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qemu.15027
0182-fsdev-rename-virtio-9p-marshal.-c-h.patch
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File 0182-fsdev-rename-virtio-9p-marshal.-c-h.patch of Package qemu.15027
From 8511f8c4ab9a4b8821f2ea6616ae7b45a889e639 Mon Sep 17 00:00:00 2001 From: Wei Liu <wei.liu2@citrix.com> Date: Mon, 30 Nov 2015 16:14:29 +0000 Subject: [PATCH] fsdev: rename virtio-9p-marshal.{c,h} to 9p-iov-marshal.{c,h} And rename v9fs_marshal to v9fs_iov_marshal, v9fs_unmarshal to v9fs_iov_unmarshal. The rationale behind this change is that, this marshalling interface is used both by virtio and proxy helper. Renaming files and functions to reflect the true nature of this interface. Xen transport is going to have its own marshalling interface. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> (cherry picked from commit 2209bd050a9287120b74f8616837293d739c5fb3) [BR: Fix and/or infrastructure for BSC#1020427 CVE-2016-9602] Signed-off-by: Bruce Rogers <brogers@suse.com> --- Makefile | 2 +- fsdev/9p-iov-marshal.c | 302 ++++++++++++++++++++++++++++++++++++ fsdev/9p-iov-marshal.h | 13 ++ fsdev/Makefile.objs | 2 +- fsdev/virtfs-proxy-helper.c | 4 +- fsdev/virtio-9p-marshal.c | 292 ---------------------------------- fsdev/virtio-9p-marshal.h | 13 -- hw/9pfs/9p-proxy.h | 4 +- hw/9pfs/virtio-9p.h | 6 +- 9 files changed, 324 insertions(+), 314 deletions(-) diff --git a/Makefile b/Makefile index 7d2807cca2..c6b21b6274 100644 --- a/Makefile +++ b/Makefile @@ -227,7 +227,7 @@ qemu-io$(EXESUF): qemu-io.o $(block-obj-y) libqemuutil.a libqemustub.a qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o -fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/9p-marshal.o fsdev/virtio-9p-marshal.o libqemuutil.a libqemustub.a +fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/9p-marshal.o fsdev/9p-iov-marshal.o libqemuutil.a libqemustub.a fsdev/virtfs-proxy-helper$(EXESUF): LIBS += -lcap qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx diff --git a/fsdev/9p-iov-marshal.c b/fsdev/9p-iov-marshal.c new file mode 100644 index 0000000000..894c164dd6 --- /dev/null +++ b/fsdev/9p-iov-marshal.c @@ -0,0 +1,302 @@ +/* + * 9p backend + * + * Copyright IBM, Corp. 2010 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#include <glib.h> +#include <glib/gprintf.h> +#include <sys/types.h> +#include <dirent.h> +#include <sys/time.h> +#include <utime.h> +#include <sys/uio.h> +#include <string.h> +#include <stdint.h> +#include <errno.h> + +#include "qemu/compiler.h" +#include "9p-iov-marshal.h" +#include "qemu/bswap.h" + +static ssize_t v9fs_packunpack(void *addr, struct iovec *sg, int sg_count, + size_t offset, size_t size, int pack) +{ + int i = 0; + size_t copied = 0; + size_t req_size = size; + + + for (i = 0; size && i < sg_count; i++) { + size_t len; + if (offset >= sg[i].iov_len) { + /* skip this sg */ + offset -= sg[i].iov_len; + continue; + } else { + len = MIN(sg[i].iov_len - offset, size); + if (pack) { + memcpy(sg[i].iov_base + offset, addr, len); + } else { + memcpy(addr, sg[i].iov_base + offset, len); + } + size -= len; + copied += len; + addr += len; + if (size) { + offset = 0; + continue; + } + } + } + if (copied < req_size) { + /* + * We