Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_shmem.c @ 6817:e75e854657ba
SSL: $ssl_curves (ticket #1088).
The variable contains a list of curves as supported by the client.
Known curves are listed by their names, unknown ones are shown
in hex, e.g., "0x001d:prime256v1:secp521r1:secp384r1".
Note that OpenSSL uses session data for SSL_get1_curves(), and
it doesn't store full list of curves supported by the client when
serializing a session. As a result $ssl_curves is only available
for new sessions (and will be empty for reused ones).
The variable is only meaningful when using OpenSSL 1.0.2 and above.
With older versions the variable is empty.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 05 Dec 2016 22:23:23 +0300 |
parents | d620f497c50f |
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rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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11 |
469 | 12 #if (NGX_HAVE_MAP_ANON) |
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13 |
605 | 14 ngx_int_t |
15 ngx_shm_alloc(ngx_shm_t *shm) | |
358
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16 { |
639 | 17 shm->addr = (u_char *) mmap(NULL, shm->size, |
18 PROT_READ|PROT_WRITE, | |
19 MAP_ANON|MAP_SHARED, -1, 0); | |
358
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20 |
605 | 21 if (shm->addr == MAP_FAILED) { |
22 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, | |
23 "mmap(MAP_ANON|MAP_SHARED, %uz) failed", shm->size); | |
24 return NGX_ERROR; | |
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25 } |
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26 |
605 | 27 return NGX_OK; |
28 } | |
29 | |
30 | |
31 void | |
32 ngx_shm_free(ngx_shm_t *shm) | |
33 { | |
639 | 34 if (munmap((void *) shm->addr, shm->size) == -1) { |
605 | 35 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
36 "munmap(%p, %uz) failed", shm->addr, shm->size); | |
37 } | |
358
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38 } |
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39 |
469 | 40 #elif (NGX_HAVE_MAP_DEVZERO) |
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41 |
605 | 42 ngx_int_t |
43 ngx_shm_alloc(ngx_shm_t *shm) | |
358
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44 { |
605 | 45 ngx_fd_t fd; |
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46 |
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47 fd = open("/dev/zero", O_RDWR); |
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48 |
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49 if (fd == -1) { |
605 | 50 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
467 | 51 "open(\"/dev/zero\") failed"); |
605 | 52 return NGX_ERROR; |
358
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53 } |
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54 |
639 | 55 shm->addr = (u_char *) mmap(NULL, shm->size, PROT_READ|PROT_WRITE, |
56 MAP_SHARED, fd, 0); | |
358
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57 |
605 | 58 if (shm->addr == MAP_FAILED) { |
59 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, | |
60 "mmap(/dev/zero, MAP_SHARED, %uz) failed", shm->size); | |
358
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61 } |
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62 |
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63 if (close(fd) == -1) { |
605 | 64 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
467 | 65 "close(\"/dev/zero\") failed"); |
358
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66 } |
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67 |
605 | 68 return (shm->addr == MAP_FAILED) ? NGX_ERROR : NGX_OK; |
69 } | |
70 | |
71 | |
72 void | |
73 ngx_shm_free(ngx_shm_t *shm) | |
74 { | |
639 | 75 if (munmap((void *) shm->addr, shm->size) == -1) { |
605 | 76 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
77 "munmap(%p, %uz) failed", shm->addr, shm->size); | |
78 } | |
358
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79 } |
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80 |
469 | 81 #elif (NGX_HAVE_SYSVSHM) |
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82 |
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83 #include <sys/ipc.h> |
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84 #include <sys/shm.h> |
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85 |
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86 |
605 | 87 ngx_int_t |
88 ngx_shm_alloc(ngx_shm_t *shm) | |
358
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89 { |
605 | 90 int id; |
358
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91 |
605 | 92 id = shmget(IPC_PRIVATE, shm->size, (SHM_R|SHM_W|IPC_CREAT)); |
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93 |
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94 if (id == -1) { |
605 | 95 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
96 "shmget(%uz) failed", shm->size); | |
97 return NGX_ERROR; | |
358
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98 } |
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99 |
605 | 100 ngx_log_debug1(NGX_LOG_DEBUG_CORE, shm->log, 0, "shmget id: %d", id); |
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101 |
605 | 102 shm->addr = shmat(id, NULL, 0); |
103 | |
104 if (shm->addr == (void *) -1) { | |
105 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "shmat() failed"); | |
358
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106 } |
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107 |
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108 if (shmctl(id, IPC_RMID, NULL) == -1) { |
605 | 109 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
110 "shmctl(IPC_RMID) failed"); | |
358
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111 } |
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112 |
605 | 113 return (shm->addr == (void *) -1) ? NGX_ERROR : NGX_OK; |
114 } | |
115 | |
116 | |
117 void | |
118 ngx_shm_free(ngx_shm_t *shm) | |
119 { | |
120 if (shmdt(shm->addr) == -1) { | |
121 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, | |
122 "shmdt(%p) failed", shm->addr); | |
123 } | |
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124 } |
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125 |
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126 #endif |