[v2,20/21] xfsprogs: Add log item printing for ATTRI and ATTRD
diff mbox series

Message ID 20190905221855.17555-21-allison.henderson@oracle.com
State New
Headers show
Series
  • Delayed Attributes
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Commit Message

Allison Collins Sept. 5, 2019, 10:18 p.m. UTC
From: Allison Henderson <allison.henderson@oracle.com>

This patch implements a new set of log printing functions to
print the ATTRI and ATTRD items and vectors in the log.  These
will be used during log dump and log recover operations.

Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Allison Collins <allison.henderson@oracle.com>
---
 logprint/log_misc.c      |  31 +++++++-
 logprint/log_print_all.c |  12 +++
 logprint/log_redo.c      | 197 +++++++++++++++++++++++++++++++++++++++++++++++
 logprint/logprint.h      |   9 +++
 4 files changed, 248 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/logprint/log_misc.c b/logprint/log_misc.c
index c325f04..7b2055d 100644
--- a/logprint/log_misc.c
+++ b/logprint/log_misc.c
@@ -54,11 +54,29 @@  print_stars(void)
 	   "***********************************\n");
 }	/* print_stars */
 
+void
+print_hex_dump(char *ptr, int len) {
+	int i = 0;
+
+	for (i = 0; i < len; i++) {
+		if (i % 16 == 0)
+			printf("%08x ", i);
+
+		printf("%02x", ptr[i]);
+
+		if ((i+1)%16 == 0)
+			printf("\n");
+		else if ((i+1)%2 == 0)
+			printf(" ");
+	}
+	printf("\n");
+}
+
 /*
  * Given a pointer to a data segment, print out the data as if it were
  * a log operation header.
  */
-static void
+void
 xlog_print_op_header(xlog_op_header_t	*op_head,
 		     int		i,
 		     char		**ptr)
@@ -949,6 +967,17 @@  xlog_print_record(
 					be32_to_cpu(op_head->oh_len));
 			break;
 		    }
+		    case XFS_LI_ATTRI: {
+                        skip = xlog_print_trans_attri(&ptr,
+                                        be32_to_cpu(op_head->oh_len),
+                                        &i);
+                        break;
+                    }
+                    case XFS_LI_ATTRD: {
+                        skip = xlog_print_trans_attrd(&ptr,
+                                        be32_to_cpu(op_head->oh_len));
+                        break;
+                    }
 		    case XFS_LI_RUI: {
 			skip = xlog_print_trans_rui(&ptr,
 					be32_to_cpu(op_head->oh_len),
diff --git a/logprint/log_print_all.c b/logprint/log_print_all.c
index eafffe2..f794a68 100644
--- a/logprint/log_print_all.c
+++ b/logprint/log_print_all.c
@@ -400,6 +400,12 @@  xlog_recover_print_logitem(
 	case XFS_LI_EFI:
 		xlog_recover_print_efi(item);
 		break;
+	case XFS_LI_ATTRD:
+		xlog_recover_print_attrd(item);
+		break;
+	case XFS_LI_ATTRI:
+		xlog_recover_print_attri(item);
+		break;
 	case XFS_LI_RUD:
 		xlog_recover_print_rud(item);
 		break;
@@ -452,6 +458,12 @@  xlog_recover_print_item(
 	case XFS_LI_EFI:
 		printf("EFI");
 		break;
+	case XFS_LI_ATTRD:
+		printf("ATTRD");
+		break;
+	case XFS_LI_ATTRI:
+		printf("ATTRI");
+		break;
 	case XFS_LI_RUD:
 		printf("RUD");
 		break;
diff --git a/logprint/log_redo.c b/logprint/log_redo.c
index f1f690e..b2b3d8e 100644
--- a/logprint/log_redo.c
+++ b/logprint/log_redo.c
@@ -8,6 +8,7 @@ 
 #include "libxlog.h"
 
 #include "logprint.h"
+#include "xfs_attr_item.h"
 
