Parameters verify should be performed as soon as possible to avoid unuseless work.
Signed-off-by: Wu Bo <[email protected]> Signed-off-by: Wenchao Hao <[email protected]> --- usr/iscsiadm.c | 85 ++++++++++++++++++++------------------------------ 1 file changed, 34 insertions(+), 51 deletions(-) diff --git a/usr/iscsiadm.c b/usr/iscsiadm.c index 311978e..afc06a2 100644 --- a/usr/iscsiadm.c +++ b/usr/iscsiadm.c @@ -101,6 +101,22 @@ enum _print_node_tree_mode { _PRINT_MODE_NODE, }; +struct verify_mode_t { + char *mode; + char *allowed; + int skip_m; +}; + +static struct verify_mode_t mode_paras[] = { + [MODE_DISCOVERY] = {"discovery", "DSIPdmntplov", 0}, + [MODE_DISCOVERYDB] = {"discovery", "DSIPdmntplov", 0}, + [MODE_NODE] = {"node", "RsPIdmlSonvupTULW", 0}, + [MODE_SESSION] = {"session", "PiRdrmusonuSv", 1}, + [MODE_HOST] = {"host", "CHdmPotnvxA", 0}, + [MODE_IFACE] = {"iface", "HIdnvmPoCabci", 0}, + [MODE_FW] = {"fw", "dml", 0}, +}; + static struct option const long_options[] = { {"mode", required_argument, NULL, 'm'}, @@ -1331,10 +1347,19 @@ sw_discovery: static int -verify_mode_params(int argc, char **argv, char *allowed, int skip_m) +verify_mode_params(int argc, char **argv, enum iscsiadm_mode mode) { int ch, longindex; int ret = 0; + char *allowed; + int skip_m; + int tmp = optind; + + if (mode > MODE_FW) + return 0; + + allowed = mode_paras[mode].allowed; + skip_m = mode_paras[mode].skip_m; optind = 0; @@ -1343,10 +1368,13 @@ verify_mode_params(int argc, char **argv, char *allowed, int skip_m) if (!strchr(allowed, ch)) { if (ch == 'm' && skip_m) continue; - ret = ch; + log_error("%s mode: option '-%c' is not " + "allowed/supported", + mode_paras[mode].mode, ch); break; } } + optind = tmp; return ret; } @@ -3677,6 +3705,10 @@ main(int argc, char **argv) break; case 'm': mode = str_to_mode(optarg); + if (verify_mode_params(argc, argv, mode)) { + rc = ISCSI_ERR_INVAL; + goto free_ifaces; + } break; case 'C': sub_mode = str_to_submode(optarg); @@ -3767,13 +3799,6 @@ main(int argc, char **argv) usage(ISCSI_ERR_INVAL); if (mode == MODE_FW) { - if ((rc = verify_mode_params(argc, argv, "dml", 0))) { - log_error("fw mode: option '-%c' is not " - "allowed/supported", rc); - rc = ISCSI_ERR_INVAL; - goto free_ifaces; - } - rc = exec_fw_op(NULL, NULL, info_level, do_login, op); goto free_ifaces; } @@ -3787,12 +3812,6 @@ main(int argc, char **argv) switch (mode) { case MODE_HOST: - if ((rc = verify_mode_params(argc, argv, "CHdmPotnvxA", 0))) { - log_error("host mode: option '-%c' is not " - "allowed/supported", rc); - rc = ISCSI_ERR_INVAL; - goto out; - } if (sub_mode != -1) { switch (sub_mode) { case MODE_CHAP: @@ -3858,13 +3877,6 @@ main(int argc, char **argv) case MODE_IFACE: iscsi_default_iface_setup(ctx); - if ((rc = verify_mode_params(argc, argv, "HIdnvmPoCabci", 0))) { - log_error("iface mode: option '-%c' is not " - "allowed/supported", rc); - rc = ISCSI_ERR_INVAL; - goto out; - } - if (!list_empty(&ifaces)) { iface = list_entry(ifaces.next, struct iface_rec, list); @@ -3883,38 +3895,16 @@ main(int argc, char **argv) break; case MODE_DISCOVERYDB: - if ((rc = verify_mode_params(argc, argv, "DSIPdmntplov", 0))) { - log_error("discovery mode: option '-%c' is not " - "allowed/supported", rc); - rc = ISCSI_ERR_INVAL; - goto out; - } - rc = exec_disc2_op(type, ip, port, &ifaces, info_level, do_login, do_discover, op, ¶ms, do_show); break; case MODE_DISCOVERY: - if ((rc = verify_mode_params(argc, argv, "DSIPdmntplov", 0))) { - log_error("discovery mode: option '-%c' is not " - "allowed/supported", rc); - rc = ISCSI_ERR_INVAL; - goto out; - } - rc = exec_disc_op(type, ip, port, &ifaces, info_level, do_login, do_discover, op, ¶ms, do_show); break; case MODE_NODE: - if ((rc = verify_mode_params(argc, argv, "RsPIdmlSonvupTULW", - 0))) { - log_error("node mode: option '-%c' is not " - "allowed/supported", rc); - rc = ISCSI_ERR_INVAL; - goto out; - } - if (do_login_all) { rc = login_by_startup(group_session_mgmt_mode, wait); goto out; @@ -3950,13 +3940,6 @@ main(int argc, char **argv) ¶ms); break; case MODE_SESSION: - if ((rc = verify_mode_params(argc, argv, - "PiRdrmusonuSv", 1))) { - log_error("session mode: option '-%c' is not " - "allowed or supported", rc); - rc = ISCSI_ERR_INVAL; - goto out; - } if (sid >= 0) { char session[64]; struct session_info *info; -- 2.27.0 -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/open-iscsi/20201120062052.51838-1-haowenchao%40huawei.com.
