* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#define RCSID "$Id: options.c,v 1.102 2008/06/15 06:53:06 paulus Exp $"
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
#include <ctype.h>
+#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <syslog.h>
#include <string.h>
#include <pwd.h>
-#ifdef PLUGIN
+#include <sys/param.h>
+#include <net/if.h>
+#ifdef PPP_WITH_PLUGINS
#include <dlfcn.h>
#endif
-#ifdef PPP_FILTER
+#ifdef PPP_WITH_FILTER
#include <pcap.h>
/*
* There have been 3 or 4 different names for this in libpcap CVS, but
#define DLT_PPP_PPPD DLT_PPP
#endif
#endif
-#endif /* PPP_FILTER */
+#endif /* PPP_WITH_FILTER */
-#include "pppd.h"
+#include "pppd-private.h"
+#include "options.h"
+#include "upap.h"
#include "pathnames.h"
#if defined(ultrix) || defined(NeXT)
-char *strdup __P((char *));
+char *strdup(char *);
#endif
-static const char rcsid[] = RCSID;
struct option_value {
struct option_value *next;
int debug = 0; /* Debug flag */
int kdebugflag = 0; /* Tell kernel to print debug messages */
int default_device = 1; /* Using /dev/tty or equivalent */
-char devnam[MAXPATHLEN]; /* Device name */
bool nodetach = 0; /* Don't detach from controlling tty */
bool updetach = 0; /* Detach once link is up */
bool master_detach; /* Detach when we're (only) multilink master */
+#ifdef SYSTEMD
+bool up_sdnotify = 0; /* Notify systemd once link is up */
+#endif
int maxconnect = 0; /* Maximum connect time */
char user[MAXNAMELEN]; /* Username for PAP */
char passwd[MAXSECRETLEN]; /* Password for PAP */
bool persist = 0; /* Reopen link after it goes down */
char our_name[MAXNAMELEN]; /* Our name for authentication purposes */
bool demand = 0; /* do dial-on-demand */
-char *ipparam = NULL; /* Extra parameter for ip up/down scripts */
int idle_time_limit = 0; /* Disconnect if idle for this many seconds */
int holdoff = 30; /* # seconds to pause before reconnecting */
bool holdoff_specified; /* true if a holdoff value has been given */
bool tune_kernel; /* may alter kernel settings */
int connect_delay = 1000; /* wait this many ms after connect script */
int req_unit = -1; /* requested interface unit */
-char req_ifname[MAXIFNAMELEN]; /* requested interface name */
+char path_ipup[MAXPATHLEN]; /* pathname of ip-up script */
+char path_ipdown[MAXPATHLEN];/* pathname of ip-down script */
+char req_ifname[IFNAMSIZ]; /* requested interface name */
bool multilink = 0; /* Enable multilink operation */
char *bundle_name = NULL; /* bundle name for multilink */
bool dump_options; /* print out option values */
+bool show_options; /* print all supported options and exit */
bool dryrun; /* print out option values and exit */
char *domain; /* domain name set by domain option */
int child_wait = 5; /* # seconds to wait for children at exit */
struct userenv *userenv_list; /* user environment variables */
int dfl_route_metric = -1; /* metric of the default route to set over the PPP link */
-#ifdef MAXOCTETS
+#ifdef PPP_WITH_IPV6CP
+char path_ipv6up[MAXPATHLEN]; /* pathname of ipv6-up script */
+char path_ipv6down[MAXPATHLEN]; /* pathname of ipv6-down script */
+#endif
+
unsigned int maxoctets = 0; /* default - no limit */
-int maxoctets_dir = 0; /* default - sum of traffic */
+session_limit_dir_t maxoctets_dir = PPP_OCTETS_DIRECTION_SUM; /* default - sum of traffic */
int maxoctets_timeout = 1; /* default 1 second */
-#endif
-extern option_t auth_options[];
+extern struct option auth_options[];
extern struct stat devstat;
-#ifdef PPP_FILTER
+#ifdef PPP_WITH_FILTER
struct bpf_program pass_filter;/* Filter program for packets to pass */
struct bpf_program active_filter; /* Filter program for link-active pkts */
#endif
-static option_t *curopt; /* pointer to option being processed */
+static struct option *curopt; /* pointer to option being processed */
char *current_option; /* the name of the option being parsed */
int privileged_option; /* set iff the current option came from root */
char *option_source; /* string saying where the option came from */
static int logfile_fd = -1; /* fd opened for log file */
static char logfile_name[MAXPATHLEN]; /* name of log file */
+static bool noipx_opt; /* dummy for noipx option */
+
/*
* Prototypes
*/
-static int setdomain __P((char **));
-static int readfile __P((char **));
-static int callfile __P((char **));
-static int showversion __P((char **));
-static int showhelp __P((char **));
-static void usage __P((void));
-static int setlogfile __P((char **));
-#ifdef PLUGIN
-static int loadplugin __P((char **));
+static int setdomain(char **);
+static int readfile(char **);
+static int callfile(char **);
+static int showversion(char **);
+static int showhelp(char **);
+static void usage(void);
+static int setlogfile(char **);
+#ifdef PPP_WITH_PLUGINS
+static int loadplugin(char **);
#endif
-#ifdef PPP_FILTER
-static int setpassfilter __P((char **));
-static int setactivefilter __P((char **));
+#ifdef PPP_WITH_FILTER
+static int setpassfilter(char **);
+static int setactivefilter(char **);
#endif
-#ifdef MAXOCTETS
-static int setmodir __P((char **));
-#endif
+static int setmodir(char **);
-static int user_setenv __P((char **));
-static void user_setprint __P((option_t *, printer_func, void *));
-static int user_unsetenv __P((char **));
-static void user_unsetprint __P((option_t *, printer_func, void *));
+static int user_setenv(char **);
+static void user_setprint(struct option *, printer_func, void *);
+static int user_unsetenv(char **);
+static void user_unsetprint(struct option *, printer_func, void *);
-static option_t *find_option __P((const char *name));
-static int process_option __P((option_t *, char *, char **));
-static int n_arguments __P((option_t *));
-static int number_option __P((char *, u_int32_t *, int));
+static struct option *find_option(char *name);
+static int process_option(struct option *, char *, char **);
+static int n_arguments(struct option *);
+static int number_option(char *, u_int32_t *, int);
/*
* Structure to store extra lists of options.