 /* Extent Free Items */
 
@@ -653,3 +654,199 @@  xlog_recover_print_bud(
 	f = item->ri_buf[0].i_addr;
 	xlog_print_trans_bud(&f, sizeof(struct xfs_bud_log_format));
 }
+
+/* Attr Items */
+
+static int
+xfs_attri_copy_log_format(
+	char				*buf,
+	uint				len,
+	struct xfs_attri_log_format	*dst_attri_fmt)
+{
+	uint dst_len = sizeof(struct xfs_attri_log_format);
+
+	if (len == dst_len) {
+		memcpy((char *)dst_attri_fmt, buf, len);
+		return 0;
+	}
+
+	fprintf(stderr, _("%s: bad size of attri format: %u; expected %u\n"),
+		progname, len, dst_len);
+	return 1;
+}
+
+int
+xlog_print_trans_attri(
+	char				**ptr,
+	uint				src_len,
+	int				*i)
+{
+	struct xfs_attri_log_format	*src_f = NULL;
+	xlog_op_header_t		*head = NULL;
+	uint				dst_len;
+	int				error = 0;
+
+	dst_len = sizeof(struct xfs_attri_log_format);
+	if (src_len != dst_len) {
+		fprintf(stderr, _("%s: bad size of attri format: %u; expected %u\n"),
+				progname, src_len, dst_len);
+		return 1;
+	}
+
+	/*
+	 * memmove to ensure 8-byte alignment for the long longs in
+	 * xfs_attri_log_format_t structure
+	 */
+	if ((src_f = (struct xfs_attri_log_format *)malloc(src_len)) == NULL) {
+		fprintf(stderr, _("%s: xlog_print_trans_attri: malloc failed\n"),
+				progname);
+		exit(1);
+	}
+	memmove((char*)src_f, *ptr, src_len);
+	*ptr += src_len;
+
+	printf(_("ATTRI:  #regs: %d	name_len: %d, value_len: %d  id: 0x%llx\n"),
+		src_f->alfi_size, src_f->alfi_name_len, src_f->alfi_value_len,
+				(unsigned long long)src_f->alfi_id);
+
+	if (src_f->alfi_name_len > 0) {
+		printf(_("\n"));
+		(*i)++;
+		head = (xlog_op_header_t *)*ptr;
+		xlog_print_op_header(head, *i, ptr);
+		error = xlog_print_trans_attri_name(ptr, be32_to_cpu(head->oh_len));
+		if (error)
+			goto error;
+	}
+
+	if (src_f->alfi_value_len > 0) {
+		printf(_("\n"));
+		(*i)++;
+		head = (xlog_op_header_t *)*ptr;
+		xlog_print_op_header(head, *i, ptr);
+		error = xlog_print_trans_attri_value(ptr, be32_to_cpu(head->oh_len),
+				src_f->alfi_value_len);
+	}
+error:
+	free(src_f);
+
+	return error;
+}	/* xlog_print_trans_attri */
+
+int
+xlog_print_trans_attri_name(
+	char				**ptr,
+	uint				src_len)
+{
+	printf(_("ATTRI:  name len:%u\n"), src_len);
+	print_hex_dump(*ptr, src_len);
+
+	*ptr += src_len;
+
+	return 0;
+}	/* xlog_print_trans_attri */
+
+int
+xlog_print_trans_attri_value(
+	char				**ptr,
+	uint				src_len,
+	int				value_len)
+{
+	int len = value_len;
+
+	if (len > MAX_ATTR_VAL_PRINT)
+		len = MAX_ATTR_VAL_PRINT;
+
+	printf(_("ATTRI:  value len:%u\n"), value_len);
+	print_hex_dump(*ptr, len);
+
+	*ptr += src_len;
+
+	return 0;
+}	/* xlog_print_trans_attri_value */
+
+void
+xlog_recover_print_attri(
+	xlog_recover_item_t	*item)
+{
+	struct xfs_attri_log_format	*f, *src_f = NULL;
+	uint				src_len, dst_len;
+
+	int				region = 0;
+
+	src_f = (struct xfs_attri_log_format *)item->ri_buf[0].i_addr;
+	src_len = item->ri_buf[region].i_len;
+
+	/*
+	 * An xfs_attri_log_format structure contains a attribute name and
