From 29bccc2ed18eedc40e83d2f0d35327037a322384 Mon Sep 17 00:00:00 2001 From: Avra Sengupta Date: Wed, 19 Feb 2014 16:30:11 +0530 Subject: gluster: GlusterFS Volume Snapshot Feature This is the initial patch for the Snapshot feature. Current patch includes following features: * Snapshot create * Snapshot delete * Snapshot restore * Snapshot list * Snapshot info * Snapshot status * Snapshot config Change-Id: I2f46920c0d61c515f6a60e0f8b46fff886d9f6a9 BUG: 1061685 Signed-off-by: shishir gowda Signed-off-by: Sachin Pandit Signed-off-by: Vijaikumar M Signed-off-by: Raghavendra Bhat Signed-off-by: Rajesh Joseph Signed-off-by: Joseph Fernandes Signed-off-by: Avra Sengupta Reviewed-on: http://review.gluster.org/7128 Tested-by: Gluster Build System Reviewed-by: Vijay Bellur --- cli/src/cli-cmd-parser.c | 938 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 936 insertions(+), 2 deletions(-) (limited to 'cli/src/cli-cmd-parser.c') diff --git a/cli/src/cli-cmd-parser.c b/cli/src/cli-cmd-parser.c index afa161104..9714449c1 100644 --- a/cli/src/cli-cmd-parser.c +++ b/cli/src/cli-cmd-parser.c @@ -1,5 +1,5 @@ /* - Copyright (c) 2010-2012 Red Hat, Inc. + Copyright (c) 2010-2013 Red Hat, Inc. This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser @@ -26,6 +26,38 @@ #include "protocol-common.h" #include "cli1-xdr.h" +#define MAX_SNAP_DESCRIPTION_LEN 1024 + +struct snap_config_opt_vals_ snap_confopt_vals[] = { + {.op_name = "snap-max-hard-limit", + .question = "Changing snapshot-max-hard-limit " + "will lead to deletion of snapshots " + "if they exceed the new limit.\n" + "Do you want to continue?" + }, + {.op_name = "snap-max-soft-limit", + .question = "Changing snapshot-max-soft-limit " + "will lead to deletion of snapshots " + "if they exceed the new limit.\n" + "Do you want to continue?" + }, + {.op_name = "both", + .question = "Changing snapshot-max-hard-limit & " + "snapshot-max-soft-limit will lead to " + "deletion of snapshots if they exceed " + "the new limit.\nDo you want to continue?" + }, + {.op_name = NULL, + } +}; + +enum cli_snap_config_set_types { + GF_SNAP_CONFIG_SET_HARD = 0, + GF_SNAP_CONFIG_SET_SOFT = 1, + GF_SNAP_CONFIG_SET_BOTH = 2, +}; +typedef enum cli_snap_config_set_types cli_snap_config_set_types; + static const char * id_sel (void *wcon) { @@ -163,7 +195,9 @@ cli_cmd_volume_create_parse (const char **words, int wordcount, dict_t **options char *invalid_volnames[] = {"volume", "type", "subvolumes", "option", "end-volume", "all", "volume_not_in_ring", - NULL}; + "description", "force", + "snap-max-hard-limit", + "snap-max-soft-limit", NULL}; char *w = NULL; int op_count = 0; int32_t replica_count = 1; @@ -2866,3 +2900,903 @@ out: return ret; } + +int32_t +cli_snap_create_desc_parse (dict_t *dict, const char **words, + size_t wordcount, int32_t desc_opt_loc) +{ + int32_t ret = -1; + char *desc = NULL; + int32_t desc_len = 0; + + desc = GF_CALLOC (MAX_SNAP_DESCRIPTION_LEN + 1, sizeof(char), + gf_common_mt_char); + if (!desc) { + ret = -1; + goto out; + } + + + if (strlen (words[desc_opt_loc]) >= MAX_SNAP_DESCRIPTION_LEN) { + cli_out ("snapshot create: description truncated: " + "Description provided is longer than 1024 characters"); + desc_len = MAX_SNAP_DESCRIPTION_LEN; + } else { + desc_len = strlen (words[desc_opt_loc]); + } + + strncpy (desc, words[desc_opt_loc], desc_len); + desc[desc_len] = '\0'; + /* Calculating the size of the description as given by the user */ + + ret = dict_set_dynstr (dict, "description", desc); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Unable to save snap " + "description"); + goto out; + } + + ret = 0; +out: + if (ret && desc) + GF_FREE (desc); + + return ret; +} + +/* Function to check whether the Volume name is repeated */ +int +cli_check_if_volname_repeated (const char **words, unsigned int start_index, + uint64_t cur_index) { + uint64_t