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virt-login-shell: convert to typesafe virConf accessors

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Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-07-08 13:52:42 +01:00
parent b8b31acdf6
commit 740e4d7052
1 changed files with 37 additions and 102 deletions
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139
tools/virt-login-shell.c
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@ -50,46 +50,38 @@ static int virLoginShellAllowedUser(virConfPtr conf,
gid_t *groups,
size_t ngroups)
{
virConfValuePtr p;
int ret = -1;
char *ptr = NULL;
size_t i;
char *gname = NULL;
char **users = NULL, **entries;
p = virConfGetValue(conf, "allowed_users");
if (p && p->type == VIR_CONF_LIST) {
virConfValuePtr pp;
if (virConfGetValueStringList(conf, "allowed_users", false, &users) < 0)
goto cleanup;
/* Calc length and check items */
for (pp = p->list; pp; pp = pp->next) {
if (pp->type != VIR_CONF_STRING) {
virReportSystemError(EINVAL, "%s",
_("allowed_users must be a list of strings"));
goto cleanup;
} else {
/*
If string begins with a % this indicates a linux group.
Check to see if the user is in the Linux Group.
*/
if (pp->str[0] == '%') {
ptr = &pp->str[1];
if (!*ptr)
continue;
for (i = 0; i < ngroups; i++) {
if (!(gname = virGetGroupName(groups[i])))
continue;
if (fnmatch(ptr, gname, 0) == 0) {
ret = 0;
goto cleanup;
}
VIR_FREE(gname);
}
for (entries = users; *entries; entries++) {
char *entry = *entries;
/*
If string begins with a % this indicates a linux group.
Check to see if the user is in the Linux Group.
*/
if (entry[0] == '%') {
entry++;
if (!*entry)
continue;
for (i = 0; i < ngroups; i++) {
if (!(gname = virGetGroupName(groups[i])))
continue;
}
if (fnmatch(pp->str, name, 0) == 0) {
if (fnmatch(entry, gname, 0) == 0) {
ret = 0;
goto cleanup;
}
VIR_FREE(gname);
}
} else {
if (fnmatch(entry, name, 0) == 0) {
ret = 0;
goto cleanup;
}
}
}
@ -98,87 +90,30 @@ static int virLoginShellAllowedUser(virConfPtr conf,
name, conf_file);
cleanup:
VIR_FREE(gname);
virStringFreeList(users);
return ret;
}
static int virLoginShellGetAutoShell(virConfPtr conf,
bool *autoshell)
{
virConfValuePtr p;
p = virConfGetValue(conf, "auto_shell");
if (!p) {
*autoshell = false;
} else if (p->type == VIR_CONF_LONG ||
p->type == VIR_CONF_ULONG) {
*autoshell = (p->l != 0);
} else {
virReportSystemError(EINVAL, "%s",
_("auto_shell must be a boolean value"));
return -1;
}
return 0;
}
static int virLoginShellGetShellArgv(virConfPtr conf,
char ***retshargv,
size_t *retshargvlen)
char ***shargv,
size_t *shargvlen)
{
size_t i;
size_t len;
char **shargv = NULL;
virConfValuePtr p, pp;
if (virConfGetValueStringList(conf, "shell", true, shargv) < 0)
return -1;
p = virConfGetValue(conf, "shell");
if (!p) {
len = 1; /* /bin/sh */
} else if (p->type == VIR_CONF_LIST) {
/* Calc length and check items */
for (len = 0, pp = p->list; pp; len++, pp = pp->next) {
if (pp->type != VIR_CONF_STRING) {
virReportSystemError(EINVAL, "%s",
_("shell must be a list of strings"));
goto error;
}
if (!shargv) {
if (VIR_ALLOC_N(*shargv, 2) < 0)
return -1;
if (VIR_STRDUP((*shargv)[0], "/bin/sh") < 0) {
VIR_FREE(*shargv);
return -1;
}
} else if (p->type == VIR_CONF_STRING) {
len = 1; /* /path/to/shell */
*shargvlen = 1;
} else {
virReportSystemError(EINVAL, "%s",
_("shell must be a list of strings"));
goto error;
*shargvlen = virStringListLength((const char *const *)shargv);
}
len++; /* NULL terminator */
if (VIR_ALLOC_N(shargv, len) < 0)
goto error;
i = 0;
if (!p) {
if (VIR_STRDUP(shargv[i++], "/bin/sh") < 0)
goto error;
} else if (p->type == VIR_CONF_LIST) {
for (pp = p->list; pp; pp = pp->next) {
if (VIR_STRDUP(shargv[i++], pp->str) < 0)
goto error;
}
} else if (p->type == VIR_CONF_STRING) {
if (VIR_STRDUP(shargv[i++], p->str) < 0)
goto error;
}
shargv[i] = NULL;
*retshargvlen = i;
*retshargv = shargv;
return 0;
error:
*retshargv = NULL;
*retshargvlen = 0;
virStringFreeList(shargv);
return -1;
}
static char *progname;
@ -313,7 +248,7 @@ main(int argc, char **argv)
if (virLoginShellGetShellArgv(conf, &shargv, &shargvlen) < 0)
goto cleanup;
if (virLoginShellGetAutoShell(conf, &autoshell) < 0)
if (virConfGetValueBool(conf, "auto_shell", &autoshell) < 0)
goto cleanup;
conn = virConnectOpen("lxc:///");