*/
struct option_list {
- option_t *options;
+ struct option *options;
struct option_list *next;
};
/*
* Valid arguments.
*/
-option_t general_options[] = {
+struct option general_options[] = {
{ "debug", o_int, &debug,
"Increase debugging level", OPT_INC | OPT_NOARG | 1 },
{ "-d", o_int, &debug,
"Don't detach from controlling tty", OPT_PRIO | 1 },
{ "-detach", o_bool, &nodetach,
"Don't detach from controlling tty", OPT_ALIAS | OPT_PRIOSUB | 1 },
+#ifdef SYSTEMD
+ { "up_sdnotify", o_bool, &up_sdnotify,
+ "Notify systemd once link is up (implies nodetach)",
+ OPT_PRIOSUB | OPT_A2COPY | 1, &nodetach },
+#endif
{ "updetach", o_bool, &updetach,
"Detach from controlling tty once link is up",
OPT_PRIOSUB | OPT_A2CLR | 1, &nodetach },
{ "--version", o_special_noarg, (void *)showversion,
"Show version number" },
+ { "-v", o_special_noarg, (void *)showversion,
+ "Show version number" },
+ { "show-options", o_bool, &show_options,
+ "Show all options and exit", 1 },
{ "--help", o_special_noarg, (void *)showhelp,
"Show brief listing of options" },
{ "-h", o_special_noarg, (void *)showhelp,
{ "ifname", o_string, req_ifname,
"Set PPP interface name",
- OPT_PRIO | OPT_PRIV | OPT_STATIC, NULL, MAXIFNAMELEN },
+ OPT_PRIO | OPT_PRIV | OPT_STATIC, NULL, IFNAMSIZ },
{ "dump", o_bool, &dump_options,
"Print out option values after parsing all options", 1 },
"Metric to use for the default route (Linux only; -1 for default behavior)",
OPT_PRIV|OPT_LLIMIT|OPT_INITONLY, NULL, 0, -1 },
-#ifdef HAVE_MULTILINK
+ { "ip-up-script", o_string, path_ipup,
+ "Set pathname of ip-up script",
+ OPT_PRIV|OPT_STATIC, NULL, MAXPATHLEN },
+ { "ip-down-script", o_string, path_ipdown,
+ "Set pathname of ip-down script",
+ OPT_PRIV|OPT_STATIC, NULL, MAXPATHLEN },
+
+#ifdef PPP_WITH_IPV6CP
+ { "ipv6-up-script", o_string, path_ipv6up,
+ "Set pathname of ipv6-up script",
+ OPT_PRIV|OPT_STATIC, NULL, MAXPATHLEN },
+ { "ipv6-down-script", o_string, path_ipv6down,
+ "Set pathname of ipv6-down script",
+ OPT_PRIV|OPT_STATIC, NULL, MAXPATHLEN },
+#endif
+
+#ifdef PPP_WITH_MULTILINK
{ "multilink", o_bool, &multilink,
"Enable multilink operation", OPT_PRIO | 1 },
{ "mp", o_bool, &multilink,
{ "bundle", o_string, &bundle_name,
"Bundle name for multilink", OPT_PRIO },
-#endif /* HAVE_MULTILINK */
+#endif /* PPP_WITH_MULTILINK */
-#ifdef PLUGIN
+#ifdef PPP_WITH_PLUGINS
{ "plugin", o_special, (void *)loadplugin,
"Load a plug-in module into pppd", OPT_PRIV | OPT_A2LIST },
#endif
-#ifdef PPP_FILTER
+#ifdef PPP_WITH_FILTER
{ "pass-filter", o_special, setpassfilter,
"set filter for packets to pass", OPT_PRIO },
"set filter for active pkts", OPT_PRIO },
#endif
-#ifdef MAXOCTETS
{ "maxoctets", o_int, &maxoctets,
"Set connection traffic limit",
OPT_PRIO | OPT_LLIMIT | OPT_NOINCR | OPT_ZEROINF },
"Set direction for limit traffic (sum,in,out,max)" },
{ "mo-timeout", o_int, &maxoctets_timeout,
"Check for traffic limit every N seconds", OPT_PRIO | OPT_LLIMIT | 1 },
-#endif
+
+ /* Dummy option, does nothing */
+ { "noipx", o_bool, &noipx_opt, NULL, OPT_NOPRINT | 1 },
{ NULL }
};
#define IMPLEMENTATION ""
#endif
-static char *usage_string = "\
-pppd version %s\n\
-Usage: %s [ options ], where options are:\n\
- <device> Communicate over the named device\n\
- <speed> Set the baud rate to <speed>\n\
- <loc>:<rem> Set the local and/or remote interface IP\n\
- addresses. Either one may be omitted.\n\
- asyncmap <n> Set the desired async map to hex <n>\n\
- auth Require authentication from peer\n\
- connect <p> Invoke shell command <p> to set up the serial line\n\
- crtscts Use hardware RTS/CTS flow control\n\
- defaultroute Add default route through interface\n\
- file <f> Take options from file <f>\n\
