1 | /* Ported to busybox from mtd-utils.
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2 | *
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3 | * Licensed under GPLv2, see file LICENSE in this source tree.
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4 | */
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5 |
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6 | //applet:IF_UBIATTACH(APPLET_ODDNAME(ubiattach, ubi_attach_detach, _BB_DIR_USR_SBIN, _BB_SUID_DROP, ubiattach))
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7 | //applet:IF_UBIDETACH(APPLET_ODDNAME(ubidetach, ubi_attach_detach, _BB_DIR_USR_SBIN, _BB_SUID_DROP, ubidetach))
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8 |
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9 | //kbuild:lib-$(CONFIG_UBIATTACH) += ubi_attach_detach.o
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10 | //kbuild:lib-$(CONFIG_UBIDETACH) += ubi_attach_detach.o
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11 |
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12 | //config:config UBIATTACH
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13 | //config: bool "ubiattach"
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14 | //config: default n
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15 | //config: depends on PLATFORM_LINUX
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16 | //config: help
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17 | //config: Attach MTD device to an UBI device.
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18 | //config:
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19 | //config:config UBIDETACH
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20 | //config: bool "ubidetach"
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21 | //config: default n
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22 | //config: depends on PLATFORM_LINUX
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23 | //config: help
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24 | //config: Detach MTD device from an UBI device.
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25 |
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26 | #include "libbb.h"
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27 | #include <mtd/ubi-user.h>
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28 |
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29 | #define OPTION_M (1 << 0)
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30 | #define OPTION_D (1 << 1)
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31 |
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32 | #define do_attach (ENABLE_UBIATTACH && \
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33 | (!ENABLE_UBIDETACH || (applet_name[3] == 'a')))
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34 |
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35 | //usage:#define ubiattach_trivial_usage
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36 | //usage: "-m MTD_NUM [-d UBI_NUM] UBI_CTRL_DEV"
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37 | //usage:#define ubiattach_full_usage "\n\n"
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38 | //usage: "Attach MTD device to UBI\n"
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39 | //usage: "\nOptions:"
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40 | //usage: "\n -m MTD_NUM MTD device number to attach"
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41 | //usage: "\n -d UBI_NUM UBI device number to assign"
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42 | //usage:
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43 | //usage:#define ubidetach_trivial_usage
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44 | //usage: "-d UBI_NUM UBI_CTRL_DEV"
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45 | //usage:#define ubidetach_full_usage "\n\n"
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46 | //usage: "Detach MTD device from UBI\n"
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47 | //usage: "\nOptions:"
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48 | //usage: "\n -d UBI_NUM UBI device number"
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49 |
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50 | int ubi_attach_detach_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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51 | int ubi_attach_detach_main(int argc UNUSED_PARAM, char **argv)
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52 | {
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53 | unsigned opts;
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54 | char *ubi_ctrl;
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55 | //struct stat st;
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56 | struct ubi_attach_req req;
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57 | int fd;
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58 | int mtd_num;
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59 | int dev_num = UBI_DEV_NUM_AUTO;
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60 |
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61 | opt_complementary = "=1:m+:d+";
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62 | opts = getopt32(argv, "m:d:", &mtd_num, &dev_num);
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63 | ubi_ctrl = argv[optind];
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64 |
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65 | fd = xopen(ubi_ctrl, O_RDWR);
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66 | //xfstat(fd, &st, ubi_ctrl);
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67 | //if (!S_ISCHR(st.st_mode))
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68 | // bb_error_msg_and_die("%s: not a char device", ubi_ctrl);
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69 |
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70 | if (do_attach) {
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71 | if (!(opts & OPTION_M))
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72 | bb_error_msg_and_die("%s device not specified", "MTD");
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73 |
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74 | memset(&req, 0, sizeof(req));
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75 | req.mtd_num = mtd_num;
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76 | req.ubi_num = dev_num;
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77 |
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78 | xioctl(fd, UBI_IOCATT, &req);
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79 | } else { /* detach */
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80 | if (!(opts & OPTION_D))
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81 | bb_error_msg_and_die("%s device not specified", "UBI");
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82 |
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83 | xioctl(fd, UBI_IOCDET, &dev_num);
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84 | }
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85 |
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86 | if (ENABLE_FEATURE_CLEAN_UP)
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87 | close(fd);
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88 |
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89 | return EXIT_SUCCESS;
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90 | }
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