/*
- * blobmsg - library for generating/parsing structured blob messages
+ * Copyright (C) 2010-2012 Felix Fietkau <nbd@openwrt.org>
*
- * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-
#ifndef __BLOBMSG_H
#define __BLOBMSG_H
+#include <stdarg.h>
#include "blob.h"
#define BLOBMSG_ALIGN 2
BLOBMSG_TYPE_INT16,
BLOBMSG_TYPE_INT8,
__BLOBMSG_TYPE_LAST,
- BLOBMSG_TYPE_LAST = __BLOBMSG_TYPE_LAST - 1
+ BLOBMSG_TYPE_LAST = __BLOBMSG_TYPE_LAST - 1,
+ BLOBMSG_TYPE_BOOL = BLOBMSG_TYPE_INT8,
};
struct blobmsg_hdr {
enum blobmsg_type type;
};
-static inline int blobmsg_hdrlen(int namelen)
+static inline int blobmsg_hdrlen(unsigned int namelen)
{
return BLOBMSG_PADDING(sizeof(struct blobmsg_hdr) + namelen + 1);
}
+static inline void blobmsg_clear_name(struct blob_attr *attr)
+{
+ struct blobmsg_hdr *hdr = (struct blobmsg_hdr *) blob_data(attr);
+ hdr->name[0] = 0;
+}
+
static inline const char *blobmsg_name(const struct blob_attr *attr)
{
- struct blobmsg_hdr *hdr = blob_data(attr);
+ struct blobmsg_hdr *hdr = (struct blobmsg_hdr *) blob_data(attr);
return (const char *) hdr->name;
}
+static inline int blobmsg_type(const struct blob_attr *attr)
+{
+ return blob_id(attr);
+}
+
static inline void *blobmsg_data(const struct blob_attr *attr)
{
- struct blobmsg_hdr *hdr = blob_data(attr);
- return (char *) hdr + blobmsg_hdrlen(hdr->namelen);
+ struct blobmsg_hdr *hdr = (struct blobmsg_hdr *) blob_data(attr);
+ char *data = (char *) blob_data(attr);
+
+ if (blob_is_extended(attr))
+ data += blobmsg_hdrlen(be16_to_cpu(hdr->namelen));
+
+ return data;
}
static inline int blobmsg_data_len(const struct blob_attr *attr)
{
uint8_t *start, *end;
- start = blob_data(attr);
- end = blobmsg_data(attr);
+ start = (uint8_t *) blob_data(attr);
+ end = (uint8_t *) blobmsg_data(attr);
return blob_len(attr) - (end - start);
}
+static inline int blobmsg_len(const struct blob_attr *attr)
+{
+ return blobmsg_data_len(attr);
+}
+
bool blobmsg_check_attr(const struct blob_attr *attr, bool name);
+bool blobmsg_check_attr_list(const struct blob_attr *attr, int type);
+
+/*
+ * blobmsg_check_array: validate array/table and return size
+ *
+ * Checks if all elements of an array or table are valid and have
+ * the specified type. Returns the number of elements in the array
+ */
+int blobmsg_check_array(const struct blob_attr *attr, int type);
+
int blobmsg_parse(const struct blobmsg_policy *policy, int policy_len,
- struct blob_attr **tb, void *data, int len);
+ struct blob_attr **tb, void *data, unsigned int len);
+int blobmsg_parse_array(const struct blobmsg_policy *policy, int policy_len,
+ struct blob_attr **tb, void *data, unsigned int len);
int blobmsg_add_field(struct blob_buf *buf, int type, const char *name,
- const void *data, int len);
+ const void *data, unsigned int len);
static inline int
blobmsg_add_u8(struct blob_buf *buf, const char *name, uint8_t val)
static inline int
blobmsg_add_u16(struct blob_buf *buf, const char *name, uint16_t val)
{
+ val = cpu_to_be16(val);
return blobmsg_add_field(buf, BLOBMSG_TYPE_INT16, name, &val, 2);
}
static inline int
blobmsg_add_u32(struct blob_buf *buf, const char *name, uint32_t val)
{
+ val = cpu_to_be32(val);
return blobmsg_add_field(buf, BLOBMSG_TYPE_INT32, name, &val, 4);
}
static inline int
blobmsg_add_u64(struct blob_buf *buf, const char *name, uint64_t val)
{
+ val = cpu_to_be64(val);
return blobmsg_add_field(buf, BLOBMSG_TYPE_INT64, name, &val, 8);
}
return blobmsg_add_field(buf, BLOBMSG_TYPE_STRING, name, string, strlen(string) + 1);
}
+static inline int
+blobmsg_add_blob(struct blob_buf *buf, struct blob_attr *attr)
+{
+ return blobmsg_add_field(buf, blobmsg_type(attr), blobmsg_name(attr),
+ blobmsg_data(attr), blobmsg_data_len(attr));
+}
+
void *blobmsg_open_nested(struct blob_buf *buf, const char *name, bool array);
static inline void *
return blob_buf_init(buf, BLOBMSG_TYPE_TABLE);
}
-char *blobmsg_format_json(struct blob_attr *attr, bool list);
+static inline uint8_t blobmsg_get_u8(struct blob_attr *attr)
+{
+ return *(uint8_t *) blobmsg_data(attr);
+}
+
+static inline bool blobmsg_get_bool(struct blob_attr *attr)
+{
+ return *(uint8_t *) blobmsg_data(attr);
+}
+
+static inline uint16_t blobmsg_get_u16(struct blob_attr *attr)
+{
+ return be16_to_cpu(*(uint16_t *) blobmsg_data(attr));
+}
+
+static inline uint32_t blobmsg_get_u32(struct blob_attr *attr)
+{
+ return be32_to_cpu(*(uint32_t *) blobmsg_data(attr));
+}
+
+static inline uint64_t blobmsg_get_u64(struct blob_attr *attr)
+{
+ uint32_t *ptr = (uint32_t *) blobmsg_data(attr);
+ uint64_t tmp = ((uint64_t) be32_to_cpu(ptr[0])) << 32;
+ tmp |= be32_to_cpu(ptr[1]);
+ return tmp;
+}
+
+static inline char *blobmsg_get_string(struct blob_attr *attr)
+{
+ if (!attr)
+ return NULL;
+
+ return (char *) blobmsg_data(attr);
+}
+
+void *blobmsg_alloc_string_buffer(struct blob_buf *buf, const char *name, unsigned int maxlen);
+void *blobmsg_realloc_string_buffer(struct blob_buf *buf, unsigned int maxlen);
+void blobmsg_add_string_buffer(struct blob_buf *buf);
+
+void blobmsg_vprintf(struct blob_buf *buf, const char *name, const char *format, va_list arg);
+void blobmsg_printf(struct blob_buf *buf, const char *name, const char *format, ...)
+ __attribute__((format(printf, 3, 4)));
+
+
+/* blobmsg to json formatting */
#define blobmsg_for_each_attr(pos, attr, rem) \
- for (rem = blobmsg_data_len(attr), pos = blobmsg_data(attr); \
- (blob_pad_len(pos) <= rem) && \
- (blob_pad_len(pos) >= sizeof(struct blob_attr)); \
- rem -= blob_pad_len(pos), pos = blob_next(pos))
+ for (rem = attr ? blobmsg_data_len(attr) : 0, \
+ pos = attr ? blobmsg_data(attr) : 0; \
+ rem > 0 && (blob_pad_len(pos) <= rem) && \
+ (blob_pad_len(pos) >= sizeof(struct blob_attr)); \
+ rem -= blob_pad_len(pos), pos = blob_next(pos))
#endif
projects / project / libubox.git / blobdiff