- modem Use modem control lines\n\
- mru <n> Set MRU value to <n> for negotiation\n\
-See pppd(8) for more options.\n\
-";
+int
+ppp_get_max_idle_time()
+{
+ return idle_time_limit;
+}
+
+void
+ppp_set_max_idle_time(unsigned int max)
+{
+ idle_time_limit = max;
+}
+
+int
+ppp_get_max_connect_time()
+{
+ return maxconnect;
+}
+
+void
+ppp_set_max_connect_time(unsigned int max)
+{
+ maxconnect = max;
+}
+
+void
+ppp_set_session_limit(unsigned int octets)
+{
+ maxoctets = octets;
+}
+
+void
+ppp_set_session_limit_dir(unsigned int dir)
+{
+ if (dir > 4)
+ dir = PPP_OCTETS_DIRECTION_SUM;
+ maxoctets_dir = (session_limit_dir_t) dir;
+}
+
+bool
+debug_on()
+{
+ return !!debug;
+}
+
+int
+ppp_get_path(ppp_path_t type, char *buf, size_t bufsz)
+{
+ const char *path;
+
+ if (buf && bufsz > 0) {
+ switch (type) {
+ case PPP_DIR_LOG:
+ path = PPP_PATH_VARLOG;
+ break;
+ case PPP_DIR_RUNTIME:
+ path = PPP_PATH_VARRUN;
+ break;
+#ifdef PPP_WITH_PLUGINS
+ case PPP_DIR_PLUGIN:
+ path = PPP_PATH_PLUGIN;
+ break;
+#endif
+ case PPP_DIR_CONF:
+ path = PPP_PATH_CONFDIR;
+ break;
+ }
+ return strlcpy(buf, path, bufsz);
+ }
+ return -1;
+}
+
+int
+ppp_get_filepath(ppp_path_t type, const char *name, char *buf, size_t bufsz)
+{
+ const char *path;
+
+ if (buf && bufsz > 0) {
+ switch (type) {
+ case PPP_DIR_LOG:
+ path = PPP_PATH_VARLOG;
+ break;
+ case PPP_DIR_RUNTIME:
+ path = PPP_PATH_VARRUN;
+ break;
+#ifdef PPP_WITH_PLUGINS
+ case PPP_DIR_PLUGIN:
+ path = PPP_PATH_PLUGIN;
+ break;
+#endif
+ case PPP_DIR_CONF:
+ path = PPP_PATH_CONFDIR;
+ break;
+ }
+ return slprintf(buf, bufsz, "%s/%s", path, name);
+ }
+ return -1;
+}
+
+bool ppp_persist()
+{
+ return !!persist;
+}
/*
* parse_args - parse a string of arguments from the command line.
*/
int
-parse_args(argc, argv)
- int argc;
- char **argv;
+parse_args(int argc, char **argv)
{
char *arg;
- option_t *opt;
+ struct option *opt;
int n;
privileged_option = privileged;
--argc;
opt = find_option(arg);
if (opt == NULL) {
- option_error("unrecognized option '%s'", arg);
+ ppp_option_error("unrecognized option '%s'", arg);
usage();
return 0;
}
n = n_arguments(opt);
if (argc < n) {
- option_error("too few parameters for option %s", arg);
+ ppp_option_error("too few parameters for option %s", arg);
return 0;
}
if (!process_option(opt, arg, argv))
* and interpret them.
*/
int
-options_from_file(filename, must_exist, check_prot, priv)
- char *filename;
- int must_exist;
- int check_prot;
- int priv;
+ppp_options_from_file(char *filename, int must_exist, int check_prot, int priv)
{
FILE *f;
int i, newline, ret, err;
- option_t *opt;
+ struct option *opt;
int oldpriv, n;
char *oldsource;
uid_t euid;
euid = geteuid();
if (check_prot && seteuid(getuid()) == -1) {
- option_error("unable to drop privileges to open %s: %m", filename);
+ ppp_option_error("unable to drop privileges to open %s: %m", filename);
return 0;
}
f = fopen(filename, "r");
warn("Warning: can't open options file %s: %m", filename);
return 1;
}
- option_error("Can't open options file %s: %m", filename);
+ ppp_option_error("Can't open options file %s: %m", filename);
return 0;
}
while (getword(f, cmd, &newline, filename)) {
opt = find_option(cmd);
if (opt == NULL) {
- option_error("In file %s: unrecognized option '%s'",
+ ppp_option_error("In file %s: unrecognized option '%s'",
filename, cmd);
goto err;
}
n = n_arguments(opt);
for (i = 0; i < n; ++i) {
if (!getword(f, args[i], &newline, filename)) {
- option_error(
+ ppp_option_error(
"In file %s: too few parameters for option '%s'",
filename, cmd);
goto err;
err:
fclose(f);
+ free(option_source);
privileged_option = oldpriv;
option_source = oldsource;
return ret;
* and if so, interpret options from it.
