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-rw-r--r--src/errcode.c200
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diff --git a/src/errcode.c b/src/errcode.c
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--- a/src/errcode.c
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-/* Copyright 2007-2010 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <assert.h> /* assert */
-#include <errno.h> /* errno */
-#include <string.h> /* strerror */
-
-#include <libipset/debug.h> /* D() */
-#include <libipset/data.h> /* ipset_data_get */
-#include <libipset/session.h> /* ipset_err */
-#include <libipset/types.h> /* struct ipset_type */
-#include <libipset/utils.h> /* STRNEQ */
-#include <libipset/errcode.h> /* prototypes */
-#include <libipset/linux_ip_set_bitmap.h> /* bitmap specific errcodes */
-#include <libipset/linux_ip_set_hash.h> /* hash specific errcodes */
-#include <libipset/linux_ip_set_list.h> /* list specific errcodes */
-
-/* Core kernel error codes */
-static const struct ipset_errcode_table core_errcode_table[] = {
- /* Generic error codes */
- { ENOENT, 0,
- "The set with the given name does not exist" },
- { EMSGSIZE, 0,
- "Kernel error received: message could not be created" },
- { IPSET_ERR_PROTOCOL, 0,
- "Kernel error received: ipset protocol error" },
-
- /* CREATE specific error codes */
- { EEXIST, IPSET_CMD_CREATE,
- "Set cannot be created: set with the same name already exists" },
- { IPSET_ERR_FIND_TYPE, 0,
- "Kernel error received: set type not supported" },
- { IPSET_ERR_MAX_SETS, 0,
- "Kernel error received: maximal number of sets reached, "
- "cannot create more." },
- { IPSET_ERR_INVALID_NETMASK, 0,
- "The value of the netmask parameter is invalid" },
- { IPSET_ERR_INVALID_FAMILY, 0,
- "Protocol family not supported by the set type" },
-
- /* DESTROY specific error codes */
- { IPSET_ERR_BUSY, IPSET_CMD_DESTROY,
- "Set cannot be destroyed: it is in use by a kernel component" },
-
- /* FLUSH specific error codes */
-
- /* RENAME specific error codes */
- { IPSET_ERR_EXIST_SETNAME2, IPSET_CMD_RENAME,
- "Set cannot be renamed: a set with the new name already exists" },
- { IPSET_ERR_REFERENCED, IPSET_CMD_RENAME,
- "Set cannot be renamed: it is in use by another system" },
-
- /* SWAP specific error codes */
- { IPSET_ERR_EXIST_SETNAME2, IPSET_CMD_SWAP,
- "Sets cannot be swapped: the second set does not exist" },
- { IPSET_ERR_TYPE_MISMATCH, IPSET_CMD_SWAP,
- "The sets cannot be swapped: they type does not match" },
-
- /* LIST/SAVE specific error codes */
-
- /* Generic (CADT) error codes */
- { IPSET_ERR_INVALID_CIDR, 0,
- "The value of the CIDR parameter of the IP address is invalid" },
- { IPSET_ERR_TIMEOUT, 0,
- "Timeout cannot be used: set was created without timeout support" },
- { IPSET_ERR_IPADDR_IPV4, 0,
- "An IPv4 address is expected, but not received" },
- { IPSET_ERR_IPADDR_IPV6, 0,
- "An IPv6 address is expected, but not received" },
-
- /* ADD specific error codes */
- { IPSET_ERR_EXIST, IPSET_CMD_ADD,
- "Element cannot be added to the set: it's already added" },
-
- /* DEL specific error codes */
- { IPSET_ERR_EXIST, IPSET_CMD_DEL,
- "Element cannot be deleted from the set: it's not added" },
-
- /* TEST specific error codes */
-
- /* HEADER specific error codes */
-
- /* TYPE specific error codes */