i = -1; + int ret = 0; + + GF_ASSERT (words); + + for (i = start_index ; i < cur_index ; i++) { + if (strcmp (words[i], words[cur_index]) == 0) { + ret = -1; + goto out; + } + } +out: + return ret; +} + +/* snapshot create [description ] + * [force] + * @arg-0, dict : Request Dictionary to be sent to server side. + * @arg-1, words : Contains individual words of CLI command. + * @arg-2, wordcount: Contains number of words present in the CLI command. + * + * return value : -1 on failure + * 0 on success + */ +int +cli_snap_create_parse (dict_t *dict, const char **words, int wordcount) { + uint64_t i = 0; + int ret = -1; + uint64_t volcount = 0; + char key[PATH_MAX] = ""; + char *snapname = NULL; + unsigned int cmdi = 2; + /* cmdi is command index, here cmdi is "2" (gluster snapshot create)*/ + + GF_ASSERT (words); + GF_ASSERT (dict); + + if (wordcount <= cmdi + 1) { + cli_err ("Invalid Syntax."); + gf_log ("cli", GF_LOG_ERROR, + "Too less words for snap create command"); + goto out; + } + + if (strlen(words[cmdi]) >= GLUSTERD_MAX_SNAP_NAME) { + cli_err ("snapshot create: failed: snapname cannot exceed " + "255 characters."); + gf_log ("cli", GF_LOG_ERROR, "Snapname too long"); + + goto out; + } + + snapname = (char *) words[cmdi]; + for (i = 0 ; i < strlen (snapname); i++) { + /* Following volume name convention */ + if (!isalnum (snapname[i]) && (snapname[i] != '_' + && (snapname[i] != '-'))) { + /* TODO : Is this message enough?? */ + cli_err ("Snapname can contain only alphanumeric, " + "\"-\" and \"_\" characters"); + goto out; + } + } + + ret = dict_set_str (dict, "snapname", (char *)words[cmdi]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not save snap " + "name(%s)", (char *)words[cmdi]); + goto out; + } + + /* Filling volume name in the dictionary */ + for (i = cmdi + 1 ; i < wordcount + && (strcmp (words[i], "description")) != 0 + && (strcmp (words[i], "force") != 0); i++) { + volcount++; + /* volume index starts from 1 */ + ret = snprintf (key, sizeof (key), "volname%ld", volcount); + if (ret < 0) { + goto out; + } + + ret = dict_set_str (dict, key, (char *)words[i]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not " + "save volume name(%s)", (char *)words[i]); + goto out; + } + + if (i >= cmdi + 2) { + ret = -1; + cli_err("Creating multiple volume snapshot is not " + "supported as of now"); + goto out; + } + /* TODO : remove this above condition check once + * multiple volume snapshot is supported */ + } + + if (volcount == 0) { + ret = -1; + cli_err ("Please provide the volume name"); + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = dict_set_int32 (dict, "volcount", volcount); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not save volcount"); + goto out; + } + + /* Verify how we got out of "for" loop, + * if it is by reaching wordcount limit then goto "out", + * because we need not parse for "description" and "force" + * after this. + */ + if (i == wordcount) { + goto out; + } + + if ((strcmp (words[i], "description")) == 0) { + ++i; + if (i > (wordcount - 1)) { + ret = -1; + cli_err ("Please provide a description"); + gf_log ("cli", GF_LOG_ERROR, + "Description not provided"); + goto out; + } + + ret = cli_snap_create_desc_parse(dict, words, wordcount, i); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not save snap " + "description"); + goto out; + } + + if (i == (wordcount - 1)) + goto out; + i++; + /* point the index to next word. + * As description might be follwed by force option. + * Before that, check if wordcount limit is reached + */ + } + + if ((strcmp (words[i], "force") != 0)) { + ret = -1; + cli_err ("Invalid Syntax."); + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + ret = dict_set_int8 (dict, "snap-force", 1); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not save " + "snap force option"); + goto out; + } + + /* Check