*/
int
-options_from_user()
+options_from_user(void)
{
char *user, *path, *file;
int ret;
pw = getpwuid(getuid());
if (pw == NULL || (user = pw->pw_dir) == NULL || user[0] == 0)
return 1;
- file = _PATH_USEROPT;
+ file = PPP_PATH_USEROPT;
pl = strlen(user) + strlen(file) + 2;
path = malloc(pl);
if (path == NULL)
novm("init file name");
slprintf(path, pl, "%s/%s", user, file);
option_priority = OPRIO_CFGFILE;
- ret = options_from_file(path, 0, 1, privileged);
+ ret = ppp_options_from_file(path, 0, 1, privileged);
free(path);
return ret;
}
* files a lower priority than the command line.
*/
int
-options_for_tty()
+options_for_tty(void)
{
char *dev, *path, *p;
int ret;
dev = p + 5;
if (dev[0] == 0 || strcmp(dev, "tty") == 0)
return 1; /* don't look for /etc/ppp/options.tty */
- pl = strlen(_PATH_TTYOPT) + strlen(dev) + 1;
+ pl = strlen(PPP_PATH_TTYOPT) + strlen(dev) + 1;
path = malloc(pl);
if (path == NULL)
novm("tty init file name");
- slprintf(path, pl, "%s%s", _PATH_TTYOPT, dev);
+ slprintf(path, pl, "%s%s", PPP_PATH_TTYOPT, dev);
/* Turn slashes into dots, for Solaris case (e.g. /dev/term/a) */
- for (p = path + strlen(_PATH_TTYOPT); *p != 0; ++p)
+ for (p = path + strlen(PPP_PATH_TTYOPT); *p != 0; ++p)
if (*p == '/')
*p = '.';
option_priority = OPRIO_CFGFILE;
- ret = options_from_file(path, 0, 0, 1);
+ ret = ppp_options_from_file(path, 0, 0, 1);
free(path);
return ret;
}
* options_from_list - process a string of options in a wordlist.
*/
int
-options_from_list(w, priv)
- struct wordlist *w;
- int priv;
+options_from_list(struct wordlist *w, int priv)
{
char *argv[MAXARGS];
- option_t *opt;
+ struct option *opt;
int i, n, ret = 0;
struct wordlist *w0;
while (w != NULL) {
opt = find_option(w->word);
if (opt == NULL) {
- option_error("In secrets file: unrecognized option '%s'",
+ ppp_option_error("In secrets file: unrecognized option '%s'",
w->word);
goto err;
}
for (i = 0; i < n; ++i) {
w = w->next;
if (w == NULL) {
- option_error(
+ ppp_option_error(
"In secrets file: too few parameters for option '%s'",
w0->word);
goto err;
}
/*
- * match_option - see if this option matches an option_t structure.
+ * match_option - see if this option matches an option structure.
*/
static int
-match_option(name, opt, dowild)
- char *name;
- option_t *opt;
- int dowild;
+match_option(char *name, struct option *opt, int dowild)
{
- int (*match) __P((char *, char **, int));
+ int (*match)(char *, char **, int);
if (dowild != (opt->type == o_wild))
return 0;
if (!dowild)
return strcmp(name, opt->name) == 0;
- match = (int (*) __P((char *, char **, int))) opt->addr;
+ match = (int (*)(char *, char **, int)) opt->addr;
return (*match)(name, NULL, 0);
}
* looking for an entry with the given name.
* This could be optimized by using a hash table.
*/
-static option_t *
-find_option(name)
- const char *name;
+static struct option *
+find_option(char *name)
{
- option_t *opt;
+ struct option *opt;
struct option_list *list;
int i, dowild;
* process_option - process one new-style option.
