Page MenuHomeFreeBSD
Differential D4452 Diff 11545 head/usr.sbin/jls/jls.c

Changeset View

Standalone View

View Options

head/usr.sbin/jls/jls.c

/*- /*-
* Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
* Copyright (c) 2008 Bjoern A. Zeeb <bz@FreeBSD.org> * Copyright (c) 2008 Bjoern A. Zeeb <bz@FreeBSD.org>
* Copyright (c) 2009 James Gritton <jamie@FreeBSD.org> * Copyright (c) 2009 James Gritton <jamie@FreeBSD.org>
* Copyright (c) 2015 Emmanuel Vadot <manu@bocal.org>
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
* are met: * are met:
* 1. Redistributions of source code must retain the above copyright * 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer. * notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright * 2. Redistributions in binary form must reproduce the above copyright
Show All 27 Lines
#include <err.h> #include <err.h>
#include <errno.h> #include <errno.h>
#include <jail.h> #include <jail.h>
#include <limits.h> #include <limits.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
#include <libxo/xo.h>
#define JP_USER 0x01000000 #define JP_USER 0x01000000
#define JP_OPT 0x02000000 #define JP_OPT 0x02000000
#define JLS_XO_VERSION "1"
#define PRINT_DEFAULT 0x01 #define PRINT_DEFAULT 0x01
#define PRINT_HEADER 0x02 #define PRINT_HEADER 0x02
#define PRINT_NAMEVAL 0x04 #define PRINT_NAMEVAL 0x04
#define PRINT_QUOTED 0x08 #define PRINT_QUOTED 0x08
#define PRINT_SKIP 0x10 #define PRINT_SKIP 0x10
#define PRINT_VERBOSE 0x20 #define PRINT_VERBOSE 0x20
#define PRINT_JAIL_NAME 0x40 #define PRINT_JAIL_NAME 0x40
static struct jailparam *params; static struct jailparam *params;
static int *param_parent; static int *param_parent;
static int nparams; static int nparams;
#ifdef INET6 #ifdef INET6
static int ip6_ok; static int ip6_ok;
#endif #endif
#ifdef INET #ifdef INET
static int ip4_ok; static int ip4_ok;
#endif #endif
static int add_param(const char *name, void *value, size_t valuelen, static int add_param(const char *name, void *value, size_t valuelen,
struct jailparam *source, unsigned flags); struct jailparam *source, unsigned flags);
static int sort_param(const void *a, const void *b); static int sort_param(const void *a, const void *b);
static char *noname(const char *name); static char *noname(const char *name);
static char *nononame(const char *name); static char *nononame(const char *name);
static int print_jail(int pflags, int jflags); static int print_jail(int pflags, int jflags);
static void quoted_print(char *str); static void quoted_print(int pflags, char *name, char *value);
int int
main(int argc, char **argv) main(int argc, char **argv)
{ {
char *dot, *ep, *jname, *pname; char *dot, *ep, *jname, *pname;
int c, i, jflags, jid, lastjid, pflags, spc; int c, i, jflags, jid, lastjid, pflags, spc;
argc = xo_parse_args(argc, argv);
if (argc < 0)
exit(1);
xo_set_version(JLS_XO_VERSION);
jname = NULL; jname = NULL;
pflags = jflags = jid = 0; pflags = jflags = jid = 0;
while ((c = getopt(argc, argv, "adj:hNnqsv")) >= 0) while ((c = getopt(argc, argv, "adj:hNnqsv")) >= 0)
switch (c) { switch (c) {
case 'a': case 'a':
case 'd': case 'd':
jflags |= JAIL_DYING; jflags |= JAIL_DYING;
break; break;
Show All 22 Lines case 's':
PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP; PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP;
break; break;
case 'v': case 'v':
pflags = (pflags & pflags = (pflags &
~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) | ~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) |
PRINT_VERBOSE; PRINT_VERBOSE;
break; break;
default: default:
errx(1, "usage: jls [-dhNnqv] [-j jail] [param ...]"); xo_errx(1, "usage: jls [-dhNnqv] [-j jail] [param ...]");
} }
#ifdef INET6 #ifdef INET6
ip6_ok = feature_present("inet6"); ip6_ok = feature_present("inet6");
#endif #endif
#ifdef INET #ifdef INET
ip4_ok = feature_present("inet"); ip4_ok = feature_present("inet");
#endif #endif
▲ Show 20 Lines • Show All 60 Lines • ▼ Show 20 Lines#endif
if (jid != 0) if (jid != 0)
add_param("jid", &jid, sizeof(jid), NULL, 0); add_param("jid", &jid, sizeof(jid), NULL, 0);
else if (jname != NULL) else if (jname != NULL)
add_param("name", jname, strlen(jname), NULL, 0); add_param("name", jname, strlen(jname), NULL, 0);
else else
add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0); add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0);
/* Print a header line if requested. */ /* Print a header line if requested. */
if (pflags & PRINT_VERBOSE) if (pflags & PRINT_VERBOSE) {
printf(" JID Hostname Path\n" xo_emit("{T:/%3s}{T:JID}{P: }{T:Hostname}{Pd:/%22s}{T:Path}\n",
" Name State\n" "", "");
" CPUSetID\n" xo_emit("{P:/%8s}{T:Name}{Pd:/%26s}{T:State}\n", "", "");
" IP Address(es)\n"); xo_emit("{P:/%8s}{T:CPUSetID}\n", "");
xo_emit("{P:/%8s}{T:IP Address(es)}\n", "");
}
else if (pflags & PRINT_DEFAULT) else if (pflags & PRINT_DEFAULT)
if (pflags & PRINT_JAIL_NAME) if (pflags & PRINT_JAIL_NAME)
printf(" JID IP Address " xo_emit("{P: }{T:JID/%-15s}{P: }{T:IP Address/%-15s}"
"Hostname Path\n"); "{P: }{T:Hostname/%-29s}{P: }{T:Path}\n");
else else
printf(" JID IP Address " xo_emit("{T:JID/%6s}{P: }{T:IP Address}{P:/%6s}"
"Hostname Path\n"); "{T:Hostname}{P:/%22s}{T:Path}\n", "", "");
else if (pflags & PRINT_HEADER) { else if (pflags & PRINT_HEADER) {
for (i = spc = 0; i < nparams; i++) for (i = spc = 0; i < nparams; i++)
if (params[i].jp_flags & JP_USER) { if (params[i].jp_flags & JP_USER) {
if (spc) if (spc)
putchar(' '); xo_emit("{P: }");
else else
spc = 1; spc = 1;
fputs(params[i].jp_name, stdout); xo_emit(params[i].jp_name);
} }
putchar('\n'); xo_emit("{P:\n}");
} }
xo_open_container("jail-information");
xo_open_list("jail");
/* Fetch the jail(s) and print the parameters. */ /* Fetch the jail(s) and print the parameters. */
if (jid != 0 || jname != NULL) { if (jid != 0 || jname != NULL) {
if (print_jail(pflags, jflags) < 0) if (print_jail(pflags, jflags) < 0)
errx(1, "%s", jail_errmsg); xo_errx(1, "%s", jail_errmsg);
} else { } else {
for (lastjid = 0; for (lastjid = 0;
(lastjid = print_jail(pflags, jflags)) >= 0; ) (lastjid = print_jail(pflags, jflags)) >= 0; )
; ;
if (errno != 0 && errno != ENOENT) if (errno != 0 && errno != ENOENT)
errx(1, "%s", jail_errmsg); xo_errx(1, "%s", jail_errmsg);
} }
xo_close_list("jail");
xo_close_container("jail-information");
xo_finish();
return (0); return (0);
} }
static int static int
add_param(const char *name, void *value, size_t valuelen, add_param(const char *name, void *value, size_t valuelen,
