/
httpserv.c
1447 lines (1272 loc) · 45 KB
/
httpserv.c
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <stdio.h>
#include <string.h>
#include "secutil.h"
#if defined(XP_UNIX)
#include <unistd.h>
#endif
#if defined(_WINDOWS)
#include <process.h> /* for getpid() */
#endif
#include <signal.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include "nspr.h"
#include "prio.h"
#include "prerror.h"
#include "prnetdb.h"
#include "prclist.h"
#include "plgetopt.h"
#include "pk11func.h"
#include "nss.h"
#include "nssb64.h"
#include "sechash.h"
#include "cert.h"
#include "certdb.h"
#include "ocsp.h"
#include "ocspti.h"
#include "ocspi.h"
#ifndef PORT_Strstr
#define PORT_Strstr strstr
#endif
#ifndef PORT_Malloc
#define PORT_Malloc PR_Malloc
#endif
static int handle_connection(PRFileDesc *, PRFileDesc *, int);
/* data and structures for shutdown */
static int stopping;
static PRBool noDelay;
static int verbose;
static PRThread *acceptorThread;
static PRLogModuleInfo *lm;
#define PRINTF \
if (verbose) \
printf
#define FPRINTF \
if (verbose) \
fprintf
#define FLUSH \
if (verbose) { \
fflush(stdout); \
fflush(stderr); \
}
#define VLOG(arg) PR_LOG(lm, PR_LOG_DEBUG, arg)
static void
Usage(const char *progName)
{
fprintf(stderr,
"Usage: %s -p port [-Dbv]\n"
" [-t threads] [-i pid_file]\n"
" [-A nickname -C crl-filename]... [-O method]\n"
" [-d dbdir] [-f password_file] [-w password] [-P dbprefix]\n"
"-D means disable Nagle delays in TCP\n"
"-b means try binding to the port and exit\n"
"-v means verbose output\n"
"-t threads -- specify the number of threads to use for connections.\n"
"-i pid_file file to write the process id of httpserv\n"
"Parameters -A, -C and -O are used to provide an OCSP server at /ocsp?\n"
"-A a nickname of a CA certificate\n"
"-C a CRL filename corresponding to the preceding CA nickname\n"
"-O allowed HTTP methods for OCSP requests: get, post, all, random, get-unknown\n"
" random means: randomly fail if request method is GET, POST always works\n"
" get-unknown means: status unknown for GET, correct status for POST\n"
"Multiple pairs of parameters -A and -C are allowed.\n"
"If status for a cert from an unknown CA is requested, the cert from the\n"
"first -A parameter will be used to sign the unknown status response.\n"
"NSS database parameters are used only if OCSP parameters are used.\n",
progName);
}
static const char *
errWarn(char *funcString)
{
PRErrorCode perr = PR_GetError();
const char *errString = SECU_Strerror(perr);
fprintf(stderr, "httpserv: %s returned error %d:\n%s\n",
funcString, perr, errString);
return errString;
}
static void
errExit(char *funcString)
{
errWarn(funcString);
exit(3);