*/
static int
-process_option(opt, cmd, argv)
- option_t *opt;
- char *cmd;
- char **argv;
+process_option(struct option *opt, char *cmd, char **argv)
{
u_int32_t v;
int iv, a;
char *sv;
- int (*parser) __P((char **));
- int (*wildp) __P((char *, char **, int));
+ int (*parser)(char **);
+ int (*wildp)(char *, char **, int);
char *optopt = (opt->type == o_wild)? "": " option";
int prio = option_priority;
- option_t *mainopt = opt;
+ struct option *mainopt = opt;
current_option = opt->name;
if ((opt->flags & OPT_PRIVFIX) && privileged_option)
if (prio < mainopt->priority) {
/* new value doesn't override old */
if (prio == OPRIO_CMDLINE && mainopt->priority > OPRIO_ROOT) {
- option_error("%s%s set in %s cannot be overridden\n",
+ ppp_option_error("%s%s set in %s cannot be overridden\n",
opt->name, optopt, mainopt->source);
return 0;
}
opt->name, optopt, option_source);
}
- if ((opt->flags & OPT_INITONLY) && phase != PHASE_INITIALIZE) {
- option_error("%s%s cannot be changed after initialization",
+ if ((opt->flags & OPT_INITONLY) && !in_phase(PHASE_INITIALIZE)) {
+ ppp_option_error("%s%s cannot be changed after initialization",
opt->name, optopt);
return 0;
}
if ((opt->flags & OPT_PRIV) && !privileged_option) {
- option_error("using the %s%s requires root privilege",
+ ppp_option_error("using the %s%s requires root privilege",
opt->name, optopt);
return 0;
}
if ((opt->flags & OPT_ENABLE) && *(bool *)(opt->addr2) == 0) {
- option_error("%s%s is disabled", opt->name, optopt);
+ ppp_option_error("%s%s is disabled", opt->name, optopt);
return 0;
}
if ((opt->flags & OPT_DEVEQUIV) && devnam_fixed) {
- option_error("the %s%s may not be changed in %s",
+ ppp_option_error("the %s%s may not be changed in %s",
opt->name, optopt, option_source);
return 0;
}
case o_int:
iv = 0;
if ((opt->flags & OPT_NOARG) == 0) {
- if (!int_option(*argv, &iv))
+ if (!ppp_int_option(*argv, &iv))
return 0;
if ((((opt->flags & OPT_LLIMIT) && iv < opt->lower_limit)
|| ((opt->flags & OPT_ULIMIT) && iv > opt->upper_limit))
char *zok = (opt->flags & OPT_ZEROOK)? " zero or": "";
switch (opt->flags & OPT_LIMITS) {
case OPT_LLIMIT:
- option_error("%s value must be%s >= %d",
+ ppp_option_error("%s value must be%s >= %d",
opt->name, zok, opt->lower_limit);
break;
case OPT_ULIMIT:
- option_error("%s value must be%s <= %d",
+ ppp_option_error("%s value must be%s <= %d",
opt->name, zok, opt->upper_limit);
break;
case OPT_LIMITS:
- option_error("%s value must be%s between %d and %d",
+ ppp_option_error("%s value must be%s between %d and %d",
opt->name, zok, opt->lower_limit, opt->upper_limit);
break;
}
int oldv = *(int *)(opt->addr);
if ((opt->flags & OPT_ZEROINF) ?
(oldv != 0 && (iv == 0 || iv > oldv)) : (iv > oldv)) {
- option_error("%s value cannot be increased", opt->name);
+ ppp_option_error("%s value cannot be increased", opt->name);
return 0;
}
}
free(*optptr);
*optptr = sv;
}
+ /* obfuscate original argument for things like password */
+ if (opt->flags & OPT_HIDE) {
+ memset(*argv, '?', strlen(*argv));
+ *argv = "********";
+ }
break;
case o_special_noarg:
case o_special:
- parser = (int (*) __P((char **))) opt->addr;
+ parser = (int (*)(char **)) opt->addr;
curopt = opt;
if (!(*parser)(argv))
return 0;
break;
case o_wild:
- wildp = (int (*) __P((char *, char **, int))) opt->addr;
+ wildp = (int (*)(char *, char **, int)) opt->addr;
if (!(*wildp)(cmd, argv, 1))
return 0;
break;
* and source of the option value. Otherwise returns 0.
*/
int
-override_value(option, priority, source)
- const char *option;
- int priority;
- const char *source;
+override_value(char *option, int priority, const char *source)
{
- option_t *opt;
+ struct option *opt;
opt = find_option(option);
if (opt == NULL)
* n_arguments - tell how many arguments an option takes
*/
static int
-n_arguments(opt)
- option_t *opt;
+n_arguments(struct option *opt)
{
return (opt->type == o_bool || opt->type == o_special_noarg
|| (opt->flags & OPT_NOARG))? 0: 1;
* add_options - add a list of options to the set we grok.
*/
void
-add_options(opt)
- option_t *opt;
+ppp_add_options(struct option *opt)
{
struct option_list *list;
* check_options - check that options are valid and consistent.
*/
void
-check_options()
+check_options(void)
{
if (logfile_fd >= 0 && logfile_fd != log_to_fd)
close(logfile_fd);
* print_option - print out an option and its value
*/
static void
-print_option(opt, mainopt, printer, arg)
- option_t *opt, *mainopt;
- printer_func printer;
- void *arg;
+print_option(struct option *opt, struct option *mainopt, printer_func printer, void *arg)
{
int i, v;
char *p;
printer(arg, " ");
}
if (opt->flags & OPT_A2PRINTER) {
- void (*oprt) __P((option_t *, printer_func, void *));
- oprt = (void (*) __P((option_t *, printer_func,
- void *)))opt->addr2;
+ void (*oprt)(struct option *, printer_func, void *);
+ oprt = (void (*)(struct option *, printer_func, void *))
+ opt->addr2;
(*oprt)(opt, printer, arg);
} else if (opt->flags & OPT_A2STRVAL) {
p = (char *) opt->addr2;
if ((opt->flags & OPT_STATIC) == 0)
p = *(char **)p;
- printer("%q", p);
+ printer(arg, "%q", p);
} else if (opt->flags & OPT_A2LIST) {
struct option_value *ovp;
* array of options.