if the command has anything after "force" keyword */ + if (++i < wordcount) { + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = 0; + +out: + return ret; +} + +/* snapshot list [volname] + * @arg-0, dict : Request Dictionary to be sent to server side. + * @arg-1, words : Contains individual words of CLI command. + * @arg-2, wordcount: Contains number of words present in the CLI command. + * + * return value : -1 on failure + * 0 on success + */ +int +cli_snap_list_parse (dict_t *dict, const char **words, int wordcount) { + int ret = -1; + + GF_ASSERT (words); + GF_ASSERT (dict); + + if (wordcount < 2 || wordcount > 3) { + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + if (wordcount == 2) { + ret = 0; + goto out; + } + + ret = dict_set_str (dict, "volname", (char *)words[2]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, + "Failed to save volname in dictionary"); + goto out; + } +out: + return ret; +} + +/* snapshot info [(snapname | volume )] + * @arg-0, dict : Request Dictionary to be sent to server side. + * @arg-1, words : Contains individual words of CLI command. + * @arg-2, wordcount: Contains number of words present in the CLI command. + * + * return value : -1 on failure + * 0 on success + */ +int +cli_snap_info_parse (dict_t *dict, const char **words, int wordcount) +{ + + int ret = -1; + int32_t cmd = GF_SNAP_INFO_TYPE_ALL; + unsigned int cmdi = 2; + /* cmdi is command index, here cmdi is "2" (gluster snapshot info)*/ + + GF_ASSERT (words); + GF_ASSERT (dict); + + if (wordcount > 4 || wordcount < cmdi) { + gf_log ("", GF_LOG_ERROR, "Invalid syntax"); + goto out; + } + + if (wordcount == cmdi) { + ret = 0; + goto out; + } + + /* If 3rd word is not "volume", then it must + * be snapname. + */ + if (strcmp (words[cmdi], "volume") != 0) { + ret = dict_set_str (dict, "snapname", + (char *)words[cmdi]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Unable to save " + "snapname %s", words[cmdi]); + goto out; + } + + /* Once snap name is parsed, if we encounter any other + * word then fail it. Invalid Syntax. + * example : snapshot info word + */ + if ((cmdi + 1) != wordcount) { + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + cmd = GF_SNAP_INFO_TYPE_SNAP; + ret = 0; + goto out; + /* No need to continue the parsing once we + * get the snapname + */ + } + + /* If 3rd word is "volume", then check if next word + * is present. As, "snapshot info volume" is an + * invalid command. + */ + if ((cmdi + 1) == wordcount) { + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = dict_set_str (dict, "volname", (char *)words[wordcount - 1]); + if (ret) { + gf_log ("", GF_LOG_ERROR, "Count not save " + "volume name %s", words[wordcount - 1]); + goto out; + } + cmd = GF_SNAP_INFO_TYPE_VOL; +out: + if (ret == 0) { + ret = dict_set_int32 (dict, "cmd", cmd); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not save " + "type of snapshot info"); + } + } + return ret; +} + + + +/* snapshot restore + * @arg-0, dict : Request Dictionary to be sent to server side. + * @arg-1, words : Contains individual words of CLI command. + * @arg-2, wordcount: Contains number of words present in the CLI command. + * + * return value : -1 on failure + * 0 on success + */ +int +cli_snap_restore_parse (dict_t *dict, const char **words, int wordcount) +{ + + int ret = -1; + + GF_ASSERT (words); + GF_ASSERT (dict); + + if (wordcount != 3) { + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = dict_set_str (dict, "snapname", (char *)words[2]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Unable to save snap-name %s", + words[2]); + goto out; + } +out: + return ret; +} + +/* snapshot delete + * @arg-0, dict : Request Dictionary to be sent to server side. + * @arg-1, words : Contains individual words of CLI command. + * @arg-2, wordcount: Contains number of words present in the CLI