}
#define MAX_VIRT_SERVER_NAME_ARRAY_INDEX 10
/**************************************************************************
** Begin thread management routines and data.
**************************************************************************/
#define MIN_THREADS 3
#define DEFAULT_THREADS 8
#define MAX_THREADS 4096
#define MAX_PROCS 25
static int maxThreads = DEFAULT_THREADS;
typedef struct jobStr {
PRCList link;
PRFileDesc *tcp_sock;
PRFileDesc *model_sock;
int requestCert;
} JOB;
static PZLock *qLock; /* this lock protects all data immediately below */
static PRLock *lastLoadedCrlLock; /* this lock protects lastLoadedCrl variable */
static PZCondVar *jobQNotEmptyCv;
static PZCondVar *freeListNotEmptyCv;
static PZCondVar *threadCountChangeCv;
static int threadCount;
static PRCList jobQ;
static PRCList freeJobs;
static JOB *jobTable;
SECStatus
setupJobs(int maxJobs)
{
int i;
jobTable = (JOB *)PR_Calloc(maxJobs, sizeof(JOB));
if (!jobTable)
return SECFailure;
PR_INIT_CLIST(&jobQ);
PR_INIT_CLIST(&freeJobs);
for (i = 0; i < maxJobs; ++i) {
JOB *pJob = jobTable + i;
PR_APPEND_LINK(&pJob->link, &freeJobs);
}
return SECSuccess;
}
typedef int startFn(PRFileDesc *a, PRFileDesc *b, int c);
typedef enum { rs_idle = 0,
rs_running = 1,
rs_zombie = 2 } runState;
typedef struct perThreadStr {
PRFileDesc *a;
PRFileDesc *b;
int c;
int rv;
startFn *startFunc;
PRThread *prThread;
runState state;
} perThread;
static perThread *threads;
void
thread_wrapper(void *arg)
{
perThread *slot = (perThread *)arg;
slot->rv = (*slot->startFunc)(slot->a, slot->b, slot->c);
/* notify the thread exit handler. */
PZ_Lock(qLock);
slot->state = rs_zombie;
--threadCount;
PZ_NotifyAllCondVar(threadCountChangeCv);
PZ_Unlock(qLock);
}
int
jobLoop(PRFileDesc *a, PRFileDesc *b, int c)
{
PRCList *myLink = 0;
JOB *myJob;
PZ_Lock(qLock);
do {
myLink = 0;
while (PR_CLIST_IS_EMPTY(&jobQ) && !stopping) {
PZ_WaitCondVar(jobQNotEmptyCv, PR_INTERVAL_NO_TIMEOUT);
}
if (!PR_CLIST_IS_EMPTY(&jobQ)) {
myLink = PR_LIST_HEAD(&jobQ);
PR_REMOVE_AND_INIT_LINK(myLink);
}
PZ_Unlock(qLock);
myJob = (JOB *)myLink;
/* myJob will be null when stopping is true and jobQ is empty */
if (!myJob)
break;
handle_connection(myJob->tcp_sock, myJob->model_sock,
myJob->requestCert);
PZ_Lock(qLock);
PR_APPEND_LINK(myLink, &freeJobs);
PZ_NotifyCondVar(freeListNotEmptyCv);
} while (PR_TRUE);
return 0;
}
SECStatus
launch_threads(
startFn *startFunc,
PRFileDesc *a,
PRFileDesc *b,
int c,
PRBool local)
{
int i;
SECStatus rv = SECSuccess;
/* create the thread management serialization structs */
qLock = PZ_NewLock(nssILockSelfServ);
jobQNotEmptyCv = PZ_NewCondVar(qLock);
freeListNotEmptyCv = PZ_NewCondVar(qLock);
threadCountChangeCv = PZ_NewCondVar(qLock);
/* create monitor for crl reload procedure */
lastLoadedCrlLock = PR_NewLock();
/* allocate the array of thread slots */
threads = PR_Calloc(maxThreads, sizeof(perThread));
if (NULL == threads) {
fprintf(stderr, "Oh Drat! Can't allocate the perThread array\n");
return SECFailure;
}
/* 5 is a little extra, intended to keep the jobQ from underflowing.
** That is, from going empty while not stopping and clients are still
** trying to contact us.
*/
rv = setupJobs(maxThreads + 5);
if (rv != SECSuccess)
return rv;
PZ_Lock(qLock);
for (i = 0; i < maxThreads; ++i) {
perThread *slot = threads + i;
slot->state = rs_running;
slot->a = a;
slot->b = b;
slot->c = c;
slot->startFunc = startFunc;
slot->prThread = PR_CreateThread(PR_USER_THREAD,
thread_wrapper, slot, PR_PRIORITY_NORMAL,
(PR_TRUE ==
local)
? PR_LOCAL_THREAD
: PR_GLOBAL_THREAD,
PR_JOINABLE_THREAD, 0);
if (slot->prThread == NULL) {
printf("httpserv: Failed to launch thread!\n");
slot->state = rs_idle;
rv = SECFailure;
break;
}
++threadCount;
}
PZ_Unlock(qLock);
return rv;
}
#define DESTROY_CONDVAR(name) \
if (name) { \
PZ_DestroyCondVar(name); \
name = NULL; \
}
#define DESTROY_LOCK(name) \
if (name) { \
PZ_DestroyLock(name); \
name = NULL; \
}
void
terminateWorkerThreads(void)
{
int i;
VLOG(("httpserv: server_thread: waiting on stopping"));
PZ_Lock(qLock);
PZ_NotifyAllCondVar(jobQNotEmptyCv);
PZ_Unlock(qLock);
/* Wait for worker threads to terminate. */
for (i = 0; i < maxThreads; ++i) {
perThread *slot = threads + i;
if (slot->prThread) {
PR_JoinThread(slot->prThread);
}
}
/* The worker threads empty the jobQ before they terminate. */
PZ_Lock(qLock);
PORT_Assert(threadCount == 0);
PORT_Assert(PR_CLIST_IS_EMPTY(&jobQ));
PZ_Unlock(qLock);
DESTROY_CONDVAR(jobQNotEmptyCv);
DESTROY_CONDVAR(freeListNotEmptyCv);
DESTROY_CONDVAR(threadCountChangeCv);
PR_DestroyLock(lastLoadedCrlLock);
DESTROY_LOCK(qLock);
PR_Free(jobTable);
PR_Free(threads);