- { EEXIST, IPSET_CMD_TYPE,
- "Kernel error received: set type does not supported" },
-
- /* PROTOCOL specific error codes */
-
- { },
-};
-
-/* Bitmap type-specific error codes */
-static const struct ipset_errcode_table bitmap_errcode_table[] = {
- /* Generic (CADT) error codes */
- { IPSET_ERR_BITMAP_RANGE, 0,
- "Element is out of the range of the set" },
- { IPSET_ERR_BITMAP_RANGE_SIZE, IPSET_CMD_CREATE,
- "The range you specified exceeds the size limit of the set type" },
- { },
-};
-
-/* Hash type-specific error codes */
-static const struct ipset_errcode_table hash_errcode_table[] = {
- /* Generic (CADT) error codes */
- { IPSET_ERR_HASH_FULL, 0,
- "Hash is full, cannot add more elements" },
- { IPSET_ERR_HASH_ELEM, 0,
- "Null-valued element, cannot be stored in a hash type of set" },
- { IPSET_ERR_INVALID_PROTO, 0,
- "Invalid protocol specified" },
- { IPSET_ERR_MISSING_PROTO, 0,
- "Protocol missing, but must be specified" },
- { IPSET_ERR_HASH_RANGE_UNSUPPORTED, 0,
- "Range is not supported in the \"net\" component of the element" },
- { IPSET_ERR_HASH_RANGE, 0,
- "Invalid range, covers the whole address space" },
- { },
-};
-
-/* List type-specific error codes */
-static const struct ipset_errcode_table list_errcode_table[] = {
- /* Generic (CADT) error codes */
- { IPSET_ERR_NAME, 0,
- "Set to be added/deleted/tested as element does not exist." },
- { IPSET_ERR_LOOP, 0,
- "Sets with list:set type cannot be added to the set." },
- { IPSET_ERR_BEFORE, 0,
- "No reference set specified." },
- { IPSET_ERR_NAMEREF, 0,
- "The set to which you referred with 'before' or 'after' "
- "does not exist." },
- { IPSET_ERR_LIST_FULL, 0,
- "The set is full, more elements cannot be added." },
- { IPSET_ERR_REF_EXIST, 0,
- "The set to which you referred with 'before' or 'after' "
- "is not added to the set." },
- { },
-};
-
-#define MATCH_TYPENAME(a, b) STRNEQ(a, b, strlen(b))
-
-/**
- * ipset_errcode - interpret a kernel error code
- * @session: session structure
- * @errcode: errcode
- *
- * Find the error code and print the appropriate
- * error message into the error buffer.
- *
- * Returns -1.
- */
-int
-ipset_errcode(struct ipset_session *session, enum ipset_cmd cmd, int errcode)
-{
- const struct ipset_errcode_table *table = core_errcode_table;
- int i, generic;
-
- if (errcode >= IPSET_ERR_TYPE_SPECIFIC) {
- const struct ipset_type *type;
-
- type = ipset_saved_type(session);
- if (type) {
- if (MATCH_TYPENAME(type->name, "bitmap:"))
- table = bitmap_errcode_table;
- else if (MATCH_TYPENAME(type->name, "hash:"))
- table = hash_errcode_table;
- else if (MATCH_TYPENAME(type->name, "list:"))
- table = list_errcode_table;
- }
- }
-
-retry:
- for (i = 0, generic = -1; table[i].errcode; i++) {
- if (table[i].errcode == errcode &&
- (table[i].cmd == cmd || table[i].cmd == 0)) {
- if (table[i].cmd == 0) {
- generic = i;
- continue;
- }
- return ipset_err(session, table[i].message);
- }
- }
- if (generic != -1)
- return ipset_err(session, table[generic].message);
- /* Fall back to the core table */
- if (table != core_errcode_table) {
- table = core_errcode_table;
- goto retry;
- }
- if (errcode < IPSET_ERR_PRIVATE)
- return ipset_err(session, "Kernel error received: %s",
- strerror(errcode));
- else
- return ipset_err(session,
- "Undecoded error %u received from kernel",
- errcode);
-}