+	 * variable length value  as the last field.
+	 */
+	dst_len = sizeof(struct xfs_attri_log_format);
+
+	if ((f = ((struct xfs_attri_log_format *)malloc(dst_len))) == NULL) {
+		fprintf(stderr, _("%s: xlog_recover_print_attri: malloc failed\n"),
+			progname);
+		exit(1);
+	}
+	if (xfs_attri_copy_log_format((char*)src_f, src_len, f))
+		goto out;
+
+	printf(_("ATTRI:  #regs: %d	name_len: %d, value_len: %d  id: 0x%llx\n"),
+		f->alfi_size, f->alfi_name_len, f->alfi_value_len, (unsigned long long)f->alfi_id);
+
+	if (f->alfi_name_len > 0) {
+		region++;
+		printf(_("ATTRI:  name len:%u\n"), f->alfi_name_len);
+		print_hex_dump((char *)item->ri_buf[region].i_addr,
+			       f->alfi_name_len);
+	}
+
+	if (f->alfi_value_len > 0) {
+		int len = f->alfi_value_len;
+
+		if (len > MAX_ATTR_VAL_PRINT)
+			len = MAX_ATTR_VAL_PRINT;
+
+		region++;
+		printf(_("ATTRI:  value len:%u\n"), f->alfi_value_len);
+		print_hex_dump((char *)item->ri_buf[region].i_addr, len);
+	}
+
+out:
+	free(f);
+
+}
+
+int
+xlog_print_trans_attrd(char **ptr, uint len)
+{
+	struct xfs_attrd_log_format *f;
+	struct xfs_attrd_log_format lbuf;
+	uint core_size = sizeof(struct xfs_attrd_log_format);
+
+	memcpy(&lbuf, *ptr, MIN(core_size, len));
+	f = &lbuf;
+	*ptr += len;
+	if (len >= core_size) {
+		printf(_("ATTRD:  #regs: %d	id: 0x%llx\n"),
+			f->alfd_size,
+			(unsigned long long)f->alfd_alf_id);
+		return 0;
+	} else {
+		printf(_("ATTRD: Not enough data to decode further\n"));
+		return 1;
+	}
+}	/* xlog_print_trans_attrd */
+
+void
+xlog_recover_print_attrd(
+	xlog_recover_item_t		*item)
+{
+	struct xfs_attrd_log_format	*f;
+
+	f = (struct xfs_attrd_log_format *)item->ri_buf[0].i_addr;
+
+	printf(_("	ATTRD:  #regs: %d	id: 0x%llx\n"),
+		f->alfd_size,
+		(unsigned long long)f->alfd_alf_id);
+}
diff --git a/logprint/logprint.h b/logprint/logprint.h
index 98ac0d4..c3d1ea5 100644
--- a/logprint/logprint.h
+++ b/logprint/logprint.h
@@ -28,6 +28,7 @@  extern void xfs_log_print_trans(struct xlog *, int);
 extern void print_xlog_record_line(void);
 extern void print_xlog_op_line(void);
 extern void print_stars(void);
+extern void print_hex_dump(char* ptr, int len);
 
 extern struct xfs_inode_log_format *
 	xfs_inode_item_format_convert(char *, uint, struct xfs_inode_log_format *);
@@ -52,4 +53,12 @@  extern void xlog_recover_print_bui(struct xlog_recover_item *item);
 extern int xlog_print_trans_bud(char **ptr, uint len);
 extern void xlog_recover_print_bud(struct xlog_recover_item *item);
 
+#define MAX_ATTR_VAL_PRINT	128
+
+extern int xlog_print_trans_attri(char **ptr, uint src_len, int *i);
+extern int xlog_print_trans_attri_name(char **ptr, uint src_len);
+extern int xlog_print_trans_attri_value(char **ptr, uint src_len, int value_len);
+extern void xlog_recover_print_attri(xlog_recover_item_t *item);
+extern int xlog_print_trans_attrd(char **ptr, uint len);
+extern void xlog_recover_print_attrd(xlog_recover_item_t *item);
 #endif	/* LOGPRINT_H */