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annotate dep/animia/src/fd/xnu.cc @ 156:cdf79282d647

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dep/animia: add VERY early x11 window stuff
author Paper <mrpapersonic@gmail.com>
date Wed, 15 Nov 2023 18:04:04 -0500
parents d2bbb5773616
children 18c8eb5d1edc
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1 /*
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2 ** fd/xnu.cpp
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3 ** - provides support for XNU (part of Darwin)
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4 */
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5 #include "animia/fd/xnu.h"
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6 #include "animia.h"
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7
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8 #include <cassert>
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9 #include <string>
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10 #include <unordered_map>
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11 #include <vector>
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12
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13 #include <fcntl.h>
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14 #include <libproc.h>
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15 #include <sys/sysctl.h>
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16 #include <sys/types.h>
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17 #include <sys/user.h>
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18
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19 namespace animia::internal::xnu {
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20
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21 static std::string GetProcessName(pid_t pid) {
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22 struct proc_bsdinfo proc;
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23
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24 int st = proc_pidinfo(pid, PROC_PIDTBSDINFO, 0, &proc, PROC_PIDTBSDINFO_SIZE);
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25 if (st != PROC_PIDTBSDINFO_SIZE)
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26 return "";
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27
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28 return (proc.pbi_name[0]) ? proc.pbi_name : proc.pbi_comm;
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29 }
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30
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31 bool XnuFdTools::EnumerateOpenProcesses(process_proc_t process_proc) {
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32 std::vector<pid_t> pids;
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33 pids.reserve(1024);
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34
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35 for (int returned_size = pids.capacity(); pids.capacity() > returned_size; pids.reserve(pids.capacity() * 2)) {
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36 returned_size = proc_listpids(PROC_ALL_PIDS, 0, pids.data(), pids.capacity() * sizeof(pid_t));
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37 if (returned_size == -1)
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38 return false;
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39 }
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41 for (int i = 0; i < size / sizeof(*pids); i++) {
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42 const pid_t pid = pids[i].kp_proc.p_pid;
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43 if (!process_proc({pid, GetProcessName(pid)}))
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44 return false;
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45 }
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47 return true;
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48 }
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49
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50 bool XnuFdTools::EnumerateOpenFiles(const std::set<pid_t>& pids, open_file_proc_t open_file_proc) {
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51 if (!open_file_proc)
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52 return false;
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53
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54 for (const auto& pid : pids) {
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55 int bufsz = proc_pidinfo(pid, PROC_PIDLISTFDS, 0, NULL, 0);
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56 if (bufsz == -1)
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57 return false;
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58
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59 struct proc_fdinfo* info = (struct proc_fdinfo*)malloc(bufsz);
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60 if (!info)
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61 return false;
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62
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63 proc_pidinfo(pid, PROC_PIDLISTFDS, 0, info, bufsz);
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64
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65 for (int i = 0; i < bufsz / sizeof(info[0]); i++) {
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66 if (info[i].proc_fdtype == PROX_FDTYPE_VNODE) {
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67 struct vnode_fdinfowithpath vnodeInfo;
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68
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69 int sz = proc_pidfdinfo(pid, info[i].proc_fd, PROC_PIDFDVNODEPATHINFO, &vnodeInfo,
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70 PROC_PIDFDVNODEPATHINFO_SIZE);
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71 if (sz != PROC_PIDFDVNODEPATHINFO_SIZE)
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72 return false;
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73
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74 /* this doesn't work!
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75 if (vnodeInfo.pfi.fi_openflags & O_WRONLY || vnodeInfo.pfi.fi_openflags & O_RDWR)
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76 continue;
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77 */
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78
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79 if (!open_file_proc({pid, vnodeInfo.pvip.vip_path}))
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80 return false;
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81 }
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82 }
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83 }
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84
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85 return true;
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86 }
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87
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88 } // namespace animia::internal::xnu