diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2013-04-20 09:16:44 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-04-20 09:16:44 -0700 |
| commit | f53f292eeaa234615c31a1306babe703fc4263f2 (patch) | |
| tree | 707b0933a20f7dc05495e974243a23b5c9f8c918 /net/9p/protocol.c | |
| parent | 15b9c359f288b09003cb70f7ed204affc0c6614d (diff) | |
| parent | a9499fa7cd3fd4824a7202d00c766b269fa3bda6 (diff) | |
Merge remote-tracking branch 'efi/chainsaw' into x86/efi
Resolved Conflicts:
drivers/firmware/efivars.c
fs/efivarsfs/file.c
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'net/9p/protocol.c')
| -rw-r--r-- | net/9p/protocol.c | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/net/9p/protocol.c b/net/9p/protocol.c index 3d33ecf13327..ab9127ec5b7a 100644 --- a/net/9p/protocol.c +++ b/net/9p/protocol.c @@ -85,6 +85,8 @@ pdu_write_u(struct p9_fcall *pdu, const char __user *udata, size_t size) d - int32_t q - int64_t s - string + u - numeric uid + g - numeric gid S - stat Q - qid D - data blob (int32_t size followed by void *, results are not freed) @@ -163,6 +165,26 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt, (*sptr)[len] = 0; } break; + case 'u': { + kuid_t *uid = va_arg(ap, kuid_t *); + __le32 le_val; + if (pdu_read(pdu, &le_val, sizeof(le_val))) { + errcode = -EFAULT; + break; + } + *uid = make_kuid(&init_user_ns, + le32_to_cpu(le_val)); + } break; + case 'g': { + kgid_t *gid = va_arg(ap, kgid_t *); + __le32 le_val; + if (pdu_read(pdu, &le_val, sizeof(le_val))) { + errcode = -EFAULT; + break; + } + *gid = make_kgid(&init_user_ns, + le32_to_cpu(le_val)); + } break; case 'Q':{ struct p9_qid *qid = va_arg(ap, struct p9_qid *); @@ -177,11 +199,12 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt, va_arg(ap, struct p9_wstat *); memset(stbuf, 0, sizeof(struct p9_wstat)); - stbuf->n_uid = stbuf->n_gid = stbuf->n_muid = - -1; + stbuf->n_uid = stbuf->n_muid = INVALID_UID; + stbuf->n_gid = INVALID_GID; + errcode = p9pdu_readf(pdu, proto_version, - "wwdQdddqssss?sddd", + "wwdQdddqssss?sugu", &stbuf->size, &stbuf->type, &stbuf->dev, &stbuf->qid, &stbuf->mode, &stbuf->atime, @@ -294,7 +317,7 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt, memset(stbuf, 0, sizeof(struct p9_stat_dotl)); errcode = p9pdu_readf(pdu, proto_version, - "qQdddqqqqqqqqqqqqqqq", + "qQdugqqqqqqqqqqqqqqq", &stbuf->st_result_mask, &stbuf->qid, &stbuf->st_mode, @@ -377,6 +400,20 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt, errcode = -EFAULT; } break; + case 'u': { + kuid_t uid = va_arg(ap, kuid_t); + __le32 val = cpu_to_le32( + from_kuid(&init_user_ns, uid)); + if (pdu_write(pdu, &val, sizeof(val))) + errcode = -EFAULT; + } break; + case 'g': { + kgid_t gid = va_arg(ap, kgid_t); + __le32 val = cpu_to_le32( + from_kgid(&init_user_ns, gid)); + if (pdu_write(pdu, &val, sizeof(val))) + errcode = -EFAULT; + } break; case 'Q':{ const struct p9_qid *qid = va_arg(ap, const struct p9_qid *); @@ -390,7 +427,7 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt, va_arg(ap, const struct p9_wstat *); errcode = p9pdu_writef(pdu, proto_version, - "wwdQdddqssss?sddd", + "wwdQdddqssss?sugu", stbuf->size, stbuf->type, stbuf->dev, &stbuf->qid, stbuf->mode, stbuf->atime, @@ -468,7 +505,7 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt, struct p9_iattr_dotl *); errcode = p9pdu_writef(pdu, proto_version, - "ddddqqqqq", + "ddugqqqqq", p9attr->valid, p9attr->mode, p9attr->uid, |