command. + * + * return value : -1 on failure + * 0 on success + * 1 if user cancel the operation + */ +int +cli_snap_delete_parse (dict_t *dict, const char **words, int wordcount, + struct cli_state *state) { + + int ret = -1; + const char *question = NULL; + gf_answer_t answer = GF_ANSWER_NO; + + question = "Deleting snap will erase all the information about " + "the snap. Do you still want to continue?"; + + GF_ASSERT (words); + GF_ASSERT (dict); + + if (wordcount != 3) { + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = dict_set_str (dict, "snapname", (char *)words[2]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Unable to save snapname %s", + words[2]); + goto out; + } + + answer = cli_cmd_get_confirmation (state, question); + if (GF_ANSWER_NO == answer) { + ret = 1; + gf_log ("cli", GF_LOG_DEBUG, "User cancelled " + "snapshot delete operation for snap %s", + (char *)words[2]); + goto out; + } +out: + return ret; +} + +/* snapshot status [(snapname | volume )] + * @arg-0, dict : Request Dictionary to be sent to server side. + * @arg-1, words : Contains individual words of CLI command. + * @arg-2, wordcount: Contains number of words present in the CLI command. + * + * return value : -1 on failure + * 0 on success + */ +int +cli_snap_status_parse (dict_t *dict, const char **words, int wordcount) +{ + + int ret = -1; + int32_t cmd = GF_SNAP_STATUS_TYPE_ALL; + unsigned int cmdi = 2; + /* cmdi is command index, here cmdi is "2" (gluster snapshot status)*/ + + GF_ASSERT (words); + GF_ASSERT (dict); + + if (wordcount > 4 || wordcount < cmdi) { + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + if (wordcount == cmdi) { + ret = 0; + goto out; + } + + /* if 3rd word is not "volume", then it must be "snapname" + */ + if (strcmp (words[cmdi], "volume") != 0) { + ret = dict_set_str (dict, "snapname", + (char *)words[cmdi]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Count not save " + "snap name %s", words[cmdi]); + goto out; + } + + if ((cmdi + 1) != wordcount) { + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = 0; + cmd = GF_SNAP_STATUS_TYPE_SNAP; + goto out; + } + + /* If 3rd word is "volume", then check if next word is present. + * As, "snapshot info volume" is an invalid command + */ + if ((cmdi + 1) == wordcount) { + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = dict_set_str (dict, "volname", (char *)words [wordcount - 1]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Count not save " + "volume name %s", words[wordcount - 1]); + goto out; + } + cmd = GF_SNAP_STATUS_TYPE_VOL; + +out: + if (ret == 0) { + ret = dict_set_int32 (dict, "cmd", cmd); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not save cmd " + "of snapshot status"); + } + } + return ret; +} + + +int32_t +cli_snap_config_limit_parse (const char **words, dict_t *dict, + unsigned int wordcount, unsigned int index, + char *key) +{ + int ret = -1; + int limit = 0; + + GF_ASSERT (words); + GF_ASSERT (dict); + GF_ASSERT (key); + + if (index >= wordcount) { + ret = -1; + cli_err ("Please provide a value for %s.", key); + gf_log ("cli", GF_LOG_ERROR, "Value not provided for %s", key); + goto out; + } + + limit = strtol (words[index], NULL, 0); + if (limit <= 0) { + ret = -1; + cli_err ("%s should be greater than 0.", key); + goto out; + } + + ret = dict_set_int32 (dict, key, limit); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Could not set " + "%s in dictionary", key); + goto out; + } + +out: + return ret; +} + +/* function cli_snap_config_parse + * Config Syntax : gluster snapshot config [volname] + * [snap-max-hard-limit ] + * [snap-max-soft-limit ] + * + return value: <0 on failure + 1 if user cancels the operation + 0 on success + + NOTE : snap-max-soft-limit can only be set for system. +*/ +int32_t +cli_snap_config_parse (const char **words, int wordcount, dict_t *dict, + struct