include <sys/un.h> + +#include <netinet/tcp.h> +#include <netinet/in.h> + +#include <haproxy/api.h> +#include <haproxy/arg.h> +#include <haproxy/errors.h> +#include <haproxy/list.h> +#include <haproxy/listener.h> +#include <haproxy/namespace.h> +#include <haproxy/proxy-t.h> +#include <haproxy/server.h> +#include <haproxy/tools.h> + +/* parse the "mode" bind keyword */ +static int bind_parse_mode(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) +{ + char *endptr; + + conf->settings.ux.mode = strtol(args[cur_arg + 1], &endptr, 8); + + if (!*args[cur_arg + 1] || *endptr) { + memprintf(err, "'%s' : missing or invalid mode '%s' (octal integer expected)", args[cur_arg], args[cur_arg + 1]); + return ERR_ALERT | ERR_FATAL; + } + + return 0; +} + +/* parse the "gid" bind keyword */ +static int bind_parse_gid(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) +{ + if (!*args[cur_arg + 1]) { + memprintf(err, "'%s' : missing value", args[cur_arg]); + return ERR_ALERT | ERR_FATAL; + } + + conf->settings.ux.gid = atol(args[cur_arg + 1]); + return 0; +} + +/* parse the "group" bind keyword */ +static int bind_parse_group(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) +{ + struct group *group; + + if (!*args[cur_arg + 1]) { + memprintf(err, "'%s' : missing group name", args[cur_arg]); + return ERR_ALERT | ERR_FATAL; + } + + group = getgrnam(args[cur_arg + 1]); + if (!group) { + memprintf(err, "'%s' : unknown group name '%s'", args[cur_arg], args[cur_arg + 1]); + return ERR_ALERT | ERR_FATAL; + } + + conf->settings.ux.gid = group->gr_gid; + return 0; +} + +/* parse the "uid" bind keyword */ +static int bind_parse_uid(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) +{ + if (!*args[cur_arg + 1]) { + memprintf(err, "'%s' : missing value", args[cur_arg]); + return ERR_ALERT | ERR_FATAL; + } + + conf->settings.ux.uid = atol(args[cur_arg + 1]); + return 0; +} + +/* parse the "user" bind keyword */ +static int bind_parse_user(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) +{ + struct passwd *user; + + if (!*args[cur_arg + 1]) { + memprintf(err, "'%s' : missing user name", args[cur_arg]); + return ERR_ALERT | ERR_FATAL; + } + + user = getpwnam(args[cur_arg + 1]); + if (!user) { + memprintf(err, "'%s' : unknown user name '%s'", args[cur_arg], args[cur_arg + 1]); + return ERR_ALERT | ERR_FATAL; + } + + conf->settings.ux.uid = user->pw_uid; + return 0; +} + +/* Note: must not be declared <const> as its list will be overwritten. + * Please take care of keeping this list alphabetically sorted, doing so helps + * all code contributors. + * Optional keywords are also declared with a NULL ->parse() function so that + * the config parser can report an appropriate error when a known keyword was + * not enabled. + */ +static struct bind_kw_list bind_kws = { "UNIX", { }, { + { "gid", bind_parse_gid, 1 }, /* set the socket's gid */ + { "group", bind_parse_group, 1 }, /* set the socket's gid from the group name */ + { "mode", bind_parse_mode, 1 }, /* set the socket's mode (eg: 0644)*/ + { "uid", bind_parse_uid, 1 }, /* set the socket's uid */ + { "user", bind_parse_user, 1 }, /* set the socket's uid from the user name */ + { NULL, NULL, 0 }, +}}; + +INITCALL1(STG_REGISTER, bind_register_keywords, &bind_kws); |