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Commit | Line | Data |
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1ccea77e | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
0945b4fe | 2 | /* |
30f05546 | 3 | * Copyright (C) 2011 matt mooney <mfm@muteddisk.com> |
4 | * 2005-2007 Takahiro Hirofuchi | |
0945b4fe TH |
5 | */ |
6 | ||
4fd83e84 | 7 | #include <errno.h> |
4cbab52d | 8 | #include <stdio.h> |
9 | #include <string.h> | |
10 | ||
e9837bbb | 11 | #include "usbip_common.h" |
0945b4fe | 12 | #include "utils.h" |
1e940319 | 13 | #include "sysfs_utils.h" |
0945b4fe | 14 | |
e9837bbb | 15 | int modify_match_busid(char *busid, int add) |
16 | { | |
30f05546 | 17 | char attr_name[] = "match_busid"; |
1e940319 | 18 | char command[SYSFS_BUS_ID_SIZE + 4]; |
30f05546 | 19 | char match_busid_attr_path[SYSFS_PATH_MAX]; |
1e940319 | 20 | int rc; |
544c4605 | 21 | int cmd_size; |
e9837bbb | 22 | |
30f05546 | 23 | snprintf(match_busid_attr_path, sizeof(match_busid_attr_path), |
1e940319 VM |
24 | "%s/%s/%s/%s/%s/%s", SYSFS_MNT_PATH, SYSFS_BUS_NAME, |
25 | SYSFS_BUS_TYPE, SYSFS_DRIVERS_NAME, USBIP_HOST_DRV_NAME, | |
26 | attr_name); | |
e9837bbb | 27 | |
28 | if (add) | |
544c4605 JZ |
29 | cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "add %s", |
30 | busid); | |
e9837bbb | 31 | else |
544c4605 JZ |
32 | cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "del %s", |
33 | busid); | |
e9837bbb | 34 | |
1e940319 | 35 | rc = write_sysfs_attribute(match_busid_attr_path, command, |
544c4605 | 36 | cmd_size); |
30f05546 | 37 | if (rc < 0) { |
38 | dbg("failed to write match_busid: %s", strerror(errno)); | |
1e940319 | 39 | return -1; |
e9837bbb | 40 | } |
41 | ||
1e940319 | 42 | return 0; |
e9837bbb | 43 | } |