From 57cc992e0f9a5d729ecf3c8effc862542ef7a84e Mon Sep 17 00:00:00 2001 From: Volker Lendecke Date: Mon, 22 Oct 2007 18:14:57 +0200 Subject: Implement vfs_ea_tdb This is an option for file systems that do not implement xattrs: in lockdir/eas.tdb an array of xatts per inode is stored. It can not solve the problem that xattrs might reappear if a posix-level process deletes a file and happens to re-create it under the same name. On file systems with birthtime we might have a chance to detect this, but not with standard posix. A future version might put relief on file systems that do have xattrs but where these are severely limited in size/speed/whatever: We can put a simple marker as a native xattr, but the xattrs proper are stored in the tdb. Volker (This used to be commit 2036b4c5ad677b8a477b34b0f076febab0abff5e) --- source3/librpc/gen_ndr/ndr_xattr.c | 102 +++++++++++++++++++++++++++++++++++++ source3/librpc/gen_ndr/ndr_xattr.h | 16 ++++++ source3/librpc/gen_ndr/xattr.h | 18 +++++++ 3 files changed, 136 insertions(+) create mode 100644 source3/librpc/gen_ndr/ndr_xattr.c create mode 100644 source3/librpc/gen_ndr/ndr_xattr.h create mode 100644 source3/librpc/gen_ndr/xattr.h (limited to 'source3/librpc/gen_ndr') diff --git a/source3/librpc/gen_ndr/ndr_xattr.c b/source3/librpc/gen_ndr/ndr_xattr.c new file mode 100644 index 0000000000..29a31a12b2 --- /dev/null +++ b/source3/librpc/gen_ndr/ndr_xattr.c @@ -0,0 +1,102 @@ +/* parser auto-generated by pidl */ + +#include "includes.h" +#include "librpc/gen_ndr/ndr_xattr.h" + +_PUBLIC_ enum ndr_err_code ndr_push_tdb_xattr(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattr *r) +{ + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 4)); + { + uint32_t _flags_save_string = ndr->flags; + ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_UTF8|LIBNDR_FLAG_STR_NULLTERM); + NDR_CHECK(ndr_push_string(ndr, NDR_SCALARS, r->name)); + ndr->flags = _flags_save_string; + } + NDR_CHECK(ndr_push_DATA_BLOB(ndr, NDR_SCALARS, r->value)); + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ enum ndr_err_code ndr_pull_tdb_xattr(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattr *r) +{ + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 4)); + { + uint32_t _flags_save_string = ndr->flags; + ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_UTF8|LIBNDR_FLAG_STR_NULLTERM); + NDR_CHECK(ndr_pull_string(ndr, NDR_SCALARS, &r->name)); + ndr->flags = _flags_save_string; + } + NDR_CHECK(ndr_pull_DATA_BLOB(ndr, NDR_SCALARS, &r->value)); + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ void ndr_print_tdb_xattr(struct ndr_print *ndr, const char *name, const struct tdb_xattr *r) +{ + ndr_print_struct(ndr, name, "tdb_xattr"); + ndr->depth++; + ndr_print_string(ndr, "name", r->name); + ndr_print_DATA_BLOB(ndr, "value", r->value); + ndr->depth--; +} + +_PUBLIC_ enum ndr_err_code ndr_push_tdb_xattrs(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattrs *r) +{ + uint32_t cntr_xattrs_0; + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 4)); + NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->num_xattrs)); + for (cntr_xattrs_0 = 0; cntr_xattrs_0 < r->num_xattrs; cntr_xattrs_0++) { + NDR_CHECK(ndr_push_tdb_xattr(ndr, NDR_SCALARS, &r->xattrs[cntr_xattrs_0])); + } + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ enum ndr_err_code ndr_pull_tdb_xattrs(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattrs *r) +{ + uint32_t cntr_xattrs_0; + TALLOC_CTX *_mem_save_xattrs_0; + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 4)); + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->num_xattrs)); + NDR_PULL_ALLOC_N(ndr, r->xattrs, r->num_xattrs); + _mem_save_xattrs_0 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->xattrs, 0); + for (cntr_xattrs_0 = 0; cntr_xattrs_0 < r->num_xattrs; cntr_xattrs_0++) { + NDR_CHECK(ndr_pull_tdb_xattr(ndr, NDR_SCALARS, &r->xattrs[cntr_xattrs_0])); + } + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_xattrs_0, 0); + } + if (ndr_flags & NDR_BUFFERS) { + } + return NDR_ERR_SUCCESS; +} + +_PUBLIC_ void ndr_print_tdb_xattrs(struct ndr_print *ndr, const char *name, const struct tdb_xattrs *r) +{ + uint32_t cntr_xattrs_0; + ndr_print_struct(ndr, name, "tdb_xattrs"); + ndr->depth++; + ndr_print_uint32(ndr, "num_xattrs", r->num_xattrs); + ndr->print(ndr, "%s: ARRAY(%d)", "xattrs", r->num_xattrs); + ndr->depth++; + for (cntr_xattrs_0=0;cntr_xattrs_0num_xattrs;cntr_xattrs_0++) { + char *idx_0=NULL; + asprintf(&idx_0, "[%d]", cntr_xattrs_0); + if (idx_0) { + ndr_print_tdb_xattr(ndr, "xattrs", &r->xattrs[cntr_xattrs_0]); + free(idx_0); + } + } + ndr->depth--; + ndr->depth--; +} diff --git a/source3/librpc/gen_ndr/ndr_xattr.h b/source3/librpc/gen_ndr/ndr_xattr.h new file mode 100644 index 0000000000..a18477f347 --- /dev/null +++ b/source3/librpc/gen_ndr/ndr_xattr.h @@ -0,0 +1,16 @@ +/* header auto-generated by pidl */ + +#include "librpc/ndr/libndr.h" +#include "librpc/gen_ndr/xattr.h" + +#ifndef _HEADER_NDR_xattr +#define _HEADER_NDR_xattr + +#define NDR_XATTR_CALL_COUNT (0) +enum ndr_err_code ndr_push_tdb_xattr(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattr *r); +enum ndr_err_code ndr_pull_tdb_xattr(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattr *r); +void ndr_print_tdb_xattr(struct ndr_print *ndr, const char *name, const struct tdb_xattr *r); +enum ndr_err_code ndr_push_tdb_xattrs(struct ndr_push *ndr, int ndr_flags, const struct tdb_xattrs *r); +enum ndr_err_code ndr_pull_tdb_xattrs(struct ndr_pull *ndr, int ndr_flags, struct tdb_xattrs *r); +void ndr_print_tdb_xattrs(struct ndr_print *ndr, const char *name, const struct tdb_xattrs *r); +#endif /* _HEADER_NDR_xattr */ diff --git a/source3/librpc/gen_ndr/xattr.h b/source3/librpc/gen_ndr/xattr.h new file mode 100644 index 0000000000..ee30376be8 --- /dev/null +++ b/source3/librpc/gen_ndr/xattr.h @@ -0,0 +1,18 @@ +/* header auto-generated by pidl */ + +#include + +#ifndef _HEADER_xattr +#define _HEADER_xattr + +struct tdb_xattr { + const char * name;/* [flag(LIBNDR_FLAG_STR_UTF8|LIBNDR_FLAG_STR_NULLTERM)] */ + DATA_BLOB value; +}/* [public] */; + +struct tdb_xattrs { + uint32_t num_xattrs; + struct tdb_xattr *xattrs; +}/* [public] */; + +#endif /* _HEADER_xattr */ -- cgit