struct jailparam *source, unsigned flags) struct jailparam *source, unsigned flags)
{ {
struct jailparam *param, *tparams; struct jailparam *param, *tparams;
int i, tnparams; int i, tnparams;
static int paramlistsize; static int paramlistsize;
/* The pseudo-parameter "all" scans the list of available parameters. */ /* The pseudo-parameter "all" scans the list of available parameters. */
if (!strcmp(name, "all")) { if (!strcmp(name, "all")) {
tnparams = jailparam_all(&tparams); tnparams = jailparam_all(&tparams);
if (tnparams < 0) if (tnparams < 0)
errx(1, "%s", jail_errmsg); xo_errx(1, "%s", jail_errmsg);
qsort(tparams, (size_t)tnparams, sizeof(struct jailparam), qsort(tparams, (size_t)tnparams, sizeof(struct jailparam),
sort_param); sort_param);
for (i = 0; i < tnparams; i++) for (i = 0; i < tnparams; i++)
add_param(tparams[i].jp_name, NULL, (size_t)0, add_param(tparams[i].jp_name, NULL, (size_t)0,
tparams + i, flags); tparams + i, flags);
free(tparams); free(tparams);
return -1; return -1;
} }
/* Check for repeat parameters. */ /* Check for repeat parameters. */
for (i = 0; i < nparams; i++) for (i = 0; i < nparams; i++)
if (!strcmp(name, params[i].jp_name)) { if (!strcmp(name, params[i].jp_name)) {
if (value != NULL && jailparam_import_raw(params + i, if (value != NULL && jailparam_import_raw(params + i,
value, valuelen) < 0) value, valuelen) < 0)
errx(1, "%s", jail_errmsg); xo_errx(1, "%s", jail_errmsg);
params[i].jp_flags |= flags; params[i].jp_flags |= flags;
if (source != NULL) if (source != NULL)
jailparam_free(source, 1); jailparam_free(source, 1);
return i; return i;
} }
/* Make sure there is room for the new param record. */ /* Make sure there is room for the new param record. */
if (!nparams) { if (!nparams) {
paramlistsize = 32; paramlistsize = 32;
params = malloc(paramlistsize * sizeof(*params)); params = malloc(paramlistsize * sizeof(*params));
param_parent = malloc(paramlistsize * sizeof(*param_parent)); param_parent = malloc(paramlistsize * sizeof(*param_parent));
if (params == NULL || param_parent == NULL) if (params == NULL || param_parent == NULL)
err(1, "malloc"); xo_err(1, "malloc");
} else if (nparams >= paramlistsize) { } else if (nparams >= paramlistsize) {
paramlistsize *= 2; paramlistsize *= 2;
params = realloc(params, paramlistsize * sizeof(*params)); params = realloc(params, paramlistsize * sizeof(*params));
param_parent = realloc(param_parent, param_parent = realloc(param_parent,
paramlistsize * sizeof(*param_parent)); paramlistsize * sizeof(*param_parent));
if (params == NULL || param_parent == NULL) if (params == NULL || param_parent == NULL)
err(1, "realloc"); xo_err(1, "realloc");
} }
/* Look up the parameter. */ /* Look up the parameter. */
param_parent[nparams] = -1; param_parent[nparams] = -1;
param = params + nparams++; param = params + nparams++;
if (source != NULL) { if (source != NULL) {
*param = *source; *param = *source;
param->jp_flags |= flags; param->jp_flags |= flags;
return param - params; return param - params;
} }
if (jailparam_init(param, name) < 0 || if (jailparam_init(param, name) < 0 ||
(value != NULL ? jailparam_import_raw(param, value, valuelen) (value != NULL ? jailparam_import_raw(param, value, valuelen)
