Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_pop3_handler.c @ 8867:5119c8150478
Fixed runtime handling of systems without EPOLLRDHUP support.
In 7583:efd71d49bde0 (nginx 1.17.5) along with introduction of the
ioctl(FIONREAD) support proper handling of systems without EPOLLRDHUP
support in the kernel (but with EPOLLRDHUP in headers) was broken.
Before the change, rev->available was never set to 0 unless
ngx_use_epoll_rdhup was also set (that is, runtime test for EPOLLRDHUP
introduced in 6536:f7849bfb6d21 succeeded). After the change,
rev->available might reach 0 on systems without runtime EPOLLRDHUP
support, stopping further reading in ngx_readv_chain() and ngx_unix_recv().
And, if EOF happened to be already reported along with the last event,
it is not reported again by epoll_wait(), leading to connection hangs
and timeouts on such systems.
This affects Linux kernels before 2.6.17 if nginx was compiled
with newer headers, and, more importantly, emulation layers, such as
DigitalOcean's App Platform's / gVisor's epoll emulation layer.
Fix is to explicitly check ngx_use_epoll_rdhup before the corresponding
rev->pending_eof tests in ngx_readv_chain() and ngx_unix_recv().
author | Marcus Ball <marcus.ball@live.com> |
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date | Mon, 30 May 2022 02:38:07 +0300 |
parents | 815c63581be4 |
children |
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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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
1136 | 11 #include <ngx_mail.h> |
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12 #include <ngx_mail_pop3_module.h> |
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13 |
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14 |
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15 static ngx_int_t ngx_mail_pop3_user(ngx_mail_session_t *s, ngx_connection_t *c); |
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16 static ngx_int_t ngx_mail_pop3_pass(ngx_mail_session_t *s, ngx_connection_t *c); |
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17 static ngx_int_t ngx_mail_pop3_capa(ngx_mail_session_t *s, ngx_connection_t *c, |
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18 ngx_int_t stls); |
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19 static ngx_int_t ngx_mail_pop3_stls(ngx_mail_session_t *s, ngx_connection_t *c); |
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20 static ngx_int_t ngx_mail_pop3_apop(ngx_mail_session_t *s, ngx_connection_t *c); |
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21 static ngx_int_t ngx_mail_pop3_auth(ngx_mail_session_t *s, ngx_connection_t *c); |
539 | 22 |
413
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23 |
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24 static u_char pop3_greeting[] = "+OK POP3 ready" CRLF; |
521 | 25 static u_char pop3_ok[] = "+OK" CRLF; |
809 | 26 static u_char pop3_next[] = "+ " CRLF; |
27 static u_char pop3_username[] = "+ VXNlcm5hbWU6" CRLF; | |
28 static u_char pop3_password[] = "+ UGFzc3dvcmQ6" CRLF; | |
521 | 29 static u_char pop3_invalid_command[] = "-ERR invalid command" CRLF; |
30 | |
31 | |
32 void | |
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33 ngx_mail_pop3_init_session(ngx_mail_session_t *s, ngx_connection_t *c) |
541 | 34 { |
800 | 35 u_char *p; |
1136 | 36 ngx_mail_core_srv_conf_t *cscf; |
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37 ngx_mail_pop3_srv_conf_t *pscf; |
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38 |
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39 pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); |
1136 | 40 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
539 | 41 |
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42 if (pscf->auth_methods |
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43 & (NGX_MAIL_AUTH_APOP_ENABLED|NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) |
800 | 44 { |
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45 if (ngx_mail_salt(s, c, cscf) != NGX_OK) { |
1136 | 46 ngx_mail_session_internal_server_error(s); |
800 | 47 return; |
48 } | |
49 | |
2049 | 50 s->out.data = ngx_pnalloc(c->pool, sizeof(pop3_greeting) + s->salt.len); |
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51 if (s->out.data == NULL) { |
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52 ngx_mail_session_internal_server_error(s); |
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53 return; |
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54 } |
800 | 55 |
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56 p = ngx_cpymem(s->out.data, pop3_greeting, sizeof(pop3_greeting) - 3); |
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57 *p++ = ' '; |
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58 p = ngx_cpymem(p, s->salt.data, s->salt.len); |
800 | 59 |
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60 s->out.len = p - s->out.data; |
800 | 61 |
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62 } else { |
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63 ngx_str_set(&s->out, pop3_greeting); |
800 | 64 } |
65 | |
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66 c->read->handler = ngx_mail_pop3_init_protocol; |
539 | 67 |
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68 ngx_add_timer(c->read, cscf->timeout); |
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69 |
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70 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
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71 ngx_mail_close_connection(c); |
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72 } |
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73 |
1136 | 74 ngx_mail_send(c->write); |
539 | 75 } |
76 | |
77 | |
78 void | |
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79 ngx_mail_pop3_init_protocol(ngx_event_t *rev) |
539 | 80 { |
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81 ngx_connection_t *c; |
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82 ngx_mail_session_t *s; |
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83 |
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84 c = rev->data; |
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85 |
541 | 86 c->log->action = "in auth state"; |
87 | |
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88 if (rev->timedout) { |
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89 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); |
577 | 90 c->timedout = 1; |
1136 | 91 ngx_mail_close_connection(c); |
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92 return; |
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93 } |
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94 |
539 | 95 s = c->data; |
521 | 96 |
419
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97 if (s->buffer == NULL) { |
583 | 98 if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) |
99 == NGX_ERROR) | |
100 { | |
