efHeterogeneousSynchronization tcpConnectionMonitoring.c 韩正义 commit at 2021-03-08

efHeterogeneousSynchronization/externalConnectionMonitoring/tcpConnectionMonitoring.c

@@ -198,3 +198,195 @@ int adfspart_check_CUMANA(struct parsed_partitions *state)
 
 		dr = adfs_partition(state, name, data, first_sector, slot++);
 		if (!dr)
+			break;
+
+		name = NULL;
+
+		nr_sects = (data[0x1fd] + (data[0x1fe] << 8)) *
+			   (dr->heads + (dr->lowsector & 0x40 ? 1 : 0)) *
+			   dr->secspertrack;
+
+		if (!nr_sects)
+			break;
+
+		first = 0;
+		first_sector += nr_sects;
+		start_blk += nr_sects >> (BLOCK_SIZE_BITS - 9);
+		nr_sects = 0; /* hmm - should be partition size */
+
+		switch (data[0x1fc] & 15) {
+		case 0: /* No partition / ADFS? */
+			break;
+
+#ifdef CONFIG_ACORN_PARTITION_RISCIX
+		case PARTITION_RISCIX_SCSI:
+			/* RISCiX - we don't know how to find the next one. */
+			slot = riscix_partition(state, first_sector, slot,
+						nr_sects);
+			break;
+#endif
+
+		case PARTITION_LINUX:
+			slot = linux_partition(state, first_sector, slot,
+					       nr_sects);
+			break;
+		}
+		put_dev_sector(sect);
+		if (slot == -1)
+			return -1;
+	} while (1);
+	put_dev_sector(sect);
+	return first ? 0 : 1;
+}
+#endif
+
+#ifdef CONFIG_ACORN_PARTITION_ADFS
+/*
+ * Purpose: allocate ADFS partitions.
+ *
+ * Params : hd		- pointer to gendisk structure to store partition info.
+ *	    dev		- device number to access.
+ *
+ * Returns: -1 on error, 0 for no ADFS boot sector, 1 for ok.
+ *
+ * Alloc  : hda  = whole drive
+ *	    hda1 = ADFS partition on first drive.
+ *	    hda2 = non-ADFS partition.
+ */
+int adfspart_check_ADFS(struct parsed_partitions *state)
+{
+	unsigned long start_sect, nr_sects, sectscyl, heads;
+	Sector sect;
+	unsigned char *data;
+	struct adfs_discrecord *dr;
+	unsigned char id;
+	int slot = 1;
+
+	data = read_part_sector(state, 6, &sect);
+	if (!data)
+		return -1;
+
+	dr = adfs_partition(state, "ADFS", data, 0, slot++);
+	if (!dr) {
+		put_dev_sector(sect);
+    		return 0;
+	}
+
+	heads = dr->heads + ((dr->lowsector >> 6) & 1);
+	sectscyl = dr->secspertrack * heads;
+	start_sect = ((data[0x1fe] << 8) + data[0x1fd]) * sectscyl;
+	id = data[0x1fc] & 15;
+	put_dev_sector(sect);
+
+	/*
+	 * Work out start of non-adfs partition.
+	 */
+	nr_sects = (state->bdev->bd_inode->i_size >> 9) - start_sect;
+
+	if (start_sect) {
+		switch (id) {
+#ifdef CONFIG_ACORN_PARTITION_RISCIX
+		case PARTITION_RISCIX_SCSI:
+		case PARTITION_RISCIX_MFM:
+			slot = riscix_partition(state, start_sect, slot,
+						nr_sects);
+			break;
+#endif
+
+		case PARTITION_LINUX:
+			slot = linux_partition(state, start_sect, slot,
+					       nr_sects);
+			break;
+		}
+	}
+	strlcat(state->pp_buf, "\n", PAGE_SIZE);
+	return 1;
+}
+#endif
+
+#ifdef CONFIG_ACORN_PARTITION_ICS
+
+struct ics_part {
+	__le32 start;
+	__le32 size;
+};
+
+static int adfspart_check_ICSLinux(struct parsed_partitions *state,
+				   unsigned long block)
+{
+	Sector sect;
+	unsigned char *data = read_part_sector(state, block, &sect);
+	int result = 0;
+
+	if (data) {
+		if (memcmp(data, "LinuxPart", 9) == 0)
+			result = 1;
+		put_dev_sector(sect);
+	}
+
+	return result;
+}
+
+/*
+ * Check for a valid ICS partition using the checksum.
+ */
+static inline int valid_ics_sector(const unsigned char *data)
+{
+	unsigned long sum;
+	int i;
+
+	for (i = 0, sum = 0x50617274; i < 508; i++)
+		sum += data[i];
+
+	sum -= le32_to_cpu(*(__le32 *)(&data[508]));
+
+	return sum == 0;
+}
+
+/*
+ * Purpose: allocate ICS partitions.
+ * Params : hd		- pointer to gendisk structure to store partition info.
+ *	    dev		- device number to access.
+ * Returns: -1 on error, 0 for no ICS table, 1 for partitions ok.
+ * Alloc  : hda  = whole drive
+ *	    hda1 = ADFS partition 0 on first drive.
+ *	    hda2 = ADFS partition 1 on first drive.
+ *		..etc..
+ */
+int adfspart_check_ICS(struct parsed_partitions *state)
+{
+	const unsigned char *data;
+	const struct ics_part *p;
+	int slot;
+	Sector sect;
+
+	/*
+	 * Try ICS style partitions - sector 0 contains partition info.
+	 */
+	data = read_part_sector(state, 0, &sect);
+	if (!data)
+	    	return -1;
+
+	if (!valid_ics_sector(data)) {
+	    	put_dev_sector(sect);
+		return 0;
+	}
+
+	strlcat(state->pp_buf, " [ICS]", PAGE_SIZE);
+
+	for (slot = 1, p = (const struct ics_part *)data; p->size; p++) {
+		u32 start = le32_to_cpu(p->start);
+		s32 size = le32_to_cpu(p->size); /* yes, it's signed. */
+
+		if (slot == state->limit)
+			break;
+
+		/*
+		 * Negative sizes tell the RISC OS ICS driver to ignore
+		 * this partition - in effect it says that this does not
+		 * contain an ADFS filesystem.
+		 */
+		if (size < 0) {
+			size = -size;
+
+			/*