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📄 Makefile(775 B)
📄 Makefile.depend(398 B)
📄 activemap.c(17.58 KB)
📄 activemap.h(2.86 KB)
📄 control.c(14.08 KB)
📄 control.h(1.86 KB)
📄 crc32.c(5.58 KB)
📄 crc32.h(532 B)
📄 ebuf.c(5.95 KB)
📄 ebuf.h(2 KB)
📄 event.c(4.18 KB)
📄 event.h(1.83 KB)
📄 hast.conf.5(11.13 KB)
📄 hast.h(7.98 KB)
📄 hast_checksum.c(4.13 KB)
📄 hast_checksum.h(1.83 KB)
📄 hast_compression.c(6.69 KB)
📄 hast_compression.h(1.85 KB)
📄 hast_proto.c(5.15 KB)
📄 hast_proto.h(1.98 KB)
📄 hastd.8(6.57 KB)
📄 hastd.c(36.46 KB)
📄 hastd.h(2.04 KB)
📄 hooks.c(9.37 KB)
📄 hooks.h(1.88 KB)
📄 lzf.c(11.03 KB)
📄 lzf.h(7.31 KB)
📄 metadata.c(6.43 KB)
📄 metadata.h(1.83 KB)
📄 nv.c(21.83 KB)
📄 nv.h(5.84 KB)
📄 parse.y(22.02 KB)
📄 pjdlog.c(12.97 KB)
📄 pjdlog.h(4.71 KB)
📄 primary.c(67.26 KB)
📄 proto.c(10.66 KB)
📄 proto.h(2.73 KB)
📄 proto_common.c(5.81 KB)
📄 proto_impl.h(3.08 KB)
📄 proto_socketpair.c(5.75 KB)
📄 proto_tcp.c(14.76 KB)
📄 proto_uds.c(8.32 KB)
📄 rangelock.c(3.49 KB)
📄 rangelock.h(1.94 KB)
📄 refcnt.h(1.91 KB)
📄 secondary.c(26.69 KB)
📄 subr.c(7.83 KB)
📄 subr.h(2.09 KB)
📄 synch.h(4.77 KB)
📄 token.l(2.84 KB)

Editing: hast_proto.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2009-2010 The FreeBSD Foundation
 * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>
 * All rights reserved.
 *
 * This software was developed by Pawel Jakub Dawidek under sponsorship from
 * the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/endian.h>

#include <errno.h>
#include <strings.h>

#include <hast.h>
#include <ebuf.h>
#include <nv.h>
#include <pjdlog.h>
#include <proto.h>

#include "hast_checksum.h"
#include "hast_compression.h"
#include "hast_proto.h"

struct hast_main_header {
	/* Protocol version. */
	uint8_t		version;
	/* Size of nv headers. */
	uint32_t	size;
} __packed;

typedef int hps_send_t(const struct hast_resource *, struct nv *nv, void **,
    size_t *, bool *);
typedef int hps_recv_t(const struct hast_resource *, struct nv *nv, void **,
    size_t *, bool *);

struct hast_pipe_stage {
	const char	*hps_name;
	hps_send_t	*hps_send;
	hps_recv_t	*hps_recv;
};

static struct hast_pipe_stage pipeline[] = {
	{ "compression", compression_send, compression_recv },
	{ "checksum", checksum_send, checksum_recv }
};

/*
 * Send the given nv structure via conn.
 * We keep headers in nv structure and pass data in separate argument.
 * There can be no data at all (data is NULL then).
 */
int
hast_proto_send(const struct hast_resource *res, struct proto_conn *conn,
    struct nv *nv, const void *data, size_t size)
{
	struct hast_main_header hdr;
	struct ebuf *eb;
	bool freedata;
	void *dptr, *hptr;
	size_t hsize;
	int ret;

dptr = (void *)(uintptr_t)data;
	freedata = false;
	ret = -1;

if (data != NULL) {
		unsigned int ii;

for (ii = 0; ii < sizeof(pipeline) / sizeof(pipeline[0]);
		    ii++) {
			(void)pipeline[ii].hps_send(res, nv, &dptr, &size,
			    &freedata);
		}
		nv_add_uint32(nv, size, "size");
		if (nv_error(nv) != 0) {
			errno = nv_error(nv);
			goto end;
		}
	}

eb = nv_hton(nv);
	if (eb == NULL)
		goto end;

hdr.version = res != NULL ? res->hr_version : HAST_PROTO_VERSION;
	hdr.size = htole32((uint32_t)ebuf_size(eb));
	if (ebuf_add_head(eb, &hdr, sizeof(hdr)) == -1)
		goto end;

hptr = ebuf_data(eb, &hsize);
	if (proto_send(conn, hptr, hsize) == -1)
		goto end;
	if (data != NULL && proto_send(conn, dptr, size) == -1)
		goto end;

ret = 0;
end:
	if (freedata)
		free(dptr);
	return (ret);
}

int
hast_proto_recv_hdr(const struct proto_conn *conn, struct nv **nvp)
{
	struct hast_main_header hdr;
	struct nv *nv;
	struct ebuf *eb;
	void *hptr;

eb = NULL;
	nv = NULL;

if (proto_recv(conn, &hdr, sizeof(hdr)) == -1)
		goto fail;

if (hdr.version > HAST_PROTO_VERSION) {
		errno = ERPCMISMATCH;
		goto fail;
	}

hdr.size = le32toh(hdr.size);

eb = ebuf_alloc(hdr.size);
	if (eb == NULL)
		goto fail;
	if (ebuf_add_tail(eb, NULL, hdr.size) == -1)
		goto fail;
	hptr = ebuf_data(eb, NULL);
	PJDLOG_ASSERT(hptr != NULL);
	if (proto_recv(conn, hptr, hdr.size) == -1)
		goto fail;
	nv = nv_ntoh(eb);
	if (nv == NULL)
		goto fail;

*nvp = nv;
	return (0);
fail:
	if (eb != NULL)
		ebuf_free(eb);
	return (-1);
}

int
hast_proto_recv_data(const struct hast_resource *res, struct proto_conn *conn,
    struct nv *nv, void *data, size_t size)
{
	unsigned int ii;
	bool freedata;
	size_t dsize;
	void *dptr;
	int ret;

PJDLOG_ASSERT(data != NULL);
	PJDLOG_ASSERT(size > 0);

ret = -1;
	freedata = false;
	dptr = data;

dsize = nv_get_uint32(nv, "size");
	if (dsize > size) {
		errno = EINVAL;
		goto end;
	} else if (dsize == 0) {
		(void)nv_set_error(nv, 0);
	} else {
		if (proto_recv(conn, data, dsize) == -1)
			goto end;
		for (ii = sizeof(pipeline) / sizeof(pipeline[0]); ii > 0;
		    ii--) {
			ret = pipeline[ii - 1].hps_recv(res, nv, &dptr,
			    &dsize, &freedata);
			if (ret == -1)
				goto end;
		}
		ret = -1;
		if (dsize > size) {
			errno = EINVAL;
			goto end;
		}
		if (dptr != data)
			bcopy(dptr, data, dsize);
	}

ret = 0;
end:
	if (freedata)
		free(dptr);
	return (ret);
}

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Editing: hast_proto.c

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