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SUSE:SLE-12-SP4:Update
qemu-linux-user.8405
0337-9pfs-PDU-processing-functions-shoul.patch
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File 0337-9pfs-PDU-processing-functions-shoul.patch of Package qemu-linux-user.8405
From 10754f44972a87af2fb1a0f8b552456b5863e1b3 Mon Sep 17 00:00:00 2001 From: Wei Liu <wei.liu2@citrix.com> Date: Wed, 2 Dec 2015 15:00:14 +0000 Subject: [PATCH] 9pfs: PDU processing functions should start pdu_ prefix This matches naming convention of pdu_marshal and pdu_unmarshal. 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 dc295f83538e936895c0e26d817b1a123c384c82) [BR: Fix and/or infrastructure for BSC#1020427 CVE-2016-9602] Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/9pfs/virtio-9p.c | 88 ++++++++++++++++++++++----------------------- 1 file changed, 44 insertions(+), 44 deletions(-) diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c index 3aac0c8427..c7ffc1d422 100644 --- a/hw/9pfs/virtio-9p.c +++ b/hw/9pfs/virtio-9p.c @@ -563,7 +563,7 @@ static int fid_to_qid(V9fsPDU *pdu, V9fsFidState *fidp, V9fsQID *qidp) return 0; } -static V9fsPDU *alloc_pdu(V9fsState *s) +static V9fsPDU *pdu_alloc(V9fsState *s) { V9fsPDU *pdu = NULL; @@ -575,7 +575,7 @@ static V9fsPDU *alloc_pdu(V9fsState *s) return pdu; } -static void free_pdu(V9fsPDU *pdu) +static void pdu_free(V9fsPDU *pdu) { if (pdu) { V9fsState *s = pdu->s; @@ -595,7 +595,7 @@ static void free_pdu(V9fsPDU *pdu) * because we always expect to have enough space to encode * error details */ -static void complete_pdu(V9fsPDU *pdu, ssize_t len) +static void pdu_complete(V9fsPDU *pdu, ssize_t len) { int8_t id = pdu->id + 1; /* Response */ V9fsState *s = pdu->s; @@ -638,7 +638,7 @@ static void complete_pdu(V9fsPDU *pdu, ssize_t len) /* Now wakeup anybody waiting in flush for this request */ qemu_co_queue_next(&pdu->complete); - free_pdu(pdu); + pdu_free(pdu); } static mode_t v9mode_to_mode(uint32_t mode, V9fsString *extension) @@ -933,7 +933,7 @@ static void v9fs_version(void *opaque) offset += err; trace_v9fs_version_return(pdu->tag, pdu->id, s->msize, version.data); out: - complete_pdu(pdu, offset); + pdu_complete(pdu, offset); v9fs_string_free(&version); } @@ -996,7 +996,7 @@ static void v9fs_attach(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&uname); v9fs_string_free(&aname); } @@ -1042,7 +1042,7 @@ static void v9fs_stat(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static void v9fs_getattr(void *opaque) @@ -1105,7 +1105,7 @@ static void v9fs_getattr(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, retval); + pdu_complete(pdu, retval); } /* Attribute flags */ @@ -1202,7 +1202,7 @@ static void v9fs_setattr(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static int v9fs_walk_marshal(V9fsPDU *pdu, uint16_t nwnames, V9fsQID *qids) @@ -1244,7 +1244,7 @@ static void v9fs_walk(void *opaque) err = pdu_unmarshal(pdu, offset, "ddw", &fid, &newfid, &nwnames); if (err < 0) { - complete_pdu(pdu, err); + pdu_complete(pdu, err); return ; } offset += err; @@ -1312,7 +1312,7 @@ out: v9fs_path_free(&dpath); v9fs_path_free(&path); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); if (nwnames && nwnames <= P9_MAXWELEM) { for (name_idx = 0; name_idx < nwnames; name_idx++) { v9fs_string_free(&wnames[name_idx]); @@ -1429,7 +1429,7 @@ static void v9fs_open(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static void v9fs_lcreate(void *opaque) @@ -1486,7 +1486,7 @@ static void v9fs_lcreate(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); } @@ -1516,7 +1516,7 @@ static void v9fs_fsync(void *opaque) } put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static void v9fs_clunk(void *opaque) @@ -1549,7 +1549,7 @@ static void v9fs_clunk(void *opaque) err = offset; } out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static int v9fs_xattr_read(V9fsState *s, V9fsPDU *pdu, V9fsFidState *fidp, @@ -1759,7 +1759,7 @@ static void v9fs_read(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static size_t v9fs_readdir_data_size(V9fsString *name) @@ -1882,7 +1882,7 @@ static void v9fs_readdir(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, retval); + pdu_complete(pdu, retval); } static int v9fs_xattr_write(V9fsState *s, V9fsPDU *pdu, V9fsFidState *fidp, @@ -1949,7 +1949,7 @@ static void v9fs_write(void *opaque) err = pdu_unmarshal(pdu, offset, "dqd", &fid, &off, &count); if (err < 