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Move the actual create/remove (IP__OP) handling into run_command,

Browse Source 
and the cost of an ugly single-use global variable.
This commit is contained in:
Jamie Gritton 2011-06-18 15:23:08 +00:00
parent d8352076b1
commit 2b00f7ba65
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/jailconf/; revision=223263
3 changed files with 40 additions and 44 deletions
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39
usr.sbin/jail/command.c
View File

@ -94,7 +94,7 @@ next_command(struct cfjail *j)
rval = 0;
create_failed = (j->flags & (JF_STOP | JF_FAILED)) == JF_FAILED;
for (; (comparam = *j->comparam) && comparam != IP__OP;
for (; (comparam = *j->comparam);
j->comparam += create_failed ? -1 : 1) {
if (j->comstring == NULL) {
switch (comparam) {
@ -102,6 +102,7 @@ next_command(struct cfjail *j)
if (!bool_param(j->intparams[IP_MOUNT_DEVFS]))
continue;
/* FALLTHROUGH */
case IP__OP:
case IP_STOP_TIMEOUT:
j->comstring = &dummystring;
break;
@ -256,19 +257,43 @@ run_command(struct cfjail *j)
static char *cleanenv;
/* Perform some operations that aren't actually commands */
comparam = *j->comparam;
down = j->flags & (JF_STOP | JF_FAILED);
switch (comparam) {
case IP_STOP_TIMEOUT:
return term_procs(j);
case IP__OP:
if (down) {
if (jail_remove(j->jid) == 0 && verbose >= 0 &&
(verbose > 0 || (j->flags & JF_STOP
? note_remove : j->name != NULL)))
jail_note(j, "removed\n");
j->jid = -1;
if (j->flags & JF_STOP)
dep_done(j, DF_LIGHT);
else
j->flags &= ~JF_PERSIST;
} else {
if (create_jail(j) < 0) {
failed(j);
return -1;
}
if (verbose >= 0 && (j->name || verbose > 0))
jail_note(j, "created\n");
dep_done(j, DF_LIGHT);
}
requeue(j, &ready);
return 1;
}
/*
* Collect exec arguments. Internal commands for network and
* mounting build their own argument lists.
*/
comparam = *j->comparam;
comstring = j->comstring;
bg = 0;
down = j->flags & (JF_STOP | JF_FAILED);
switch (comparam) {
case IP_STOP_TIMEOUT:
/* This isn't really a command */
return term_procs(j);
case IP__IP4_IFADDR:
argv = alloca(8 * sizeof(char *));
*(const char **)&argv[0] = _PATH_IFCONFIG;

43
usr.sbin/jail/jail.c
View File

@ -55,9 +55,9 @@ struct permspec {
};
const char *cfname;
int note_remove;
int verbose;
static int create_jail(struct cfjail *j);
static void clear_persist(struct cfjail *j);
static int update_jail(struct cfjail *j);
static int rdtun_params(struct cfjail *j, int dofail);
@ -271,6 +271,7 @@ main(int argc, char **argv)
if ((docf = !Rflag &&
(!strcmp(cfname, "-") || stat(cfname, &st) == 0)))
load_config();
note_remove = docf || argc > 1 || wild_jail_name(argv[0]);
} else if (argc > 1 || (argc == 1 && strchr(argv[0], '='))) {
/* Single jail specified on the command line */
if (Rflag)
@ -388,25 +389,7 @@ main(int argc, char **argv)
continue;
if (j->jid > 0)
goto jail_create_done;
j->comparam == startcommands + 1;
} else if (*j->comparam == IP__OP) {
if (j->flags & JF_FAILED) {
if (jail_remove(j->jid) == 0 &&
verbose >= 0 &&
(j->name || verbose > 0))
jail_note(j, "removed\n");
j->jid = -1;
j->flags &= ~JF_PERSIST;
j->comparam--;
} else if (create_jail(j) < 0) {
j->comparam--;
} else {
if (verbose >= 0 &&
(j->name || verbose > 0))
jail_note(j, "created\n");
dep_done(j, DF_LIGHT);
j->comparam++;
}
j->comparam = startcommands + 1;
}
if (next_command(j))
continue;
@ -449,19 +432,9 @@ main(int argc, char **argv)
j->name);
goto jail_remove_done;
}
j->comparam == stopcommands + 1;
} else if ((j->flags & JF_FAILED) && j->jid > 0) {
j->comparam = stopcommands + 1;
} else if ((j->flags & JF_FAILED) && j->jid > 0)
goto jail_remove_done;
} else if (*j->comparam == IP__OP) {
if (jail_remove(j->jid) == 0 &&
verbose >= 0 &&
(docf || argc > 1 ||
wild_jail_name(argv[0]) || verbose > 0))
jail_note(j, "removed\n");
j->jid = -1;
dep_done(j, DF_LIGHT);
j->comparam++;
}
if (next_command(j))
continue;
jail_remove_done:
@ -578,7 +551,7 @@ jail_warnx(const struct cfjail *j, const char *fmt, ...)
/*
* Create a new jail.
*/
static int
int
create_jail(struct cfjail *j)
{
struct iovec jiov[4];
@ -595,17 +568,14 @@ create_jail(struct cfjail *j)
if (path[0] != '/') {
jail_warnx(j, "path %s: not an absolute pathname",
path);
failed(j);
return -1;
}
if (stat(path, &st) < 0) {
jail_warnx(j, "path %s: %s", path, strerror(errno));
failed(j);
return -1;
}
if (!S_ISDIR(st.st_mode)) {
jail_warnx(j, "path %s: %s", path, strerror(ENOTDIR));
failed(j);
return -1;
}
}
@ -621,7 +591,6 @@ create_jail(struct cfjail *j)
alloca((j->njp + dopersist) * sizeof(struct jailparam));
if (dopersist && jailparam_init(sjp++, "persist") < 0) {
jail_warnx(j, "%s", jail_errmsg);
failed(j);
return -1;
}
for (jp = j->jp; jp < j->jp + j->njp; jp++)

2
usr.sbin/jail/jailp.h
View File

@ -182,6 +182,7 @@ struct cfdepend {
extern void *emalloc(size_t);
extern void *erealloc(void *, size_t);
extern char *estrdup(const char *);
extern int create_jail(struct cfjail *j);
extern void failed(struct cfjail *j);
extern void jail_note(const struct cfjail *j, const char *fmt, ...);
extern void jail_warnx(const struct cfjail *j, const char *fmt, ...);
@ -219,5 +220,6 @@ extern struct cfjails cfjails;
extern struct cfjails ready;
extern struct cfjails depend;
extern const char *cfname;
extern int note_remove;
extern int paralimit;
extern int verbose;