copied less that requested size. error out + */ + return -ENOBUFS; + } + return copied; +} + +static ssize_t v9fs_unpack(void *dst, struct iovec *out_sg, int out_num, + size_t offset, size_t size) +{ + return v9fs_packunpack(dst, out_sg, out_num, offset, size, 0); +} + +ssize_t v9fs_pack(struct iovec *in_sg, int in_num, size_t offset, + const void *src, size_t size) +{ + return v9fs_packunpack((void *)src, in_sg, in_num, offset, size, 1); +} + +ssize_t v9fs_iov_unmarshal(struct iovec *out_sg, int out_num, size_t offset, + int bswap, const char *fmt, ...) +{ + int i; + va_list ap; + ssize_t copied = 0; + size_t old_offset = offset; + + va_start(ap, fmt); + for (i = 0; fmt[i]; i++) { + switch (fmt[i]) { + case 'b': { + uint8_t *valp = va_arg(ap, uint8_t *); + copied = v9fs_unpack(valp, out_sg, out_num, offset, sizeof(*valp)); + break; + } + case 'w': { + uint16_t val, *valp; + valp = va_arg(ap, uint16_t *); + copied = v9fs_unpack(&val, out_sg, out_num, offset, sizeof(val)); + if (bswap) { + *valp = le16_to_cpu(val); + } else { + *valp = val; + } + break; + } + case 'd': { + uint32_t val, *valp; + valp = va_arg(ap, uint32_t *); + copied = v9fs_unpack(&val, out_sg, out_num, offset, sizeof(val)); + if (bswap) { + *valp = le32_to_cpu(val); + } else { + *valp = val; + } + break; + } + case 'q': { + uint64_t val, *valp; + valp = va_arg(ap, uint64_t *); + copied = v9fs_unpack(&val, out_sg, out_num, offset, sizeof(val)); + if (bswap) { + *valp = le64_to_cpu(val); + } else { + *valp = val; + } + break; + } + case 's': { + V9fsString *str = va_arg(ap, V9fsString *); + copied = v9fs_iov_unmarshal(out_sg, out_num, offset, bswap, + "w", &str->size); + if (copied > 0) { + offset += copied; + str->data = g_malloc(str->size + 1); + copied = v9fs_unpack(str->data, out_sg, out_num, offset, + str->size); + if (copied > 0) { + str->data[str->size] = 0; + } else { + v9fs_string_free(str); + } + } + break; + } + case 'Q': { + V9fsQID *qidp = va_arg(ap, V9fsQID *); + copied = v9fs_iov_unmarshal(out_sg, out_num, offset, bswap, + "bdq", &qidp->type, &qidp->version, + &qidp->path); + break; + } + case 'S': { + V9fsStat *statp = va_arg(ap, V9fsStat *); + copied = v9fs_iov_unmarshal(out_sg, out_num, offset, bswap, + "wwdQdddqsssssddd", + &statp->size, &statp->type, + &statp->dev, &statp->qid, + &statp->mode, &statp->atime, + &statp->mtime, &statp->length, + &statp->name, &statp->uid, + &statp->gid, &statp->muid, + &statp->extension, + &statp->n_uid, &statp->n_gid, + &statp->n_muid); + break; + } + case 'I': { + V9fsIattr *iattr = va_arg(ap, V9fsIattr *); + copied = v9fs_iov_unmarshal(out_sg, out_num, offset, bswap, + "ddddqqqqq", + &iattr->valid, &iattr->mode, + &iattr->uid, &iattr->gid, + &iattr->size, &iattr->atime_sec, + &iattr->atime_nsec, + &iattr->mtime_sec, + &iattr->mtime_nsec); + break; + } + default: + break; + } + if (copied < 0) { + va_end(ap); + return copied; + } + offset += copied; + } + va_end(ap); + + return offset - old_offset; +} + +ssize_t v9fs_iov_marshal(struct iovec *in_sg, int in_num, size_t offset, + int bswap, const char *fmt, ...) +{ + int i; + va_list ap; + ssize_t copied = 0; + size_t old_offset = offset; + + va_start(ap, fmt); + for (i = 0; fmt[i]; i++) { + switch (fmt[i]) { + case 'b': { + uint8_t val = va_arg(ap, int); + copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); + break; + } + case 'w': { + uint16_t val; + if (bswap) { + cpu_to_le16w(&val, va_arg(ap, int)); + } else { + val = va_arg(ap, int); + } + copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); + break; + } + case 'd': { + uint32_t val; + if (bswap) { + cpu_to_le32w(&val, va_arg(ap, uint32_t)); + } else { + val = va_arg(ap, uint32_t); + } + copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); + break; + } + case 'q': { + uint64_t val; + if (bswap) { + cpu_to_le64w(&val, va_arg(ap, uint64_t)); + } else { + val = va_arg(ap, uint64_t); + } + copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); + break; + } + case 's': { + V9fsString *str = va_arg(ap, V9fsString *); + copied = v9fs_iov_marshal(in_sg, in_num, offset, bswap, + "w", str->size); + if (copied > 0) { + offset += copied; + copied = v9fs_pack(in_sg, in_num, offset, str->data, str->size); + } + break; + } + case 'Q': { + V9fsQID *qidp = va_arg(ap, V9fsQID *); + copied = v9fs_iov_marshal(in_sg, in_num, offset, bswap, "bdq", + qidp->type, qidp->version, + qidp->path); + break; + } + case 'S': { + V9fsStat *statp = va_arg(ap, V9fsStat *); + copied = v9fs_iov_marshal(in_sg, in_num, offset, bswap, + "wwdQdddqsssssddd", + statp->size, statp->type, statp->dev, + &statp->qid, statp->mode, statp->atime, + statp->mtime, statp->length, + &statp->name, + &statp->uid, &statp->gid, &statp->muid, + &statp->extension, statp->n_uid, + statp->n_gid, statp->n_muid); + break; + } + case 'A': { + V9fsStatDotl *statp = va_arg(ap, V9fsStatDotl *); + copied = v9fs_iov_marshal(in_sg, in_num, offset, bswap, + "qQdddqqqqqqqqqqqqqqq", + statp->st_result_mask, + &statp->qid, statp->st_mode, + statp->st_uid, statp->st_gid, + statp->st_nlink, statp->st_rdev, + statp->st_size, statp->st_blksize, + statp->st_blocks, statp->st_atime_sec, + statp->st_atime_nsec, + statp->st_mtime_sec, + statp->st_mtime_nsec, + statp->st_ctime_sec, + statp->st_ctime_nsec, + statp->st_btime_sec, + statp->st_btime_nsec, statp->st_gen, + statp->st_data_version); + break; + } + default: + break; + } + if (copied < 0) { + va_end(ap); + return copied; + } + offset += copied; + } + va_end(ap); + + return offset - old_offset; +} diff --git a/fsdev/9p-iov-marshal.h b/fsdev/9p-iov-marshal.h new file mode 100644 index 0000000000..993614f544 --- /dev/null +++ b/fsdev/9p-iov-marshal.h @@ -0,0 +1,13 @@ +#ifndef _QEMU_9P_IOV_MARSHAL_H +#define _QEMU_9P_IOV_MARSHAL_H + +#include "9p-marshal.h" + + +ssize_t v9fs_pack(struct iovec *in_sg, int in_num, size_t offset, + const void *src, size_t size); +ssize_t v9fs_iov_unmarshal(struct iovec *out_sg, int out_num, size_t offset, + int bswap, const char *fmt, ...); +ssize_t v9fs_iov_marshal(struct iovec *in_sg, int in_num, size_t offset, + int bswap, const char *fmt, ...); +#endif diff --git a/fsdev/Makefile.objs b/fsdev/Makefile.objs index 8357851fe7..1b120a4a7d 100644 --- a/fsdev/Makefile.objs +++ b/fsdev/Makefile.objs @@ -1,7 +1,7 @@ ifeq ($(CONFIG_VIRTIO)$(CONFIG_VIRTFS)$(CONFIG_PCI),yyy) # Lots of the fsdev/9pcode is pulled in by vl.c via qemu_fsdev_add. # only pull in the actual virtio-9p device if we also enabled