*/
static void
-print_option_list(opt, printer, arg)
- option_t *opt;
- printer_func printer;
- void *arg;
+print_option_list(struct option *opt, printer_func printer, void *arg)
{
while (opt->name != NULL) {
if (opt->priority != OPRIO_DEFAULT
* print_options - print out what options are in effect.
*/
void
-print_options(printer, arg)
- printer_func printer;
- void *arg;
+print_options(printer_func printer, void *arg)
{
struct option_list *list;
int i;
* usage - print out a message telling how to use the program.
*/
static void
-usage()
+usage(void)
{
- if (phase == PHASE_INITIALIZE)
- fprintf(stderr, usage_string, VERSION, progname);
+ FILE *fp = stderr;
+ if (in_phase(PHASE_INITIALIZE)) {
+ fprintf(fp, "%s v%s\n", PACKAGE_NAME, PACKAGE_VERSION);
+ fprintf(fp, "Copyright (C) 1999-2022 Paul Mackerras, and others. All rights reserved.\n\n");
+
+
+ fprintf(fp, "License BSD: The 3 clause BSD license <https://opensource.org/licenses/BSD-3-Clause>\n");
+ fprintf(fp, "This is free software: you are free to change and redistribute it.\n");
+ fprintf(fp, "There is NO WARRANTY, to the extent permitted by law.\n\n");
+
+ fprintf(fp, "Report Bugs:\n %s\n\n", PACKAGE_BUGREPORT);
+ fprintf(fp, "Usage: %s [ options ], where options are:\n", progname);
+ fprintf(fp, " <device> Communicate over the named device\n");
+ fprintf(fp, " <speed> Set the baud rate to <speed>\n");
+ fprintf(fp, " <loc>:<rem> Set the local and/or remote interface IP\n");
+ fprintf(fp, " addresses. Either one may be omitted.\n");
+ fprintf(fp, " asyncmap <n> Set the desired async map to hex <n>\n");
+ fprintf(fp, " auth Require authentication from peer\n");
+ fprintf(fp, " connect <p> Invoke shell command <p> to set up the serial line\n");
+ fprintf(fp, " crtscts Use hardware RTS/CTS flow control\n");
+ fprintf(fp, " defaultroute Add default route through interface\n");
+ fprintf(fp, " file <f> Take options from file <f>\n");
+ fprintf(fp, " modem Use modem control lines\n");
+ fprintf(fp, " mru <n> Set MRU value to <n> for negotiation\n");
+ fprintf(fp, " show-options Display an extended list of options\n");
+ fprintf(fp, "See pppd(8) for more options.\n");
+ }
}
/*
* showhelp - print out usage message and exit.
*/
static int
-showhelp(argv)
- char **argv;
+showhelp(char **argv)
{
- if (phase == PHASE_INITIALIZE) {
+ if (in_phase(PHASE_INITIALIZE)) {
usage();
exit(0);
}
* showversion - print out the version number and exit.
*/
static int
-showversion(argv)
- char **argv;
+showversion(char **argv)
{
- if (phase == PHASE_INITIALIZE) {
- fprintf(stderr, "pppd version %s\n", VERSION);
+ if (in_phase(PHASE_INITIALIZE)) {
+ fprintf(stdout, "pppd version %s\n", VERSION);
exit(0);
}
return 0;
}
/*
- * option_error - print a message about an error in an option.
+ * Print a set of options including the name of the group of options
+ */
+static void
+showopts_list(FILE *fp, const char *title, struct option *list, ...)
+{
+ struct option *opt = list;
+ va_list varg;
+
+ if (opt && opt->name) {
+ va_start(varg, list);
+ vfprintf(fp, title, varg);
+ fprintf(fp, ":\n");
+ va_end(varg);
+
+ do {
+ fprintf(fp, " %-22s %s\n", opt->name, opt->description?:"");
+ opt++;
+ } while (opt && opt->name);
+
+ fprintf(fp, "\n");
+ }
+}
+
+/*
+ * Dumps the list of available options
+ */
+void
+showopts(void)
+{
+ struct option_list *list;
+ FILE *fp = stderr;
+ int i = 0;
+
+ showopts_list(fp, "General Options",
+ general_options);
+
+ showopts_list(fp, "Authentication Options",
+ auth_options);
+
+ for (list = extra_options; list != NULL; list = list->next)
+ showopts_list(fp, "Extra Options", list->options);
+
+ showopts_list(fp, "Channel Options",
+ the_channel->options);
+
+ for (i = 0; protocols[i] != NULL; ++i) {
+ if (protocols[i]->options != NULL) {
+ showopts_list(fp, "%s Options",
+ protocols[i]->options,
+ protocols[i]->name);
+ }
+ }
+}
+
+/*
+ * ppp_option_error - print a message about an error in an option.
* The message is logged, and also sent to
- * stderr if phase == PHASE_INITIALIZE.