: jailparam_import(param, value)) < 0) { : jailparam_import(param, value)) < 0) {
if (flags & JP_OPT) { if (flags & JP_OPT) {
nparams--; nparams--;
return (-1); return (-1);
} }
errx(1, "%s", jail_errmsg); xo_errx(1, "%s", jail_errmsg);
} }
param->jp_flags = flags; param->jp_flags = flags;
return param - params; return param - params;
} }
static int static int
sort_param(const void *a, const void *b) sort_param(const void *a, const void *b)
{ {
Show All 14 Lines
static char * static char *
noname(const char *name) noname(const char *name)
{ {
char *nname, *p; char *nname, *p;
nname = malloc(strlen(name) + 3); nname = malloc(strlen(name) + 3);
if (nname == NULL) if (nname == NULL)
err(1, "malloc"); xo_err(1, "malloc");
p = strrchr(name, '.'); p = strrchr(name, '.');
if (p != NULL) if (p != NULL)
sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1); sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1);
else else
sprintf(nname, "no%s", name); sprintf(nname, "no%s", name);
return nname; return nname;
} }
static char * static char *
nononame(const char *name) nononame(const char *name)
{ {
char *nname, *p; char *nname, *p;
p = strrchr(name, '.'); p = strrchr(name, '.');
if (strncmp(p ? p + 1 : name, "no", 2)) if (strncmp(p ? p + 1 : name, "no", 2))
return NULL; return NULL;
nname = malloc(strlen(name) - 1); nname = malloc(strlen(name) - 1);
if (nname == NULL) if (nname == NULL)
err(1, "malloc"); xo_err(1, "malloc");
if (p != NULL) if (p != NULL)
sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3); sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3);
else else
strcpy(nname, name + 2); strcpy(nname, name + 2);
return nname; return nname;
} }
static int static int
print_jail(int pflags, int jflags) print_jail(int pflags, int jflags)
{ {
char *nname; char *nname, *xo_nname;
char **param_values; char **param_values;
int i, ai, jid, count, n, spc; int i, ai, jid, count, n, spc;
char ipbuf[INET6_ADDRSTRLEN]; char ipbuf[INET6_ADDRSTRLEN];
jid = jailparam_get(params, nparams, jflags); jid = jailparam_get(params, nparams, jflags);
if (jid < 0) if (jid < 0)
return jid; return jid;
xo_open_instance("jail");
if (pflags & PRINT_VERBOSE) { if (pflags & PRINT_VERBOSE) {
printf("%6d %-29.29s %.74s\n" xo_emit("{:jid/%6d}{P: }{:hostname/%-29.29s/%s}{P: }"
"%6s %-29.29s %.74s\n" "{:path/%.74s/%s}\n",
"%6s %-6d\n",
*(int *)params[0].jp_value, *(int *)params[0].jp_value,
(char *)params[1].jp_value, (char *)params[1].jp_value,
(char *)params[2].jp_value, (char *)params[2].jp_value);
"", xo_emit("{P: }{:name/%-29.29s/%s}{P: }{:state/%.74s}\n",
(char *)params[3].jp_value, (char *)params[3].jp_value,
*(int *)params[4].jp_value ? "DYING" : "ACTIVE", *(int *)params[4].jp_value ? "DYING" : "ACTIVE");
"", xo_emit("{P: }{:cpusetid/%d}\n", *(int *)params[5].jp_value);
*(int *)params[5].jp_value);
n = 6; n = 6;
#ifdef INET #ifdef INET
if (ip4_ok && !strcmp(params[n].jp_name, "ip4.addr")) { if (ip4_ok && !strcmp(params[n].jp_name, "ip4.addr")) {
count = params[n].jp_valuelen / sizeof(struct in_addr); count = params[n].jp_valuelen / sizeof(struct in_addr);
for (ai = 0; ai < count; ai++) for (ai = 0; ai < count; ai++)
if (inet_ntop(AF_INET, if (inet_ntop(AF_INET,
&((struct in_addr *)params[n].jp_value)[ai], &((struct in_addr *)params[n].jp_value)[ai],