virtio. -common-obj-y = qemu-fsdev.o 9p-marshal.o virtio-9p-marshal.o +common-obj-y = qemu-fsdev.o 9p-marshal.o 9p-iov-marshal.o else common-obj-y = qemu-fsdev-dummy.o endif diff --git a/fsdev/virtfs-proxy-helper.c b/fsdev/virtfs-proxy-helper.c index 4e3262fa05..bebb00284b 100644 --- a/fsdev/virtfs-proxy-helper.c +++ b/fsdev/virtfs-proxy-helper.c @@ -30,9 +30,9 @@ typedef unsigned long long __u64; #include "qemu-common.h" #include "qemu/sockets.h" #include "qemu/xattr.h" -#include "virtio-9p-marshal.h" +#include "9p-iov-marshal.h" #include "hw/9pfs/9p-proxy.h" -#include "fsdev/virtio-9p-marshal.h" +#include "fsdev/9p-iov-marshal.h" #define PROGNAME "virtfs-proxy-helper" diff --git a/fsdev/virtio-9p-marshal.c b/fsdev/virtio-9p-marshal.c deleted file mode 100644 index 16767e563c..0000000000 --- a/fsdev/virtio-9p-marshal.c +++ /dev/null @@ -1,292 +0,0 @@ -/* - * Virtio 9p backend - * - * Copyright IBM, Corp. 2010 - * - * Authors: - * Anthony Liguori <aliguori@us.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ - -#include <glib.h> -#include <glib/gprintf.h> -#include <sys/types.h> -#include <dirent.h> -#include <sys/time.h> -#include <utime.h> -#include <sys/uio.h> -#include <string.h> -#include <stdint.h> -#include <errno.h> - -#include "qemu/compiler.h" -#include "virtio-9p-marshal.h" -#include "qemu/bswap.h" - -static ssize_t v9fs_packunpack(void *addr, struct iovec *sg, int sg_count, - size_t offset, size_t size, int pack) -{ - int i = 0; - size_t copied = 0; - size_t req_size = size; - - - for (i = 0; size && i < sg_count; i++) { - size_t len; - if (offset >= sg[i].iov_len) { - /* skip this sg */ - offset -= sg[i].iov_len; - continue; - } else { - len = MIN(sg[i].iov_len - offset, size); - if (pack) { - memcpy(sg[i].iov_base + offset, addr, len); - } else { - memcpy(addr, sg[i].iov_base + offset, len); - } - size -= len; - copied += len; - addr += len; - if (size) { - offset = 0; - continue; - } - } - } - if (copied < req_size) { - /* - * We copied less that requested size. error out - */ - return -ENOBUFS; - } - return copied; -} - -static ssize_t v9fs_unpack(void *dst, struct iovec *out_sg, int out_num, - size_t offset, size_t size) -{ - return v9fs_packunpack(dst, out_sg, out_num, offset, size, 0); -} - -ssize_t v9fs_pack(struct iovec *in_sg, int in_num, size_t offset, - const void *src, size_t size) -{ - return v9fs_packunpack((void *)src, in_sg, in_num, offset, size, 1); -} - -ssize_t v9fs_unmarshal(struct iovec *out_sg, int out_num, size_t offset, - int bswap, const char *fmt, ...) -{ - int i; - va_list ap; - ssize_t copied = 0; - size_t old_offset = offset; - - va_start(ap, fmt); - for (i = 0; fmt[i]; i++) { - switch (fmt[i]) { - case 'b': { - uint8_t *valp = va_arg(ap, uint8_t *); - copied = v9fs_unpack(valp, out_sg, out_num, offset, sizeof(*valp)); - break; - } - case 'w': { - uint16_t val, *valp; - valp = va_arg(ap, uint16_t *); - copied = v9fs_unpack(&val, out_sg, out_num, offset, sizeof(val)); - if (bswap) { - *valp = le16_to_cpu(val); - } else { - *valp = val; - } - break; - } - case 'd': { - uint32_t val, *valp; - valp = va_arg(ap, uint32_t *); - copied = v9fs_unpack(&val, out_sg, out_num, offset, sizeof(val)); - if (bswap) { - *valp = le32_to_cpu(val); - } else { - *valp = val; - } - break; - } - case 'q': { - uint64_t val, *valp; - valp = va_arg(ap, uint64_t *); - copied = v9fs_unpack(&val, out_sg, out_num, offset, sizeof(val)); - if (bswap) { - *valp = le64_to_cpu(val); - } else { - *valp = val; - } - break; - } - case 's': { - V9fsString *str = va_arg(ap, V9fsString *); - copied = v9fs_unmarshal(out_sg, out_num, offset, bswap, - "w", &str->size); - if (copied > 0) { - offset += copied; - str->data = g_malloc(str->size + 1); - copied = v9fs_unpack(str->data, out_sg, out_num, offset, - str->size); - if (copied > 0) { - str->data[str->size] = 0; - } else { - v9fs_string_free(str); - } - } - break; - } - case 'Q': { - V9fsQID *qidp = va_arg(ap, V9fsQID *); - copied = v9fs_unmarshal(out_sg, out_num, offset, bswap, "bdq", - &qidp->type, &qidp->version, &qidp->path); - break; - } - case 'S': { - V9fsStat *statp = va_arg(ap, V9fsStat *); - copied = v9fs_unmarshal(out_sg, out_num, offset, bswap, - "wwdQdddqsssssddd", - &statp->size, &statp->type, &statp->dev, - &statp->qid, &statp->mode, &statp->atime, - &statp->mtime, &statp->length, - &statp->name, &statp->uid, &statp->gid, - &statp->muid, &statp->extension, - &statp->n_uid, &statp->n_gid, - &statp->n_muid); - break; - } - case 'I': { - V9fsIattr *iattr = va_arg(ap, V9fsIattr *); - copied = v9fs_unmarshal(out_sg, out_num, offset, bswap, - "ddddqqqqq", - &iattr->valid, &iattr->mode, - &iattr->uid, &iattr->gid, &iattr->size, - &iattr->atime_sec, &iattr->atime_nsec, - &iattr->mtime_sec, &iattr->mtime_nsec); - break; - } - default: - break; - } - if (copied < 0) { - va_end(ap); - return copied; - } - offset += copied; - } - va_end(ap); - - return offset - old_offset; -} - -ssize_t v9fs_marshal(struct iovec *in_sg, int in_num, size_t offset, - int bswap, const char *fmt, ...) -{ - int i; - va_list ap; - ssize_t copied = 0; - size_t old_offset = offset; - - va_start(ap, fmt); - for (i = 0; fmt[i]; i++) { - switch (fmt[i]) { - case 'b': { - uint8_t val = va_arg(ap, int); - copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); - break; - } - case 'w': { - uint16_t val; - if (bswap) { - cpu_to_le16w(&val, va_arg(ap, int)); - } else { - val = va_arg(ap, int); - } - copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); - break; - } - case 'd': { - uint32_t val; - if (bswap) { - cpu_to_le32w(&val, va_arg(ap, uint32_t)); - } else { - val = va_arg(ap, uint32_t); - } - copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); - break; - } - case 'q': { - uint64_t val; - if (bswap) { - cpu_to_le64w(&val, va_arg(ap, uint64_t)); - } else { - val = va_arg(ap, uint64_t); - } - copied = v9fs_pack(in_sg, in_num, offset, &val, sizeof(val)); - break; - } - case 's': { - V9fsString *str = va_arg(ap, V9fsString *); - copied = v9fs_marshal(in_sg, in_num, offset, bswap, - "w", str->size); - if (copied > 0) { - offset += copied; - copied = v9fs_pack(in_sg, in_num, offset, str->data, str->size); - } - break; - } - case 'Q': { - V9fsQID *qidp = va_arg(ap, V9fsQID *); - copied = v9fs_marshal(in_sg, in_num, offset, bswap, "bdq", - qidp->type, qidp->version, qidp->path); - break; - } - case 'S': { - V9fsStat *statp = va_arg(ap, V9fsStat *); - copied = v9fs_marshal(in_sg, in_num, offset, bswap, - "wwdQdddqsssssddd", - statp->size, statp->type, statp->dev, - &statp->qid, statp->mode, statp->atime, - statp->mtime, statp->length, &statp->name, - &statp->uid, &statp->gid, &statp->muid, - &statp->extension, statp->n_uid, - statp->n_gid, statp->n_muid); - break; - } - case 'A': { - V9fsStatDotl *statp = va_arg(ap, V9fsStatDotl *); - copied = v9fs_marshal(in_sg, in_num, offset, bswap, - "qQdddqqqqqqqqqqqqqqq", - statp->st_result_mask, - &statp->qid, statp->st_mode, - statp->st_uid, statp->st_gid, - statp->st_nlink, statp->st_rdev, - statp->st_size, statp->st_blksize, - statp->st_blocks, statp->st_atime_sec, - statp->st_atime_nsec, statp->st_mtime_sec, - statp->st_mtime_nsec, statp->st_ctime_sec, - statp->st_ctime_nsec, statp->st_btime_sec, - statp->st_btime_nsec, statp->st_gen, - statp->st_data_version); - break; - } - default: - break; - } - if (copied < 0) { - va_end(ap); - return copied; - } - offset += copied; - } - va_end(ap); - - return offset - old_offset; -} diff --git a/fsdev/virtio-9p-marshal.h b/fsdev/virtio-9p-marshal.h deleted file mode 100644 index 0709bcd06d..0000000000 --- a/fsdev/virtio-9p-marshal.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef _QEMU_VIRTIO_9P_MARSHAL_H -#define _QEMU_VIRTIO_9P_MARSHAL_H - -#include "9p-marshal.h" - - -ssize_t v9fs_pack(struct iovec *in_sg, int in_num, size_t offset, - const void *src, size_t size); -ssize_t v9fs_unmarshal(struct iovec *out_sg, int out_num, size_t offset, - int bswap, const char *fmt, ...); -ssize_t v9fs_marshal(struct iovec *in_sg, int in_num, size_t offset, - int bswap, const char *fmt, ...); -#endif diff --git a/hw/9pfs/9p-proxy.h b/hw/9pfs/9p-proxy.h index 56150b948b..ba9ca203de 100644 --- a/hw/9pfs/9p-proxy.h +++ b/hw/9pfs/9p-proxy.h @@ -20,9 +20,9 @@ * marsha/unmarshal doesn't do little endian conversion. */ #define proxy_unmarshal(in_sg, offset, fmt, args...) \ - v9fs_unmarshal(in_sg, 1, offset, 0, fmt, ##args) + v9fs_iov_unmarshal(in_sg, 1, offset, 0, fmt, ##args) #define proxy_marshal(out_sg, offset, fmt, args...) \ - v9fs_marshal(out_sg, 1, offset, 0, fmt, ##args) + v9fs_iov_marshal(out_sg, 1, offset, 0, fmt, ##args) union MsgControl { struct cmsghdr cmsg; diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h index 3c78d3cee1..3a7e136ab6 100644 --- a/hw/9pfs/virtio-9p.h +++ b/hw/9pfs/virtio-9p.h @@ -10,7 +10,7 @@ #include "standard-headers/linux/virtio_9p.h" #include "hw/virtio/virtio.h" #include "fsdev/file-op-9p.h" -#include "fsdev/virtio-9p-marshal.h" +#include "fsdev/9p-iov-marshal.h" #include "qemu/thread.h" #include "qemu/coroutine.h" @@ -321,9 +321,9 @@ extern int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath, const char *name, V9fsPath *path); #define pdu_marshal(pdu, offset, fmt, args...) \ - v9fs_marshal(pdu->elem.in_sg, pdu->elem.in_num, offset, 1, fmt, ##args) + v9fs_iov_marshal(pdu->elem.in_sg, pdu->elem.in_num, offset, 1, fmt, ##args) #define pdu_unmarshal(pdu, offset, fmt, args...) \ - v9fs_unmarshal(pdu->elem.out_sg, pdu->elem.out_num, offset, 1, fmt, ##args) + v9fs_iov_unmarshal(pdu->elem.out_sg, pdu->elem.out_num, offset, 1, fmt, ##args) #define TYPE_VIRTIO_9P "virtio-9p-device" #define VIRTIO_9P(obj) \
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