+ * stderr if in_phase(PHASE_INITIALIZE).
*/
void
-option_error __V((char *fmt, ...))
+ppp_option_error(char *fmt, ...)
{
va_list args;
char buf[1024];
-#if defined(__STDC__)
va_start(args, fmt);
-#else
- char *fmt;
- va_start(args);
- fmt = va_arg(args, char *);
-#endif
vslprintf(buf, sizeof(buf), fmt, args);
va_end(args);
- if (phase == PHASE_INITIALIZE)
+ if (in_phase(PHASE_INITIALIZE))
fprintf(stderr, "%s: %s\n", progname, buf);
syslog(LOG_ERR, "%s", buf);
}
* readable - check if a file is readable by the real user.
*/
int
-readable(fd)
- int fd;
+readable(int fd)
{
uid_t uid;
int i;
* \<newline> is ignored.
*/
int
-getword(f, word, newlinep, filename)
- FILE *f;
- char *word;
- int *newlinep;
- char *filename;
+getword(FILE *f, char *word, int *newlinep, char *filename)
{
int c, len, escape;
int quoted, comment;
c = getc(f);
}
+ word[MAXWORDLEN-1] = 0; /* make sure word is null-terminated */
/*
* End of the word: check for errors.
if (ferror(f)) {
if (errno == 0)
errno = EIO;
- option_error("Error reading %s: %m", filename);
+ ppp_option_error("Error reading %s: %m", filename);
die(1);
}
/*
if (len == 0)
return 0;
if (quoted)
- option_error("warning: quoted word runs to end of file (%.20s...)",
+ ppp_option_error("warning: quoted word runs to end of file (%.20s...)",
filename, word);
}
* Warn if the word was too long, and append a terminating null.
*/
if (len >= MAXWORDLEN) {
- option_error("warning: word in file %s too long (%.20s...)",
+ ppp_option_error("warning: word in file %s too long (%.20s...)",
filename, word);
len = MAXWORDLEN - 1;
}
* number_option - parse an unsigned numeric parameter for an option.
*/
static int
-number_option(str, valp, base)
- char *str;
- u_int32_t *valp;
- int base;
+number_option(char *str, u_int32_t *valp, int base)
{
char *ptr;
*valp = strtoul(str, &ptr, base);
if (ptr == str) {
- option_error("invalid numeric parameter '%s' for %s option",
+ ppp_option_error("invalid numeric parameter '%s' for %s option",
str, current_option);
return 0;
}
* if there is an error.
*/
int
-int_option(str, valp)
- char *str;
- int *valp;
+ppp_int_option(char *str, int *valp)
{
u_int32_t v;
* readfile - take commands from a file.
*/
static int
-readfile(argv)
- char **argv;
+readfile(char **argv)
{
- return options_from_file(*argv, 1, 1, privileged_option);
+ return ppp_options_from_file(*argv, 1, 1, privileged_option);
}
/*
* Name may not contain /../, start with / or ../, or end in /..
*/
static int
-callfile(argv)
- char **argv;
+callfile(char **argv)
{
char *fname, *arg, *p;
int l, ok;
}
}
if (!ok) {
- option_error("call option value may not contain .. or start with /");
+ ppp_option_error("call option value may not contain .. or start with /");
return 0;
}
- l = strlen(arg) + strlen(_PATH_PEERFILES) + 1;
+ l = strlen(arg) + strlen(PPP_PATH_PEERFILES) + 1;
if ((fname = (char *) malloc(l)) == NULL)
novm("call file name");
- slprintf(fname, l, "%s%s", _PATH_PEERFILES, arg);
+ slprintf(fname, l, "%s%s", PPP_PATH_PEERFILES, arg);
+ ppp_script_setenv("CALL_FILE", arg, 0);
- ok = options_from_file(fname, 1, 1, 1);
+ ok = ppp_options_from_file(fname, 1, 1, 1);
free(fname);
return ok;
}
-#ifdef PPP_FILTER
+#ifdef PPP_WITH_FILTER
/*
* setpassfilter - Set the pass filter for packets
*/
static int
-setpassfilter(argv)
- char **argv;
+setpassfilter(char **argv)
{
pcap_t *pc;
int ret = 1;
pc = pcap_open_dead(DLT_PPP_PPPD, 65535);
if (pcap_compile(pc, &pass_filter, *argv, 1, netmask) == -1) {
- option_error("error in pass-filter expression: %s\n",
+ ppp_option_error("error in pass-filter expression: %s\n",
pcap_geterr(pc));
ret = 0;
}
* setactivefilter - Set the active filter for packets
*/
static int
-setactivefilter(argv)
- char **argv;
+setactivefilter(char **argv)
{
pcap_t *pc;
int ret = 1;
pc = pcap_open_dead(DLT_PPP_PPPD, 65535);
if (pcap_compile(pc, &active_filter, *argv, 1, netmask) == -1) {
- option_error("error in active-filter expression: %s\n",
+ ppp_option_error("error in active-filter expression: %s\n",
pcap_geterr(pc));
ret = 0;
}
* setdomain - Set domain name to append to hostname
*/
static int
-setdomain(argv)
- char **argv;
+setdomain(char **argv)
{
gethostname(hostname, MAXNAMELEN);