}
/**************************************************************************
** End thread management routines.
**************************************************************************/
PRBool NoReuse = PR_FALSE;
PRBool disableLocking = PR_FALSE;
static secuPWData pwdata = { PW_NONE, 0 };
struct caRevoInfoStr {
PRCList link;
char *nickname;
char *crlFilename;
CERTCertificate *cert;
CERTOCSPCertID *id;
CERTSignedCrl *crl;
};
typedef struct caRevoInfoStr caRevoInfo;
/* Created during app init. No locks necessary,
* because later on, only read access will occur. */
static caRevoInfo *caRevoInfos = NULL;
static enum {
ocspGetOnly,
ocspPostOnly,
ocspGetAndPost,
ocspRandomGetFailure,
ocspGetUnknown
} ocspMethodsAllowed = ocspGetAndPost;
static const char stopCmd[] = { "GET /stop " };
static const char getCmd[] = { "GET " };
static const char outHeader[] = {
"HTTP/1.0 200 OK\r\n"
"Server: Generic Web Server\r\n"
"Date: Tue, 26 Aug 1997 22:10:05 GMT\r\n"
"Content-type: text/plain\r\n"
"\r\n"
};
static const char outOcspHeader[] = {
"HTTP/1.0 200 OK\r\n"
"Server: Generic OCSP Server\r\n"
"Content-type: application/ocsp-response\r\n"
"\r\n"
};
static const char outBadRequestHeader[] = {
"HTTP/1.0 400 Bad Request\r\n"
"Server: Generic OCSP Server\r\n"
"\r\n"
};
void
stop_server()
{
stopping = 1;
PR_Interrupt(acceptorThread);
PZ_TraceFlush();
}
/* Will only work if the original input to url encoding was
* a base64 encoded buffer. Will only decode the sequences used
* for encoding the special base64 characters, and fail if any
* other encoded chars are found.
* Will return SECSuccess if input could be processed.
* Coversion is done in place.
*/
static SECStatus
urldecode_base64chars_inplace(char *buf)
{
char *walk;
size_t remaining_bytes;
if (!buf || !*buf)
return SECFailure;
walk = buf;
remaining_bytes = strlen(buf) + 1; /* include terminator */
while (*walk) {
if (*walk == '%') {
if (!PL_strncasecmp(walk, "%2B", 3)) {
*walk = '+';
} else if (!PL_strncasecmp(walk, "%2F", 3)) {
*walk = '/';
} else if (!PL_strncasecmp(walk, "%3D", 3)) {
*walk = '=';
} else {
return SECFailure;
}
remaining_bytes -= 3;
++walk;
memmove(walk, walk + 2, remaining_bytes);
} else {
++walk;
--remaining_bytes;
}
}
return SECSuccess;
}
int
handle_connection(
PRFileDesc *tcp_sock,
PRFileDesc *model_sock,
int requestCert)
{
PRFileDesc *ssl_sock = NULL;
PRFileDesc *local_file_fd = NULL;
char *pBuf; /* unused space at end of buf */
const char *errString;
PRStatus status;
int bufRem; /* unused bytes at end of buf */
int bufDat; /* characters received in buf */
int newln = 0; /* # of consecutive newlns */
int firstTime = 1;
int reqLen;
int rv;
int numIOVs;
PRSocketOptionData opt;
PRIOVec iovs[16];
char msgBuf[160];
char buf[10240];
char fileName[513];
char *getData = NULL; /* inplace conversion */
SECItem postData;
PRBool isOcspRequest = PR_FALSE;
PRBool isPost = PR_FALSE;
postData.data = NULL;
postData.len = 0;
pBuf = buf;
bufRem = sizeof buf;
VLOG(("httpserv: handle_connection: starting"));
opt.option = PR_SockOpt_Nonblocking;
opt.value.non_blocking = PR_FALSE;
PR_SetSocketOption(tcp_sock, &opt);