cli_state *state) +{ + int ret = -1; + gf_answer_t answer = GF_ANSWER_NO; + gf_boolean_t vol_presence = _gf_false; + struct snap_config_opt_vals_ *conf_vals = NULL; + int8_t hard_limit = 0; + int8_t soft_limit = 0; + int8_t config_type = -1; + const char *question = NULL; + unsigned int cmdi = 2; + /* cmdi is command index, here cmdi is "2" (gluster snapshot config)*/ + + GF_ASSERT (words); + GF_ASSERT (dict); + GF_ASSERT (state); + + if ((wordcount < 2) || (wordcount > 7)) { + gf_log ("cli", GF_LOG_ERROR, + "Invalid wordcount(%d)", wordcount); + goto out; + } + + if (wordcount == 2) { + config_type = GF_SNAP_CONFIG_DISPLAY; + ret = 0; + goto set; + } + + /* Check whether the 3rd word is volname */ + if (strcmp (words[cmdi], "snap-max-hard-limit") != 0 + && strcmp (words[cmdi], "snap-max-soft-limit") != 0) { + ret = dict_set_str (dict, "volname", (char *)words[cmdi]); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to set volname"); + goto out; + } + cmdi++; + vol_presence = _gf_true; + + if (cmdi == wordcount) { + config_type = GF_SNAP_CONFIG_DISPLAY; + ret = 0; + goto set; + } + } + + config_type = GF_SNAP_CONFIG_TYPE_SET; + + if (strcmp (words[cmdi], "snap-max-hard-limit") == 0) { + ret = cli_snap_config_limit_parse (words, dict, wordcount, + ++cmdi, "snap-max-hard-limit"); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to parse snap " + "config hard limit"); + goto out; + } + hard_limit = 1; + + if (++cmdi == wordcount) { + ret = 0; + goto set; + } + } + + if (strcmp (words[cmdi], "snap-max-soft-limit") == 0) { + if (vol_presence == 1) { + ret = -1; + cli_err ("Soft limit cannot be set to individual " + "volumes."); + gf_log ("cli", GF_LOG_ERROR, "Soft limit cannot be " + "set to volumes"); + goto out; + } + + ret = cli_snap_config_limit_parse (words, dict, wordcount, + ++cmdi, "snap-max-soft-limit"); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to parse snap " + "config soft limit"); + goto out; + } + + if (++cmdi != wordcount) { + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + soft_limit = 1; + } else { + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + ret = 0; /* Success */ + +set: + ret = dict_set_int32 (dict, "config-command", config_type); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Unable to set " + "config-command"); + goto out; + } + + if (config_type == GF_SNAP_CONFIG_TYPE_SET) { + conf_vals = snap_confopt_vals; + if (hard_limit && soft_limit) { + question = conf_vals[GF_SNAP_CONFIG_SET_BOTH].question; + } else if (soft_limit) { + question = conf_vals[GF_SNAP_CONFIG_SET_SOFT].question; + } else if (hard_limit) { + question = conf_vals[GF_SNAP_CONFIG_SET_HARD].question; + } + + answer = cli_cmd_get_confirmation (state, question); + if (GF_ANSWER_NO == answer) { + ret = 1; + gf_log ("cli", GF_LOG_DEBUG, "User cancelled " + "snapshot config operation"); + } + } + +out: + return ret; +} + +int +validate_snapname (const char *snapname, char **opwords) { + int ret = -1; + int i = 0; + + GF_ASSERT (snapname); + GF_ASSERT (opwords); + + for (i = 0 ; opwords[i] != NULL; i++) { + if (strcmp (opwords[i], snapname) == 0) { + cli_out ("\"%s\" cannot be a snapname", snapname); + goto out; + } + } + ret = 0; +out: + return ret; +} + +int32_t +cli_cmd_snapshot_parse (const char **words, int wordcount, dict_t **options, + struct cli_state *state) +{ + int32_t ret = -1; + dict_t *dict = NULL; + gf1_cli_snapshot type = GF_SNAP_OPTION_TYPE_NONE; + char *w = NULL; + char *opwords[] = {"create", "delete", "restore", "start", + "stop", "list", "status", "config", + "info", NULL}; + char *invalid_snapnames[] = {"description", "force", + "volume", NULL}; + + GF_ASSERT (words); + GF_ASSERT (options); + GF_ASSERT (state); + + dict = dict_new (); + if (!dict) + goto out; + + /* Lowest wordcount possible */ + if (wordcount < 2) { + gf_log ("", GF_LOG_ERROR, + "Invalid