ipbuf, sizeof(ipbuf)) == NULL) ipbuf, sizeof(ipbuf)) == NULL)
err(1, "inet_ntop"); xo_err(1, "inet_ntop");
else else {
printf("%6s %-15.15s\n", "", ipbuf); xo_emit("{P: }{l:ipv4_addrs}{P:\n}", ipbuf);
}
n++; n++;
} }
#endif #endif
#ifdef INET6 #ifdef INET6
if (ip6_ok && !strcmp(params[n].jp_name, "ip6.addr")) { if (ip6_ok && !strcmp(params[n].jp_name, "ip6.addr")) {
count = params[n].jp_valuelen / sizeof(struct in6_addr); count = params[n].jp_valuelen / sizeof(struct in6_addr);
for (ai = 0; ai < count; ai++) for (ai = 0; ai < count; ai++)
if (inet_ntop(AF_INET6, if (inet_ntop(AF_INET6,
&((struct in6_addr *) &((struct in6_addr *)
params[n].jp_value)[ai], params[n].jp_value)[ai],
ipbuf, sizeof(ipbuf)) == NULL) ipbuf, sizeof(ipbuf)) == NULL)
err(1, "inet_ntop"); xo_err(1, "inet_ntop");
else else
printf("%6s %s\n", "", ipbuf); xo_emit("{P: }{l:ipv6_addrs}{P:\n}", ipbuf);
n++; n++;
} }
#endif #endif
} else if (pflags & PRINT_DEFAULT) { } else if (pflags & PRINT_DEFAULT) {
if (pflags & PRINT_JAIL_NAME) if (pflags & PRINT_JAIL_NAME)
printf(" %-15s ", (char *)params[0].jp_value); xo_emit("{P: }{:name/%-15s/%s}{P: }",
(char *)params[0].jp_value);
else else
printf("%6d ", *(int *)params[0].jp_value); xo_emit("{:jid/%6d}{P: }", *(int *)params[0].jp_value);
printf("%-15.15s %-29.29s %.74s\n", xo_emit("{:ipv4/%-15.15s/%s}{P: }{:hostname/%-29.29s/%s}{P: }{:path/%.74s/%s}\n",
#ifdef INET #ifdef INET
(!ip4_ok || params[1].jp_valuelen == 0) ? "-" (!ip4_ok || params[1].jp_valuelen == 0) ? ""
: inet_ntoa(*(struct in_addr *)params[1].jp_value), : inet_ntoa(*(struct in_addr *)params[1].jp_value),
(char *)params[2-!ip4_ok].jp_value, (char *)params[2-!ip4_ok].jp_value,
(char *)params[3-!ip4_ok].jp_value); (char *)params[3-!ip4_ok].jp_value);
#else #else
"-", "-",
(char *)params[1].jp_value, (char *)params[1].jp_value,
(char *)params[2].jp_value); (char *)params[2].jp_value);
#endif #endif
} else { } else {
param_values = alloca(nparams * sizeof(*param_values)); param_values = alloca(nparams * sizeof(*param_values));
for (i = 0; i < nparams; i++) { for (i = 0; i < nparams; i++) {
if (!(params[i].jp_flags & JP_USER)) if (!(params[i].jp_flags & JP_USER))
continue; continue;
param_values[i] = jailparam_export(params + i); param_values[i] = jailparam_export(params + i);
if (param_values[i] == NULL) if (param_values[i] == NULL)
errx(1, "%s", jail_errmsg); xo_errx(1, "%s", jail_errmsg);
} }
for (i = spc = 0; i < nparams; i++) { for (i = spc = 0; i < nparams; i++) {
if (!(params[i].jp_flags & JP_USER)) if (!(params[i].jp_flags & JP_USER))
continue; continue;
if ((pflags & PRINT_SKIP) && if ((pflags & PRINT_SKIP) &&
((!(params[i].jp_ctltype & ((!(params[i].jp_ctltype &
(CTLFLAG_WR | CTLFLAG_TUN))) || (CTLFLAG_WR | CTLFLAG_TUN))) ||
(param_parent[i] >= 0 && (param_parent[i] >= 0 &&
*(int *)params[param_parent[i]].jp_value != *(int *)params[param_parent[i]].jp_value !=
JAIL_SYS_NEW))) JAIL_SYS_NEW)))
continue; continue;
if (spc) if (spc)
putchar(' '); xo_emit("{P: }");
else else
spc = 1; spc = 1;
if (pflags & PRINT_NAMEVAL) { if (pflags & PRINT_NAMEVAL) {
/* /*
* Generally "name=value", but for booleans * Generally "name=value", but for booleans
* either "name" or "noname". * either "name" or "noname".