VLOG(("httpserv: handle_connection: starting\n"));
ssl_sock = tcp_sock;
if (noDelay) {
opt.option = PR_SockOpt_NoDelay;
opt.value.no_delay = PR_TRUE;
status = PR_SetSocketOption(ssl_sock, &opt);
if (status != PR_SUCCESS) {
errWarn("PR_SetSocketOption(PR_SockOpt_NoDelay, PR_TRUE)");
if (ssl_sock) {
PR_Close(ssl_sock);
}
return SECFailure;
}
}
while (1) {
const char *post;
const char *foundStr = NULL;
const char *tmp = NULL;
newln = 0;
reqLen = 0;
rv = PR_Read(ssl_sock, pBuf, bufRem - 1);
if (rv == 0 ||
(rv < 0 && PR_END_OF_FILE_ERROR == PR_GetError())) {
if (verbose)
errWarn("HDX PR_Read hit EOF");
break;
}
if (rv < 0) {
errWarn("HDX PR_Read");
goto cleanup;
}
/* NULL termination */
pBuf[rv] = 0;
if (firstTime) {
firstTime = 0;
}
pBuf += rv;
bufRem -= rv;
bufDat = pBuf - buf;
/* Parse the input, starting at the beginning of the buffer.
* Stop when we detect two consecutive \n's (or \r\n's)
* as this signifies the end of the GET or POST portion.
* The posted data follows.
*/
while (reqLen < bufDat && newln < 2) {
int octet = buf[reqLen++];
if (octet == '\n') {
newln++;
} else if (octet != '\r') {
newln = 0;
}
}
/* came to the end of the buffer, or second newln
* If we didn't get an empty line (CRLFCRLF) then keep on reading.
*/
if (newln < 2)
continue;
/* we're at the end of the HTTP request.
* If the request is a POST, then there will be one more
* line of data.
* This parsing is a hack, but ok for SSL test purposes.
*/
post = PORT_Strstr(buf, "POST ");
if (!post || *post != 'P')
break;
postData.data = (void *)(buf + reqLen);
tmp = "content-length: ";
foundStr = PL_strcasestr(buf, tmp);
if (foundStr) {
int expectedPostLen;
int havePostLen;
expectedPostLen = atoi(foundStr + strlen(tmp));
havePostLen = bufDat - reqLen;
if (havePostLen >= expectedPostLen) {
postData.len = expectedPostLen;
break;
}
} else {
/* use legacy hack */
/* It's a post, so look for the next and final CR/LF. */
while (reqLen < bufDat && newln < 3) {
int octet = buf[reqLen++];
if (octet == '\n') {
newln++;
}
}
if (newln == 3)
break;
}
} /* read loop */
bufDat = pBuf - buf;
if (bufDat)
do { /* just close if no data */
/* Have either (a) a complete get, (b) a complete post, (c) EOF */
if (reqLen > 0) {
PRBool isGetOrPost = PR_FALSE;
unsigned skipChars = 0;
isPost = PR_FALSE;
if (!strncmp(buf, getCmd, sizeof getCmd - 1)) {
isGetOrPost = PR_TRUE;
skipChars = 4;
} else if (!strncmp(buf, "POST ", 5)) {
isGetOrPost = PR_TRUE;
isPost = PR_TRUE;
skipChars = 5;
}
if (isGetOrPost) {
char *fnBegin = buf;
char *fnEnd;
char *fnstart = NULL;
PRFileInfo info;
fnBegin += skipChars;
fnEnd = strpbrk(fnBegin, " \r\n");
if (fnEnd) {
int fnLen = fnEnd - fnBegin;
if (fnLen < sizeof fileName) {
strncpy(fileName, fnBegin, fnLen);
fileName[fnLen] = 0; /* null terminate */
fnstart = fileName;
/* strip initial / because our root is the current directory*/
while (*fnstart && *fnstart == '/')
++fnstart;
}
}
if (fnstart) {
if (!strncmp(fnstart, "ocsp", 4)) {
if (isPost) {
if (postData.data) {
isOcspRequest = PR_TRUE;
}
} else {
if (!strncmp(fnstart, "ocsp/", 5)) {
isOcspRequest = PR_TRUE;
getData = fnstart + 5;
}
}
} else {
/* try to open the file named.