if (**argv != 0) {
}
static int
-setlogfile(argv)
- char **argv;
+setlogfile(char **argv)
{
int fd, err;
uid_t euid;
euid = geteuid();
if (!privileged_option && seteuid(getuid()) == -1) {
- option_error("unable to drop permissions to open %s: %m", *argv);
+ ppp_option_error("unable to drop permissions to open %s: %m", *argv);
return 0;
}
fd = open(*argv, O_WRONLY | O_APPEND | O_CREAT | O_EXCL, 0644);
fatal("unable to regain privileges: %m");
if (fd < 0) {
errno = err;
- option_error("Can't open log file %s: %m", *argv);
+ ppp_option_error("Can't open log file %s: %m", *argv);
return 0;
}
strlcpy(logfile_name, *argv, sizeof(logfile_name));
return 1;
}
-#ifdef MAXOCTETS
static int
-setmodir(argv)
- char **argv;
+setmodir(char **argv)
{
if(*argv == NULL)
return 0;
}
return 1;
}
-#endif
-#ifdef PLUGIN
+#ifdef PPP_WITH_PLUGINS
static int
-loadplugin(argv)
- char **argv;
+loadplugin(char **argv)
{
char *arg = *argv;
void *handle;
const char *err;
- void (*init) __P((void));
+ void (*init)(void);
char *path = arg;
const char *vers;
if (strchr(arg, '/') == 0) {
- const char *base = _PATH_PLUGIN;
+ const char *base = PPP_PATH_PLUGIN;
int l = strlen(base) + strlen(arg) + 2;
path = malloc(l);
if (path == 0)
if (handle == 0) {
err = dlerror();
if (err != 0)
- option_error("%s", err);
- option_error("Couldn't load plugin %s", arg);
+ ppp_option_error("%s", err);
+ ppp_option_error("Couldn't load plugin %s", arg);
goto err;
}
init = (void (*)(void))dlsym(handle, "plugin_init");
if (init == 0) {
- option_error("%s has no initialization entry point", arg);
+ ppp_option_error("%s has no initialization entry point", arg);
goto errclose;
}
vers = (const char *) dlsym(handle, "pppd_version");
if (vers == 0) {
warn("Warning: plugin %s has no version information", arg);
} else if (strcmp(vers, VERSION) != 0) {
- option_error("Plugin %s is for pppd version %s, this is %s",
+ ppp_option_error("Plugin %s is for pppd version %s, this is %s",
arg, vers, VERSION);
goto errclose;
}
info("Plugin %s loaded.", arg);
(*init)();
+ if (path != arg)
+ free(path);
return 1;
errclose:
free(path);
return 0;
}
-#endif /* PLUGIN */
+#endif /* PPP_WITH_PLUGINS */
/*
* Set an environment variable specified by the user.
*/
static int
-user_setenv(argv)
- char **argv;
+user_setenv(char **argv)
{
char *arg = argv[0];
char *eqp;
struct userenv *uep, **insp;
if ((eqp = strchr(arg, '=')) == NULL) {
- option_error("missing = in name=value: %s", arg);
+ ppp_option_error("missing = in name=value: %s", arg);
return 0;
}
if (eqp == arg) {
- option_error("missing variable name: %s", arg);
+ ppp_option_error("missing variable name: %s", arg);
return 0;
}
for (uep = userenv_list; uep != NULL; uep = uep->ue_next) {
/* The name never changes, so allocate it with the structure */
if (uep == NULL) {
uep = malloc(sizeof (*uep) + (eqp-arg));
+ if (uep == NULL) {
+ novm("environment variable");
+ return 1;
+ }
strncpy(uep->ue_name, arg, eqp-arg);
uep->ue_name[eqp-arg] = '\0';
uep->ue_next = NULL;
}
static void
-user_setprint(opt, printer, arg)
- option_t *opt;
- printer_func printer;
- void *arg;
+user_setprint(struct option *opt, printer_func printer, void *arg)
{
struct userenv *uep, *uepnext;
}
static int
-user_unsetenv(argv)
- char **argv;
+user_unsetenv(char **argv)
{
struct userenv *uep, **insp;
char *arg = argv[0];
if (strchr(arg, '=') != NULL) {
- option_error("unexpected = in name: %s", arg);
+ ppp_option_error("unexpected = in name: %s", arg);
return 0;
}
- if (arg == '\0') {
- option_error("missing variable name for unset");
+ if (*arg == '\0') {
+ ppp_option_error("missing variable name for unset");
return 0;
}
for (uep = userenv_list; uep != NULL; uep = uep->ue_next) {
/* The name never changes, so allocate it with the structure */
if (uep == NULL) {
uep = malloc(sizeof (*uep) + strlen(arg));
+ if (uep == NULL) {
+ novm("environment variable");
+ return 1;
+ }
strcpy(uep->ue_name, arg);
uep->ue_next = NULL;
insp = &userenv_list;
}
static void
-user_unsetprint(opt, printer, arg)
- option_t *opt;
- printer_func printer;
- void *arg;
+user_unsetprint(struct option *opt, printer_func printer, void *arg)
{
struct userenv *uep, *uepnext;
projects / ppp.git / blobdiff