1136 | 101 ngx_mail_session_internal_server_error(s); |
583 | 102 return; |
103 } | |
104 | |
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105 s->buffer = ngx_create_temp_buf(c->pool, 128); |
583 | 106 if (s->buffer == NULL) { |
1136 | 107 ngx_mail_session_internal_server_error(s); |
583 | 108 return; |
109 } | |
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110 } |
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111 |
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112 s->mail_state = ngx_pop3_start; |
1477 | 113 c->read->handler = ngx_mail_pop3_auth_state; |
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114 |
1477 | 115 ngx_mail_pop3_auth_state(rev); |
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116 } |
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117 |
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118 |
527 | 119 void |
1477 | 120 ngx_mail_pop3_auth_state(ngx_event_t *rev) |
521 | 121 { |
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122 ngx_int_t rc; |
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123 ngx_connection_t *c; |
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124 ngx_mail_session_t *s; |
521 | 125 |
126 c = rev->data; | |
527 | 127 s = c->data; |
521 | 128 |
1136 | 129 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 auth state"); |
527 | 130 |
131 if (rev->timedout) { | |
132 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
577 | 133 c->timedout = 1; |
1136 | 134 ngx_mail_close_connection(c); |
527 | 135 return; |
136 } | |
137 | |
539 | 138 if (s->out.len) { |
1136 | 139 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 send handler busy"); |
539 | 140 s->blocked = 1; |
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141 |
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142 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
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143 ngx_mail_close_connection(c); |
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144 return; |
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145 } |
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146 |
539 | 147 return; |
148 } | |
149 | |
150 s->blocked = 0; | |
151 | |
1482 | 152 rc = ngx_mail_read_command(s, c); |
1136 | 153 |
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154 if (rc == NGX_AGAIN) { |
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155 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
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156 ngx_mail_session_internal_server_error(s); |
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157 return; |
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158 } |
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159 |
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160 return; |
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161 } |
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162 |
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163 if (rc == NGX_ERROR) { |
1136 | 164 return; |
165 } | |
166 | |
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167 ngx_str_set(&s->out, pop3_ok); |
1136 | 168 |
169 if (rc == NGX_OK) { | |
170 switch (s->mail_state) { | |
171 | |
172 case ngx_pop3_start: | |
173 | |
174 switch (s->command) { | |
175 | |
176 case NGX_POP3_USER: | |
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177 rc = ngx_mail_pop3_user(s, c); |
1136 | 178 break; |
179 | |
180 case NGX_POP3_CAPA: | |
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181 rc = ngx_mail_pop3_capa(s, c, 1); |
1136 | 182 break; |
183 | |
184 case NGX_POP3_APOP: | |
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185 rc = ngx_mail_pop3_apop(s, c); |
1136 | 186 break; |
187 | |
188 case NGX_POP3_AUTH: | |
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189 rc = ngx_mail_pop3_auth(s, c); |
1136 | 190 break; |
191 | |
192 case NGX_POP3_QUIT: | |
193 s->quit = 1; | |
194 break; | |
195 | |
196 case NGX_POP3_NOOP: | |
197 break; | |
198 | |
199 case NGX_POP3_STLS: | |
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200 rc = ngx_mail_pop3_stls(s, c); |
1136 | 201 break; |
202 | |
203 default: | |
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204 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
1136 | 205 break; |
206 } | |
207 | |
208 break; | |
209 | |
210 case ngx_pop3_user: | |
211 | |
212 switch (s->command) { | |
213 | |
214 case NGX_POP3_PASS: | |
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215 rc = ngx_mail_pop3_pass(s, c); |
1136 | 216 break; |
217 | |
218 case NGX_POP3_CAPA: | |
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219 rc = ngx_mail_pop3_capa(s, c, 0); |
1136 | 220 break; |
221 | |
222 case NGX_POP3_QUIT: | |
223 s->quit = 1; | |
224 break; | |
225 | |
226 case NGX_POP3_NOOP: | |
227 break; | |
228 | |
229 default: | |
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230 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
1136 | 231 break; |
232 } | |
233 | |
234 break; | |
235 | |
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236 /* suppress warnings */ |
1136 | 237 case ngx_pop3_passwd: |
238 break; | |
239 | |
240 case ngx_pop3_auth_login_username: | |
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241 rc = ngx_mail_auth_login_username(s, c, 0); |
1136 | 242 |
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243 ngx_str_set(&s->out, pop3_password); |
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244 s->mail_state = ngx_pop3_auth_login_password; |
1136 | 245 break; |
246 | |
247 case ngx_pop3_auth_login_password: | |
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248 rc = ngx_mail_auth_login_password(s, c); |
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249 break; |
1136 | 250 |
251 case ngx_pop3_auth_plain: | |
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252 rc = ngx_mail_auth_plain(s, c, 0); |
1136 | 253 break; |
254 | |
255 case ngx_pop3_auth_cram_md5: | |
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256 rc = ngx_mail_auth_cram_md5(s, c); |
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257 break; |
6774
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258 |
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259 case ngx_pop3_auth_external: |
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260 rc = ngx_mail_auth_external(s, c, 0); |
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261 break; |
1136 | 262 } |
263 } | |
264 | |
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265 if (s->buffer->pos < s->buffer->last) { |
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266 s->blocked = 1; |
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267 } |
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268 |
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269 switch (rc) { |
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270 |
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271 case NGX_DONE: |
1482 | 272 ngx_mail_auth(s, c); |