* If successful, then write it to the client.
*/
status = PR_GetFileInfo(fnstart, &info);
if (status == PR_SUCCESS &&
info.type == PR_FILE_FILE &&
info.size >= 0) {
local_file_fd = PR_Open(fnstart, PR_RDONLY, 0);
}
}
}
}
}
numIOVs = 0;
iovs[numIOVs].iov_base = (char *)outHeader;
iovs[numIOVs].iov_len = (sizeof(outHeader)) - 1;
numIOVs++;
if (isOcspRequest && caRevoInfos) {
CERTOCSPRequest *request = NULL;
PRBool failThisRequest = PR_FALSE;
PLArenaPool *arena = NULL;
if (ocspMethodsAllowed == ocspGetOnly && postData.len) {
failThisRequest = PR_TRUE;
} else if (ocspMethodsAllowed == ocspPostOnly && getData) {
failThisRequest = PR_TRUE;
} else if (ocspMethodsAllowed == ocspRandomGetFailure && getData) {
if (!(rand() % 2)) {
failThisRequest = PR_TRUE;
}
}
if (failThisRequest) {
PR_Write(ssl_sock, outBadRequestHeader, strlen(outBadRequestHeader));
break;
}
/* get is base64, post is binary.
* If we have base64, convert into the (empty) postData array.
*/
if (getData) {
if (urldecode_base64chars_inplace(getData) == SECSuccess) {
/* The code below can handle a NULL arena */
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
NSSBase64_DecodeBuffer(arena, &postData, getData, strlen(getData));
}
}
if (postData.len) {
request = CERT_DecodeOCSPRequest(&postData);
}
if (arena) {
PORT_FreeArena(arena, PR_FALSE);
arena = NULL;
}
if (!request || !request->tbsRequest ||
!request->tbsRequest->requestList ||
!request->tbsRequest->requestList[0]) {
snprintf(msgBuf, sizeof(msgBuf), "Cannot decode OCSP request.\r\n");
iovs[numIOVs].iov_base = msgBuf;
iovs[numIOVs].iov_len = PORT_Strlen(msgBuf);
numIOVs++;
} else {
/* TODO: support more than one request entry */
CERTOCSPCertID *reqid = request->tbsRequest->requestList[0]->reqCert;
const caRevoInfo *revoInfo = NULL;
PRBool unknown = PR_FALSE;
PRBool revoked = PR_FALSE;
PRTime nextUpdate = 0;
PRTime revoDate = 0;
PRCList *caRevoIter;
caRevoIter = &caRevoInfos->link;
do {
CERTOCSPCertID *caid;
revoInfo = (caRevoInfo *)caRevoIter;
caid = revoInfo->id;
if (SECOID_CompareAlgorithmID(&reqid->hashAlgorithm,
&caid->hashAlgorithm) == SECEqual &&
SECITEM_CompareItem(&reqid->issuerNameHash,
&caid->issuerNameHash) == SECEqual &&
SECITEM_CompareItem(&reqid->issuerKeyHash,
&caid->issuerKeyHash) == SECEqual) {
break;
}
revoInfo = NULL;
caRevoIter = PR_NEXT_LINK(caRevoIter);
} while (caRevoIter != &caRevoInfos->link);
if (!revoInfo) {
unknown = PR_TRUE;
revoInfo = caRevoInfos;
} else {
CERTCrl *crl = &revoInfo->crl->crl;
CERTCrlEntry *entry = NULL;
DER_DecodeTimeChoice(&nextUpdate, &crl->nextUpdate);
if (crl->entries) {
int iv = 0;
/* assign, not compare */
while ((entry = crl->entries[iv++])) {
if (SECITEM_CompareItem(&reqid->serialNumber,
&entry->serialNumber) == SECEqual) {
break;
}
}
}
if (entry) {
/* revoked status response */
revoked = PR_TRUE;
DER_DecodeTimeChoice(&revoDate, &entry->revocationDate);
} else {
/* else good status response */
if (!isPost && ocspMethodsAllowed == ocspGetUnknown) {