0) { - complete_pdu(pdu, err); + pdu_complete(pdu, err); return; } offset += err; @@ -2012,7 +2012,7 @@ out: put_fid(pdu, fidp); out_nofid: qemu_iovec_destroy(&qiov_full); - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static void v9fs_create(void *opaque) @@ -2179,7 +2179,7 @@ static void v9fs_create(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); v9fs_string_free(&extension); v9fs_path_free(&path); @@ -2226,7 +2226,7 @@ static void v9fs_symlink(void *opaque) out: put_fid(pdu, dfidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); v9fs_string_free(&symname); } @@ -2242,7 +2242,7 @@ static void v9fs_flush(void *opaque) err = pdu_unmarshal(pdu, offset, "w", &tag); if (err < 0) { - complete_pdu(pdu, err); + pdu_complete(pdu, err); return; } trace_v9fs_flush(pdu->tag, pdu->id, tag); @@ -2259,9 +2259,9 @@ static void v9fs_flush(void *opaque) */ qemu_co_queue_wait(&cancel_pdu->complete); cancel_pdu->cancelled = 0; - free_pdu(cancel_pdu); + pdu_free(cancel_pdu); } - complete_pdu(pdu, 7); + pdu_complete(pdu, 7); } static void v9fs_link(void *opaque) @@ -2299,7 +2299,7 @@ out: put_fid(pdu, dfidp); out_nofid: v9fs_string_free(&name); - complete_pdu(pdu, err); + pdu_complete(pdu, err); } /* Only works with path name based fid */ @@ -2344,7 +2344,7 @@ out_err: clunk_fid(pdu->s, fidp->fid); put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static void v9fs_unlinkat(void *opaque) @@ -2388,7 +2388,7 @@ out_err: put_fid(pdu, dfidp); v9fs_path_free(&path); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); } @@ -2488,7 +2488,7 @@ static void v9fs_rename(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); } @@ -2589,7 +2589,7 @@ static void v9fs_renameat(void *opaque) } out_err: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&old_name); v9fs_string_free(&new_name); } @@ -2685,7 +2685,7 @@ out: put_fid(pdu, fidp); out_nofid: v9fs_stat_free(&v9stat); - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static int v9fs_fill_statfs(V9fsState *s, V9fsPDU *pdu, struct statfs *stbuf) @@ -2764,7 +2764,7 @@ static void v9fs_statfs(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, retval); + pdu_complete(pdu, retval); } static void v9fs_mknod(void *opaque) @@ -2811,7 +2811,7 @@ static void v9fs_mknod(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); } @@ -2868,7 +2868,7 @@ out_nofid: err += offset; } trace_v9fs_lock_return(pdu->tag, pdu->id, status); - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&flock.client_id); } @@ -2917,7 +2917,7 @@ static void v9fs_getlock(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&glock.client_id); } @@ -2961,7 +2961,7 @@ static void v9fs_mkdir(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); } @@ -3067,7 +3067,7 @@ out: put_fid(pdu, xattr_fidp); } out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); } @@ -3107,7 +3107,7 @@ static void v9fs_xattrcreate(void *opaque) err = offset; put_fid(pdu, file_fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); v9fs_string_free(&name); } @@ -3147,7 +3147,7 @@ static void v9fs_readlink(void *opaque) out: put_fid(pdu, fidp); out_nofid: - complete_pdu(pdu, err); + pdu_complete(pdu, err); } static CoroutineEntry *pdu_co_handlers[] = { @@ -3190,13 +3190,13 @@ static CoroutineEntry *pdu_co_handlers[] = { static void v9fs_op_not_supp(void *opaque) { V9fsPDU *pdu = opaque; - complete_pdu(pdu, -EOPNOTSUPP); + pdu_complete(pdu, -EOPNOTSUPP); } static void v9fs_fs_ro(void *opaque) { V9fsPDU *pdu = opaque; - complete_pdu(pdu, -EROFS); + pdu_complete(pdu, -EROFS); } static inline bool is_read_only_op(V9fsPDU *pdu) @@ -3226,7 +3226,7 @@ static inline bool is_read_only_op(V9fsPDU *pdu) } } -static void submit_pdu(V9fsPDU *pdu) +static void pdu_submit(V9fsPDU *pdu) { Coroutine *co; CoroutineEntry *handler; @@ -3252,7 +3252,7 @@ void handle_9p_output(VirtIODevice *vdev, VirtQueue *vq) V9fsPDU *pdu; ssize_t len; - while ((pdu = alloc_pdu(s)) && + while ((pdu = pdu_alloc(s)) && (len = virtqueue_pop(vq, &pdu->elem)) != 0) { uint8_t *ptr; BUG_ON(pdu->elem.out_num == 0 || pdu->elem.in_num == 0); @@ -3264,9 +3264,9 @@ void handle_9p_output(VirtIODevice *vdev, VirtQueue *vq) pdu->id = ptr[4]; pdu->tag = le16_to_cpu(*(uint16_t *)(ptr + 5)); qemu_co_queue_init(&pdu->complete); - submit_pdu(pdu); + pdu_submit(pdu); } - free_pdu(pdu); + pdu_free(pdu); } static void __attribute__((__constructor__)) virtio_9p_set_fd_limit(void)
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