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273 return; |
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274 |
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275 case NGX_ERROR: |
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276 ngx_mail_session_internal_server_error(s); |
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277 return; |
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278 |
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279 case NGX_MAIL_PARSE_INVALID_COMMAND: |
1136 | 280 s->mail_state = ngx_pop3_start; |
281 s->state = 0; | |
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282 |
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283 ngx_str_set(&s->out, pop3_invalid_command); |
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284 |
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285 /* fall through */ |
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286 |
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287 case NGX_OK: |
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288 |
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289 s->args.nelts = 0; |
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290 |
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291 if (s->buffer->pos == s->buffer->last) { |
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292 s->buffer->pos = s->buffer->start; |
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293 s->buffer->last = s->buffer->start; |
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294 } |
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295 |
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296 if (s->state) { |
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297 s->arg_start = s->buffer->pos; |
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298 } |
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299 |
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300 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
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301 ngx_mail_session_internal_server_error(s); |
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302 return; |
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303 } |
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304 |
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305 ngx_mail_send(c->write); |
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306 } |
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307 } |
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308 |
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309 static ngx_int_t |
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310 ngx_mail_pop3_user(ngx_mail_session_t *s, ngx_connection_t *c) |
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311 { |
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312 ngx_str_t *arg; |
1479 | 313 |
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314 #if (NGX_MAIL_SSL) |
1479 | 315 if (ngx_mail_starttls_only(s, c)) { |
316 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
1136 | 317 } |
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318 #endif |
1136 | 319 |
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320 if (s->args.nelts != 1) { |
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321 return NGX_MAIL_PARSE_INVALID_COMMAND; |
1136 | 322 } |
323 | |
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324 arg = s->args.elts; |
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325 s->login.len = arg[0].len; |
2049 | 326 s->login.data = ngx_pnalloc(c->pool, s->login.len); |
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327 if (s->login.data == NULL) { |
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328 return NGX_ERROR; |
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329 } |
1136 | 330 |
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331 ngx_memcpy(s->login.data, arg[0].data, s->login.len); |
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332 |
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333 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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334 "pop3 login: \"%V\"", &s->login); |
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335 |
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336 s->mail_state = ngx_pop3_user; |
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337 |
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338 return NGX_OK; |
1136 | 339 } |
340 | |
341 | |
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342 static ngx_int_t |
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343 ngx_mail_pop3_pass(ngx_mail_session_t *s, ngx_connection_t *c) |
1136 | 344 { |
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345 ngx_str_t *arg; |
1136 | 346 |
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347 if (s->args.nelts != 1) { |
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348 return NGX_MAIL_PARSE_INVALID_COMMAND; |
527 | 349 } |
350 | |
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351 arg = s->args.elts; |
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352 s->passwd.len = arg[0].len; |
2049 | 353 s->passwd.data = ngx_pnalloc(c->pool, s->passwd.len); |
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354 if (s->passwd.data == NULL) { |
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355 return NGX_ERROR; |
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356 } |
1323 | 357 |
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358 ngx_memcpy(s->passwd.data, arg[0].data, s->passwd.len); |
1323 | 359 |
360 #if (NGX_DEBUG_MAIL_PASSWD) | |
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361 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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362 "pop3 passwd: \"%V\"", &s->passwd); |
1323 | 363 #endif |
364 | |
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365 return NGX_DONE; |
521 | 366 } |
367 | |
368 | |
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369 static ngx_int_t |
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370 ngx_mail_pop3_capa(ngx_mail_session_t *s, ngx_connection_t *c, ngx_int_t stls) |
420
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371 { |
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372 ngx_mail_pop3_srv_conf_t *pscf; |
420
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373 |
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374 pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); |
809 | 375 |
1322 | 376 #if (NGX_MAIL_SSL) |
377 | |
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378 if (stls && c->ssl == NULL) { |
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379 ngx_mail_ssl_conf_t *sslcf; |
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380 |
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381 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
1322 | 382 |