command: Not enough arguments"); + goto out; + } + + w = str_getunamb (words[1], opwords); + if (!w) { + /* Checks if the operation is a valid operation */ + gf_log ("", GF_LOG_ERROR, "Opword Mismatch"); + goto out; + } + + if (!strcmp (w, "create")) { + type = GF_SNAP_OPTION_TYPE_CREATE; + } else if (!strcmp (w, "list")) { + type = GF_SNAP_OPTION_TYPE_LIST; + } else if (!strcmp (w, "info")) { + type = GF_SNAP_OPTION_TYPE_INFO; + } else if (!strcmp (w, "delete")) { + type = GF_SNAP_OPTION_TYPE_DELETE; + } else if (!strcmp (w, "config")) { + type = GF_SNAP_OPTION_TYPE_CONFIG; + } else if (!strcmp (w, "restore")) { + type = GF_SNAP_OPTION_TYPE_RESTORE; + } else if (!strcmp (w, "status")) { + type = GF_SNAP_OPTION_TYPE_STATUS; + } + + if (type != GF_SNAP_OPTION_TYPE_CONFIG) { + ret = dict_set_int32 (dict, "hold_snap_locks", _gf_true); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, + "Unable to set hold-snap-locks value " + "as _gf_true"); + goto out; + } + } + + /* Check which op is intended */ + switch (type) { + case GF_SNAP_OPTION_TYPE_CREATE: + /* Syntax : + * gluster snapshot create + * [description ] + * [force] + */ + /* In cases where the snapname is not given then + * parsing fails & snapname cannot be "description", + * "force" and "volume", that check is made here + */ + if (wordcount == 2){ + ret = -1; + gf_log ("cli", GF_LOG_ERROR, "Invalid Syntax"); + goto out; + } + + ret = validate_snapname (words[2], invalid_snapnames); + if (ret) { + goto out; + } + + ret = cli_snap_create_parse (dict, words, wordcount); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, + "create command parsing failed."); + goto out; + } + break; + + case GF_SNAP_OPTION_TYPE_INFO: + /* Syntax : + * gluster snapshot info [(snapname] | [vol )] + */ + ret = cli_snap_info_parse (dict, words, wordcount); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to parse " + "snapshot info command"); + goto out; + } + break; + + case GF_SNAP_OPTION_TYPE_LIST: + /* Syntax : + * gluster snaphsot list [volname] + */ + + ret = cli_snap_list_parse (dict, words, wordcount); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to parse " + "snapshot list command"); + goto out; + } + break; + + case GF_SNAP_OPTION_TYPE_DELETE: + /* Syntax : + * gluster snapshot delete + */ + ret = cli_snap_delete_parse (dict, words, wordcount, state); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to parse " + "snapshot delete command"); + goto out; + } + break; + + case GF_SNAP_OPTION_TYPE_CONFIG: + /* snapshot config [volname] [snap-max-hard-limit ] + * [snap-max-soft-limit ] */ + ret = cli_snap_config_parse (words, wordcount, dict, state); + if (ret) { + if (ret < 0) + gf_log ("cli", GF_LOG_ERROR, + "config command parsing failed."); + goto out; + } + + ret = dict_set_int32 (dict, "type", GF_SNAP_OPTION_TYPE_CONFIG); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Unable to set " + "config type"); + ret = -1; + goto out; + } + break; + + case GF_SNAP_OPTION_TYPE_STATUS: + { + /* Syntax : + * gluster snapshot status [(snapname | + * volume )] + */ + ret = cli_snap_status_parse (dict, words, wordcount); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to parse " + "snapshot status command"); + goto out; + } + break; + } + + case GF_SNAP_OPTION_TYPE_RESTORE: + /* Syntax: + * snapshot restore + */ + ret = cli_snap_restore_parse (dict, words, wordcount); + if (ret) { + gf_log ("cli", GF_LOG_ERROR, "Failed to parse " + "restore command"); + goto out; + } + break; + + default: + gf_log ("", GF_LOG_ERROR, "Opword Mismatch"); + goto out; + } + + ret = dict_set_int32 (dict, "type", type); + if (ret) { + gf_log ("", GF_LOG_ERROR, + "Failed to set type."); + goto out; + } + /* If you got so far, input is valid */ + ret = 0; +out: + if (ret) { + if (dict) + dict_destroy (dict); + } else + *options = dict; + + return ret; +} -- cgit