smb3: print warning once if posix context returned on open (ab3459d8) · Commits · 戴 / test

fs/cifs/smb2pdu.c

+22 −0

Original line number	Diff line number	Diff line
		@@ -1939,6 +1939,16 @@ parse_query_id_ctxt(struct create_context cc, struct smb2_file_all_info buf)
		buf->IndexNumber = pdisk_id->DiskFileId;
		}

		static void
		parse_posix_ctxt(struct create_context cc, struct smb_posix_info pposix_inf)
		{
		/* struct smb_posix_info ppinf = (struct smb_posix_info )cc; */

		/* TODO: Need to add parsing for the context and return */
		printk_once(KERN_WARNING
		"SMB3 3.11 POSIX response context not completed yet\n");
		}

		void
		smb2_parse_contexts(struct TCP_Server_Info *server,
		struct smb2_create_rsp *rsp,
		@@ -1950,6 +1960,9 @@ smb2_parse_contexts(struct TCP_Server_Info *server,
		unsigned int next;
		unsigned int remaining;
		char *name;
		const char smb3_create_tag_posix[] = {0x93, 0xAD, 0x25, 0x50, 0x9C,
		0xB4, 0x11, 0xE7, 0xB4, 0x23, 0x83,
		0xDE, 0x96, 0x8B, 0xCD, 0x7C};

		*oplock = 0;
		data_offset = (char *)rsp + le32_to_cpu(rsp->CreateContextsOffset);
		@@ -1969,6 +1982,15 @@ smb2_parse_contexts(struct TCP_Server_Info *server,
		else if (buf && (le16_to_cpu(cc->NameLength) == 4) &&
		strncmp(name, SMB2_CREATE_QUERY_ON_DISK_ID, 4) == 0)
		parse_query_id_ctxt(cc, buf);
		else if ((le16_to_cpu(cc->NameLength) == 16)) {
		if (memcmp(name, smb3_create_tag_posix, 16) == 0)
		parse_posix_ctxt(cc, NULL);
		}
		/* else {
		cifs_dbg(FYI, "Context not matched with len %d\n",
		le16_to_cpu(cc->NameLength));
		cifs_dump_mem("Cctxt name: ", name, 4);
		} */

		next = le32_to_cpu(cc->Next);
		if (!next)

+8 −0

Original line number	Diff line number	Diff line
		@@ -1595,4 +1595,12 @@ struct smb2_file_network_open_info {

		extern char smb2_padding[7];

		/* equivalent of the contents of SMB3.1.1 POSIX open context response */
		struct smb_posix_info {
		__le32 nlink;
		__le32 reparse_tag;
		__le32 mode;
		kuid_t uid;
		kuid_t gid;
		};
		#endif /* _SMB2PDU_H */