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383 if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { |
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384 s->out = pscf->starttls_capability; |
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385 return NGX_OK; |
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386 } |
809 | 387 |
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388 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
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389 s->out = pscf->starttls_only_capability; |
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390 return NGX_OK; |
421
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391 } |
01456a419cf9
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392 } |
420
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393 |
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394 #endif |
420
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395 |
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396 s->out = pscf->capability; |
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397 return NGX_OK; |
417
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398 } |
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399 |
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400 |
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401 static ngx_int_t |
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402 ngx_mail_pop3_stls(ngx_mail_session_t *s, ngx_connection_t *c) |
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403 { |
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404 #if (NGX_MAIL_SSL) |
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405 ngx_mail_ssl_conf_t *sslcf; |
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406 |
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407 if (c->ssl == NULL) { |
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408 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
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409 if (sslcf->starttls) { |
8459
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Mail: POP3 pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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410 s->buffer->pos = s->buffer->start; |
815c63581be4
Mail: POP3 pipelining support.
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411 s->buffer->last = s->buffer->start; |
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412 c->read->handler = ngx_mail_starttls_handler; |
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413 return NGX_OK; |
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414 } |
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415 } |
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|
416 |
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417 #endif |
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418 |
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419 return NGX_MAIL_PARSE_INVALID_COMMAND; |
855
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420 } |
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421 |
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422 |
521 | 423 static ngx_int_t |
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424 ngx_mail_pop3_apop(ngx_mail_session_t *s, ngx_connection_t *c) |
420
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425 { |
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426 ngx_str_t *arg; |
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427 ngx_mail_pop3_srv_conf_t *pscf; |
1479 | 428 |
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429 #if (NGX_MAIL_SSL) |
1479 | 430 if (ngx_mail_starttls_only(s, c)) { |
431 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
539 | 432 } |
433 #endif | |
434 | |
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435 if (s->args.nelts != 2) { |
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436 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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437 } |
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438 |
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439 pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); |
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440 |
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441 if (!(pscf->auth_methods & NGX_MAIL_AUTH_APOP_ENABLED)) { |
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442 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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443 } |
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444 |
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445 arg = s->args.elts; |
543 | 446 |
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447 s->login.len = arg[0].len; |
2049 | 448 s->login.data = ngx_pnalloc(c->pool, s->login.len); |
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449 if (s->login.data == NULL) { |
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450 return NGX_ERROR; |
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451 } |
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452 |
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453 ngx_memcpy(s->login.data, arg[0].data, s->login.len); |
479 | 454 |
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455 s->passwd.len = arg[1].len; |
2049 | 456 s->passwd.data = ngx_pnalloc(c->pool, s->passwd.len); |
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457 if (s->passwd.data == NULL) { |
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458 return NGX_ERROR; |
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459 } |
479 | 460 |
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461 ngx_memcpy(s->passwd.data, arg[1].data, s->passwd.len); |
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462 |
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463 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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464 "pop3 apop: \"%V\" \"%V\"", &s->login, &s->passwd); |
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465 |
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466 s->auth_method = NGX_MAIL_AUTH_APOP; |
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467 |
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468 return NGX_DONE; |
417
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469 } |
539 | 470 |
471 | |
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472 static ngx_int_t |
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473 ngx_mail_pop3_auth(ngx_mail_session_t *s, ngx_connection_t *c) |
541 | 474 { |
1479 | 475 ngx_int_t rc; |
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476 ngx_mail_pop3_srv_conf_t *pscf; |
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|
477 |
1479 | 478 #if (NGX_MAIL_SSL) |
479 if (ngx_mail_starttls_only(s, c)) { | |
480 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
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481 } |
