1 | /*- |
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2 | * Copyright (c) 2010 Lawrence Stewart <lstewart@freebsd.org> |
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3 | * Copyright (c) 2010 The FreeBSD Foundation |
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4 | * All rights reserved. |
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5 | * |
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6 | * This software was developed by Lawrence Stewart while studying at the Centre |
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7 | * for Advanced Internet Architectures, Swinburne University of Technology, made |
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8 | * possible in part by grants from the FreeBSD Foundation and Cisco University |
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9 | * Research Program Fund at Community Foundation Silicon Valley. |
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10 | * |
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11 | * Portions of this software were developed at the Centre for Advanced |
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12 | * Internet Architectures, Swinburne University of Technology, Melbourne, |
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13 | * Australia by Lawrence Stewart under sponsorship from the FreeBSD Foundation. |
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14 | * |
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15 | * Redistribution and use in source and binary forms, with or without |
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16 | * modification, are permitted provided that the following conditions |
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17 | * are met: |
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18 | * 1. Redistributions of source code must retain the above copyright |
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19 | * notice, this list of conditions and the following disclaimer. |
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20 | * 2. Redistributions in binary form must reproduce the above copyright |
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21 | * notice, this list of conditions and the following disclaimer in the |
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22 | * documentation and/or other materials provided with the distribution. |
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23 | * |
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24 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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34 | * SUCH DAMAGE. |
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35 | * |
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36 | * $FreeBSD$ |
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37 | */ |
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38 | |
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39 | /* |
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40 | * A KPI for managing kernel helper modules which perform useful functionality |
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41 | * within the kernel. Originally released as part of the NewTCP research project |
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42 | * at Swinburne University of Technology's Centre for Advanced Internet |
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43 | * Architectures, Melbourne, Australia, which was made possible in part by a |
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44 | * grant from the Cisco University Research Program Fund at Community Foundation |
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45 | * Silicon Valley. More details are available at: |
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46 | * http://caia.swin.edu.au/urp/newtcp/ |
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47 | */ |
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48 | |
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49 | #ifndef _SYS_KHELP_H_ |
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50 | #define _SYS_KHELP_H_ |
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51 | |
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52 | struct helper; |
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53 | struct hookinfo; |
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54 | struct osd; |
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55 | |
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56 | /* Helper classes. */ |
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57 | #define HELPER_CLASS_TCP 0x00000001 |
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58 | |
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59 | /* Public KPI functions. */ |
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60 | int khelp_register_helper(struct helper *h); |
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61 | |
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62 | int khelp_deregister_helper(struct helper *h); |
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63 | |
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64 | int khelp_init_osd(uint32_t classes, struct osd *hosd); |
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65 | |
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66 | int khelp_destroy_osd(struct osd *hosd); |
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67 | |
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68 | void * khelp_get_osd(struct osd *hosd, int32_t id); |
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69 | |
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70 | int32_t khelp_get_id(char *hname); |
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71 | |
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72 | int khelp_add_hhook(struct hookinfo *hki, uint32_t flags); |
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73 | |
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74 | int khelp_remove_hhook(struct hookinfo *hki); |
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75 | |
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76 | #endif /* _SYS_KHELP_H_ */ |
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