unknown = PR_TRUE;
nextUpdate = PR_Now() + (PRTime)60 * 60 * 24 * PR_USEC_PER_SEC; /*tomorrow*/
revoDate = PR_Now() - (PRTime)60 * 60 * 24 * PR_USEC_PER_SEC; /*yesterday*/
}
}
}
{
PRTime now = PR_Now();
CERTOCSPSingleResponse *sr;
CERTOCSPSingleResponse **singleResponses;
SECItem *ocspResponse;
PORT_Assert(!arena);
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (unknown) {
sr = CERT_CreateOCSPSingleResponseUnknown(arena, reqid, now,
&nextUpdate);
} else if (revoked) {
sr = CERT_CreateOCSPSingleResponseRevoked(arena, reqid, now,
&nextUpdate, revoDate, NULL);
} else {
sr = CERT_CreateOCSPSingleResponseGood(arena, reqid, now,
&nextUpdate);
}
/* meaning of value 2: one entry + one end marker */
singleResponses = PORT_ArenaNewArray(arena, CERTOCSPSingleResponse *, 2);
singleResponses[0] = sr;
singleResponses[1] = NULL;
ocspResponse = CERT_CreateEncodedOCSPSuccessResponse(arena,
revoInfo->cert, ocspResponderID_byName, now,
singleResponses, &pwdata);
if (!ocspResponse) {
snprintf(msgBuf, sizeof(msgBuf), "Failed to encode response\r\n");
iovs[numIOVs].iov_base = msgBuf;
iovs[numIOVs].iov_len = PORT_Strlen(msgBuf);
numIOVs++;
} else {
PR_Write(ssl_sock, outOcspHeader, strlen(outOcspHeader));
PR_Write(ssl_sock, ocspResponse->data, ocspResponse->len);
}
PORT_FreeArena(arena, PR_FALSE);
}
CERT_DestroyOCSPRequest(request);
break;
}
} else if (local_file_fd) {
PRInt32 bytes;
int errLen;
bytes = PR_TransmitFile(ssl_sock, local_file_fd, outHeader,
sizeof outHeader - 1,
PR_TRANSMITFILE_KEEP_OPEN,
PR_INTERVAL_NO_TIMEOUT);
if (bytes >= 0) {
bytes -= sizeof outHeader - 1;
FPRINTF(stderr,
"httpserv: PR_TransmitFile wrote %d bytes from %s\n",
bytes, fileName);
break;
}
errString = errWarn("PR_TransmitFile");
errLen = PORT_Strlen(errString);
errLen = PR_MIN(errLen, sizeof msgBuf - 1);
PORT_Memcpy(msgBuf, errString, errLen);
msgBuf[errLen] = 0;
iovs[numIOVs].iov_base = msgBuf;
iovs[numIOVs].iov_len = PORT_Strlen(msgBuf);
numIOVs++;
} else if (reqLen <= 0) { /* hit eof */
snprintf(msgBuf, sizeof(msgBuf), "Get or Post incomplete after %d bytes.\r\n",
bufDat);
iovs[numIOVs].iov_base = msgBuf;
iovs[numIOVs].iov_len = PORT_Strlen(msgBuf);
numIOVs++;
} else if (reqLen < bufDat) {
snprintf(msgBuf, sizeof(msgBuf), "Discarded %d characters.\r\n",
bufDat - reqLen);
iovs[numIOVs].iov_base = msgBuf;
iovs[numIOVs].iov_len = PORT_Strlen(msgBuf);
numIOVs++;
}
if (reqLen > 0) {
if (verbose > 1)
fwrite(buf, 1, reqLen, stdout); /* display it */
iovs[numIOVs].iov_base = buf;
iovs[numIOVs].iov_len = reqLen;
numIOVs++;
}
rv = PR_Writev(ssl_sock, iovs, numIOVs, PR_INTERVAL_NO_TIMEOUT);
if (rv < 0) {
errWarn("PR_Writev");
break;
}
} while (0);
cleanup:
if (ssl_sock) {
PR_Close(ssl_sock);
} else if (tcp_sock) {
PR_Close(tcp_sock);
}
if (local_file_fd)
PR_Close(local_file_fd);
VLOG(("httpserv: handle_connection: exiting\n"));
/* do a nice shutdown if asked. */
if (!strncmp(buf, stopCmd, sizeof stopCmd - 1)) {
VLOG(("httpserv: handle_connection: stop command"));