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482 #endif |
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483 |
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484 pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); |
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485 |
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486 if (s->args.nelts == 0) { |
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487 s->out = pscf->auth_capability; |
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488 s->state = 0; |
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489 |
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490 return NGX_OK; |
541 | 491 } |
577 | 492 |
1479 | 493 rc = ngx_mail_auth_parse(s, c); |
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494 |
1479 | 495 switch (rc) { |
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496 |
1479 | 497 case NGX_MAIL_AUTH_LOGIN: |
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|
498 |
3516
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ngx_str_set() and ngx_str_null()
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3450
diff
changeset
|
499 ngx_str_set(&s->out, pop3_username); |
1479 | 500 s->mail_state = ngx_pop3_auth_login_username; |
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501 |
1479 | 502 return NGX_OK; |
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|
503 |
2495
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compatibility with Microsoft's
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2388
diff
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504 case NGX_MAIL_AUTH_LOGIN_USERNAME: |
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compatibility with Microsoft's
Igor Sysoev <igor@sysoev.ru>
parents:
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505 |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
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parents:
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diff
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506 ngx_str_set(&s->out, pop3_password); |
2495
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compatibility with Microsoft's
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parents:
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507 s->mail_state = ngx_pop3_auth_login_password; |
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compatibility with Microsoft's
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parents:
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508 |
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compatibility with Microsoft's
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parents:
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509 return ngx_mail_auth_login_username(s, c, 1); |
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compatibility with Microsoft's
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parents:
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changeset
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510 |
1479 | 511 case NGX_MAIL_AUTH_PLAIN: |
1476
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split pop3, imap, and smtp handlers
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parents:
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diff
changeset
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512 |
3516
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ngx_str_set() and ngx_str_null()
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parents:
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513 ngx_str_set(&s->out, pop3_next); |
1479 | 514 s->mail_state = ngx_pop3_auth_plain; |
541 | 515 |
1479 | 516 return NGX_OK; |
1476
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split pop3, imap, and smtp handlers
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parents:
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517 |
1479 | 518 case NGX_MAIL_AUTH_CRAM_MD5: |
1476
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split pop3, imap, and smtp handlers
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parents:
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changeset
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519 |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
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parents:
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diff
changeset
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520 if (!(pscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) { |
1476
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parents:
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521 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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split pop3, imap, and smtp handlers
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parents:
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522 } |
541 | 523 |
1479 | 524 if (ngx_mail_auth_cram_md5_salt(s, c, "+ ", 2) == NGX_OK) { |
525 s->mail_state = ngx_pop3_auth_cram_md5; | |
526 return NGX_OK; | |
1476
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parents:
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527 } |
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parents:
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528 |
1479 | 529 return NGX_ERROR; |
6774
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
4499
diff
changeset
|
530 |
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
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diff
changeset
|
531 case NGX_MAIL_AUTH_EXTERNAL: |
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
4499
diff
changeset
|
532 |
6869
b2915d99ee8d
Mail: make it possible to disable SASL EXTERNAL.
Sergey Kandaurov <pluknet@nginx.com>
parents:
6774
diff
changeset
|
533 if (!(pscf->auth_methods & NGX_MAIL_AUTH_EXTERNAL_ENABLED)) { |
b2915d99ee8d
Mail: make it possible to disable SASL EXTERNAL.
Sergey Kandaurov <pluknet@nginx.com>
parents:
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diff
changeset
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534 return NGX_MAIL_PARSE_INVALID_COMMAND; |
b2915d99ee8d
Mail: make it possible to disable SASL EXTERNAL.
Sergey Kandaurov <pluknet@nginx.com>
parents:
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diff
changeset
|
535 } |
b2915d99ee8d
Mail: make it possible to disable SASL EXTERNAL.
Sergey Kandaurov <pluknet@nginx.com>
parents:
6774
diff
changeset
|
536 |
6774
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
4499
diff
changeset
|
537 ngx_str_set(&s->out, pop3_username); |
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
4499
diff
changeset
|
538 s->mail_state = ngx_pop3_auth_external; |
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
4499
diff
changeset
|
539 |
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
4499
diff
changeset
|
540 return NGX_OK; |
541 | 541 } |
542 | |
1479 | 543 return rc; |
541 | 544 } |