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2645 | jermar | 1 | /* |
2 | * Copyright (c) 2007 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup fs |
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30 | * @{ |
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31 | */ |
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32 | |||
33 | /** |
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34 | * @file tmpfs_ops.c |
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35 | * @brief Implementation of VFS operations for the TMPFS file system |
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36 | * server. |
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37 | */ |
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38 | |||
39 | #include "tmpfs.h" |
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40 | #include "../../vfs/vfs.h" |
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41 | #include <ipc/ipc.h> |
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42 | #include <async.h> |
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43 | #include <errno.h> |
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44 | |||
45 | #define PLB_GET_CHAR(i) (tmpfs_reg.plb_ro[(i) % PLB_SIZE]) |
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46 | |||
47 | /** Compare one component of path to a directory entry. |
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48 | * |
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49 | * @param dentry Directory entry to compare the path component with. |
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50 | * @param start Index into PLB where the path component starts. |
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51 | * @param last Index of the last character of the path in PLB. |
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52 | * |
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53 | * @return Zero on failure or delta such that (index + delta) % |
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54 | * PLB_SIZE points to a new path component in PLB. |
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55 | */ |
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56 | static unsigned match_path_component(tmpfs_dentry_t *dentry, unsigned start, |
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57 | unsigned last) |
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58 | { |
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59 | return 0; |
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60 | } |
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61 | |||
62 | void tmpfs_lookup(ipc_callid_t rid, ipc_call_t *request) |
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63 | { |
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64 | int first = IPC_GET_ARG1(*request); |
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65 | int second = IPC_GET_ARG2(*request); |
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66 | int dev_handle = IPC_GET_ARG3(*request); |
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67 | |||
68 | |||
69 | } |
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70 | |||
71 | /** |
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72 | * @} |
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73 | */ |