stop_server();
}
VLOG(("httpserv: handle_connection: exiting"));
return SECSuccess; /* success */
}
#ifdef XP_UNIX
void
sigusr1_handler(int sig)
{
VLOG(("httpserv: sigusr1_handler: stop server"));
stop_server();
}
#endif
SECStatus
do_accepts(
PRFileDesc *listen_sock,
PRFileDesc *model_sock,
int requestCert)
{
PRNetAddr addr;
PRErrorCode perr;
#ifdef XP_UNIX
struct sigaction act;
#endif
VLOG(("httpserv: do_accepts: starting"));
PR_SetThreadPriority(PR_GetCurrentThread(), PR_PRIORITY_HIGH);
acceptorThread = PR_GetCurrentThread();
#ifdef XP_UNIX
/* set up the signal handler */
act.sa_handler = sigusr1_handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
if (sigaction(SIGUSR1, &act, NULL)) {
fprintf(stderr, "Error installing signal handler.\n");
exit(1);
}
#endif
while (!stopping) {
PRFileDesc *tcp_sock;
PRCList *myLink;
FPRINTF(stderr, "\n\n\nhttpserv: About to call accept.\n");
tcp_sock = PR_Accept(listen_sock, &addr, PR_INTERVAL_NO_TIMEOUT);
if (tcp_sock == NULL) {
perr = PR_GetError();
if ((perr != PR_CONNECT_RESET_ERROR &&
perr != PR_PENDING_INTERRUPT_ERROR) ||
verbose) {
errWarn("PR_Accept");
}
if (perr == PR_CONNECT_RESET_ERROR) {
FPRINTF(stderr,
"Ignoring PR_CONNECT_RESET_ERROR error - continue\n");
continue;
}
stopping = 1;
break;
}
VLOG(("httpserv: do_accept: Got connection\n"));
PZ_Lock(qLock);
while (PR_CLIST_IS_EMPTY(&freeJobs) && !stopping) {
PZ_WaitCondVar(freeListNotEmptyCv, PR_INTERVAL_NO_TIMEOUT);
}
if (stopping) {
PZ_Unlock(qLock);
if (tcp_sock) {
PR_Close(tcp_sock);
}
break;
}
myLink = PR_LIST_HEAD(&freeJobs);
PR_REMOVE_AND_INIT_LINK(myLink);
/* could release qLock here and reaquire it 7 lines below, but
** why bother for 4 assignment statements?
*/
{
JOB *myJob = (JOB *)myLink;
myJob->tcp_sock = tcp_sock;
myJob->model_sock = model_sock;
myJob->requestCert = requestCert;
}
PR_APPEND_LINK(myLink, &jobQ);
PZ_NotifyCondVar(jobQNotEmptyCv);
PZ_Unlock(qLock);
}
FPRINTF(stderr, "httpserv: Closing listen socket.\n");
VLOG(("httpserv: do_accepts: exiting"));
if (listen_sock) {
PR_Close(listen_sock);
}
return SECSuccess;
}
PRFileDesc *
getBoundListenSocket(unsigned short port)
{
PRFileDesc *listen_sock;
int listenQueueDepth = 5 + (2 * maxThreads);
PRStatus prStatus;
PRNetAddr addr;
PRSocketOptionData opt;
addr.inet.family = PR_AF_INET;
addr.inet.ip = PR_htonl(PR_INADDR_ANY);
addr.inet.port = PR_htons(port);
listen_sock = PR_NewTCPSocket();
if (listen_sock == NULL) {
errExit("PR_NewTCPSocket");
}
opt.option = PR_SockOpt_Nonblocking;
opt.value.non_blocking = PR_FALSE;
prStatus = PR_SetSocketOption(listen_sock, &opt);
if (prStatus < 0) {
PR_Close(listen_sock);
errExit("PR_SetSocketOption(PR_SockOpt_Nonblocking)");
}
opt.option = PR_SockOpt_Reuseaddr;
opt.value.reuse_addr = PR_TRUE;
prStatus = PR_SetSocketOption(listen_sock, &opt);
if (prStatus < 0) {
PR_Close(listen_sock);
errExit("PR_SetSocketOption(PR_SockOpt_Reuseaddr)");
}
#ifndef WIN95
/* Set PR_SockOpt_Linger because it helps prevent a server bind issue