*/ */
if (params[i].jp_flags & if (params[i].jp_flags &
(JP_BOOL | JP_NOBOOL)) { (JP_BOOL | JP_NOBOOL)) {
if (*(int *)params[i].jp_value) if (*(int *)params[i].jp_value) {
printf("%s", params[i].jp_name); asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name);
xo_emit(xo_nname);
xo_emit("{d:/%s}", params[i].jp_name);
}
else { else {
nname = (params[i].jp_flags & nname = (params[i].jp_flags &
JP_NOBOOL) ? JP_NOBOOL) ?
nononame(params[i].jp_name) nononame(params[i].jp_name)
: noname(params[i].jp_name); : noname(params[i].jp_name);
printf("%s", nname); if (params[i].jp_flags & JP_NOBOOL) {
asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name);
xo_emit(xo_nname);
} else {
asprintf(&xo_nname, "{en:%s/false}", params[i].jp_name);
xo_emit(xo_nname);
}
xo_emit("{d:/%s}", nname);
free(nname); free(nname);
} }
free(xo_nname);
continue; continue;
} }
printf("%s=", params[i].jp_name); xo_emit("{d:%s}=", params[i].jp_name);
} }
if (params[i].jp_valuelen == 0) { if (params[i].jp_valuelen == 0) {
if (pflags & PRINT_QUOTED) if (pflags & PRINT_QUOTED)
printf("\"\""); xo_emit("{P:\"\"}");
else if (!(pflags & PRINT_NAMEVAL)) else if (!(pflags & PRINT_NAMEVAL))
putchar('-'); xo_emit("{P:-}");
} else } else {
quoted_print(param_values[i]); quoted_print(pflags, params[i].jp_name, param_values[i]);
} }
putchar('\n'); }
xo_emit("{P:\n}");
for (i = 0; i < nparams; i++) for (i = 0; i < nparams; i++)
if (params[i].jp_flags & JP_USER) if (params[i].jp_flags & JP_USER)
free(param_values[i]); free(param_values[i]);
} }
xo_close_instance("jail");
return (jid); return (jid);
} }
static void static void
quoted_print(char *str) quoted_print(int pflags, char *name, char *value)
{ {
int c, qc; int qc;
char *p = str; char *p = value;
char *param_name_value;
/* An empty string needs quoting. */ /* An empty string needs quoting. */
if (!*p) { if (!*p) {
fputs("\"\"", stdout); asprintf(&param_name_value, "{k:%s}{d:%s/\"\"}", name, name);
xo_emit(param_name_value);
free(param_name_value);
return; return;
} }
asprintf(&param_name_value, "{:%s/%%s}", name);
/* /*
* The value will be surrounded by quotes if it contains spaces * The value will be surrounded by quotes if it contains spaces
* or quotes. * or quotes.
*/ */
qc = strchr(p, '\'') ? '"' qc = strchr(p, '\'') ? '"'
: strchr(p, '"') ? '\'' : strchr(p, '"') ? '\''
: strchr(p, ' ') || strchr(p, '\t') ? '"' : strchr(p, ' ') || strchr(p, '\t') ? '"'
: 0; : 0;
if (qc)
putchar(qc); if (qc && pflags & PRINT_QUOTED)
while ((c = *p++)) { xo_emit("{P:/%c}", qc);
if (c == '\\' || c == qc)
putchar('\\'); xo_emit(param_name_value, value);
putchar(c);
} free(param_name_value);
if (qc)
putchar(qc); if (qc && pflags & PRINT_QUOTED)
xo_emit("{P:/%c}", qc);
} }