[stgt] [PATCH] check for valid parameters when passing tgtadm commands
Doron Shoham
dorons at Voltaire.COM
Wed Oct 15 16:17:13 CEST 2008
> Yeah, we do in most generally though there are some exceptions. Leave
> parts in which you think that breaking 80 character rule is better.
check for valid parameters when passing tgtadm commands
Signed-off-by: Doron Shoham <dorons at voltaire.com>
---
usr/tgtadm.c | 176 +++++++++++++++++++++++++++++++++++++++++++++++++--------
1 files changed, 151 insertions(+), 25 deletions(-)
diff --git a/usr/tgtadm.c b/usr/tgtadm.c
index 9e90b40..2169c86 100644
--- a/usr/tgtadm.c
+++ b/usr/tgtadm.c
@@ -356,9 +356,27 @@ static int str_to_op(char *str)
}
}
-int main(int argc, char **argv)
+static int verify_mode_params(int argc, char **argv, char *allowed)
{
int ch, longindex;
+ int ret = 0;
+
+ optind = 0;
+
+ while ((ch = getopt_long(argc, argv, short_options,
+ long_options, &longindex)) >= 0) {
+ if (!strchr(allowed, ch)) {
+ ret = ch;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+int main(int argc, char **argv)
+{
+ int ch, longindex, rc;
int op, total, tid, rest, mode, dev_type, ac_dir;
uint32_t cid, hostno;
uint64_t sid, lun;
@@ -370,6 +388,7 @@ int main(int argc, char **argv)
op = tid = mode = -1;
total = cid = hostno = sid = lun = 0;
+ rc = 0;
dev_type = TYPE_DISK;
ac_dir = ACCOUNT_TYPE_INCOMING;
rest = BUFSIZE;
@@ -384,6 +403,7 @@ int main(int argc, char **argv)
optind = 1;
while ((ch = getopt_long(argc, argv, short_options,
long_options, &longindex)) >= 0) {
+ errno = 0;
switch (ch) {
case 'L':
strncpy(req->lld, optarg, sizeof(req->lld));
@@ -396,6 +416,10 @@ int main(int argc, char **argv)
break;
case 't':
tid = strtol(optarg, NULL, 10);
+ if (errno == EINVAL) {
+ eprintf("invalid tid '%s'\n", optarg);
+ exit(EINVAL);
+ }
break;
case 's':
sid = strtoull(optarg, NULL, 10);
@@ -457,10 +481,7 @@ int main(int argc, char **argv)
}
if (optind < argc) {
- eprintf("unrecognized options: ");
- while (optind < argc)
- eprintf("%s", argv[optind++]);
- eprintf("\n");
+ eprintf("unrecognized option '%s'\n", argv[optind]);
usage(1);
}
@@ -484,35 +505,63 @@ int main(int argc, char **argv)
/* exit(EINVAL); */
}
- if ((name || value) && op != OP_UPDATE) {
- eprintf("only 'update' operation takes"
- " 'name' and 'value' options\n");
- exit(EINVAL);
- }
-
- if ((!name && value) || (name && !value)) {
- eprintf("'name' and 'value' options are necessary\n");
- exit(EINVAL);
- }
-
if (mode == MODE_TARGET) {
+ if ((tid <= 0 && (op != OP_SHOW))) {
+ eprintf("'tid' option is necessary\n");
+ exit(EINVAL);
+ }
switch (op) {
case OP_NEW:
+ rc = verify_mode_params(argc, argv, "LmotT");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
+ if (!targetname) {
+ eprintf("creating a new target requires name\n");
+ exit(EINVAL);
+ }
+ break;
case OP_DELETE:
+ case OP_SHOW:
+ rc = verify_mode_params(argc, argv, "Lmot");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
+ break;
case OP_BIND:
case OP_UNBIND:
+ rc = verify_mode_params(argc, argv, "LmotI");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
+ if (!address) {
+ eprintf("%s operation requires initiator-address\n"
+ , op == OP_BIND ? "bind" : "unbind");
+ exit(EINVAL);
+ }
+ break;
case OP_UPDATE:
- if (op == OP_NEW && !targetname) {
- eprintf("creating a new target needs the name\n");
+ rc = verify_mode_params(argc, argv, "Lmotnv");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
exit(EINVAL);
}
-
- if (tid < 0) {
- eprintf("'tid' option is necessary\n");
+ if ((!name || !value)) {
+ eprintf("update operation requires 'name'"
+ " and 'value' options\n");
exit(EINVAL);
}
break;
default:
+ eprintf("option %d not supported in target mode\n", op);
+ exit(EINVAL);
break;
}
}
@@ -520,29 +569,106 @@ int main(int argc, char **argv)
if (mode == MODE_ACCOUNT) {
switch (op) {
case OP_NEW:
+ rc = verify_mode_params(argc, argv, "Lmoup");
+ if (rc) {
+ eprintf("logicalunit mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
if (!user || !password) {
eprintf("'user' and 'password' options is necessary\n");
exit(EINVAL);
}
break;
case OP_SHOW:
+ rc = verify_mode_params(argc, argv, "Lmo");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
break;
case OP_DELETE:
+ rc = verify_mode_params(argc, argv, "Lmou");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
+ break;
case OP_BIND:
+ rc = verify_mode_params(argc, argv, "LmotuO");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
+ if (!user) {
+ eprintf("'user' option is necessary\n");
+ exit(EINVAL);
+ }
+ if (tid <= 0) {
+ eprintf("'tid' option is necessary\n");
+ exit(EINVAL);
+ }
+ break;
case OP_UNBIND:
+ rc = verify_mode_params(argc, argv, "Lmou");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
if (!user) {
eprintf("'user' option is necessary\n");
exit(EINVAL);
}
-
- if ((op == OP_BIND || op == OP_UNBIND) && tid < 0) {
+ if (tid <= 0) {
eprintf("'tid' option is necessary\n");
exit(EINVAL);
}
break;
default:
- eprintf("the update operation can't"
- " handle accounts\n");
+ eprintf("option %d not supported in account mode\n", op);
+ exit(EINVAL);
+ break;
+ }
+ }
+
+ if (mode == MODE_DEVICE) {
+ if (tid <= 0) {
+ eprintf("'tid' option is necessary\n");
+ exit(EINVAL);
+ }
+ if (!lun) {
+ eprintf("'lun' option is necessary\n");
+ exit(EINVAL);
+ }
+ switch (op) {
+ case OP_NEW:
+ rc = verify_mode_params(argc, argv, "Lmotlb");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
+ if (!path) {
+ eprintf("'backing-store' option "
+ "is necessary\n");
+ exit(EINVAL);
+ }
+ break;
+ case OP_DELETE:
+ rc = verify_mode_params(argc, argv, "Lmotl");
+ if (rc) {
+ eprintf("target mode: option '-%c' is not "
+ "allowed/supported\n", rc);
+ exit(EINVAL);
+ }
+ break;
+ default:
+ eprintf("option %d not supported in "
+ "logicalunit mode\n", op);
exit(EINVAL);
break;
}
--
1.5.3.8
--
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