/*
* cons options into a big buffer, and then split them out into the
* three separate buffers if needed. This allows us to cons up a set of
* vendor options using the same routine.
*/
int
cons_options(struct packet *inpacket, struct dhcp_packet *outpacket,
int mms, struct tree_cache **options,
int overload, /* Overload flags that may be set. */
int terminate, int bootpp, u_int8_t *prl, int prl_len)
{
unsigned char priority_list[256];
unsigned char buffer[4096]; /* Really big buffer... */
size_t main_buffer_size;
size_t option_size;
int bufix;
/*
* If the client has provided a maximum DHCP message size, use
* that; otherwise, if it's BOOTP, only 64 bytes; otherwise use
* up to the minimum IP MTU size (576 bytes).
*
* XXX if a BOOTP client specifies a max message size, we will
* honor it.
*/
if (!mms &&
inpacket &&
inpacket->options[DHO_DHCP_MAX_MESSAGE_SIZE].data &&
(inpacket->options[DHO_DHCP_MAX_MESSAGE_SIZE].len >=
sizeof(u_int16_t))) {
mms = get_u_short(
inpacket->options[DHO_DHCP_MAX_MESSAGE_SIZE].data);
}
if (mms) {
if (mms < 576)
mms = 576; /* mms must be >= minimum IP MTU */
main_buffer_size = mms - DHCP_FIXED_LEN;
} else if (bootpp)
main_buffer_size = 64;
else
main_buffer_size = 576 - DHCP_FIXED_LEN;
if (main_buffer_size > sizeof(outpacket->options))
main_buffer_size = sizeof(outpacket->options);
/*
* Initialize the available buffers, some or all of which may not be
* used.
*/
memset(outpacket->options, DHO_PAD, sizeof(outpacket->options));
if (overload & 1)
(void)memset(outpacket->file, DHO_PAD, DHCP_FILE_LEN);
if (overload & 2)
(void)memset(outpacket->sname, DHO_PAD, DHCP_SNAME_LEN);
if (bootpp)
overload = 0; /* Don't use overload buffers for bootp! */
/*
* Get complete list of possible options in priority order. Use the
* list provided in the options. Lacking that use the list provided by
* prl. If that is not available just use the default list.
*/
bzero(&priority_list, sizeof(priority_list));
if (inpacket && inpacket->options[DHO_DHCP_PARAMETER_REQUEST_LIST].data)
create_priority_list(priority_list,
inpacket->options[DHO_DHCP_PARAMETER_REQUEST_LIST].data,
inpacket->options[DHO_DHCP_PARAMETER_REQUEST_LIST].len);
else if (prl)
create_priority_list(priority_list, prl, prl_len);
else
create_priority_list(priority_list, NULL, 0);
/*
* Copy the options into the big buffer, including leading cookie and
* DHCP_OVERLOAD_OPTION, and DHO_END if it fits. All unused space will
* be set to DHO_PAD
*/
option_size = store_options(buffer, main_buffer_size, options,
priority_list, overload, terminate);
if (option_size == 0)
return (DHCP_FIXED_NON_UDP);
/* Copy the main buffer. */
(void)memcpy(&outpacket->options[0], buffer, main_buffer_size);
if (option_size <= main_buffer_size)
return (DHCP_FIXED_NON_UDP + option_size);
/* Copy the overflow buffers. */
bufix = main_buffer_size;
if (overload & 1) {
(void)memcpy(outpacket->file, &buffer[bufix], DHCP_FILE_LEN);
bufix += DHCP_FILE_LEN;
}
if (overload & 2)
(void)memcpy(outpacket->sname, &buffer[bufix], DHCP_SNAME_LEN);
return (DHCP_FIXED_NON_UDP + main_buffer_size);
}
/*******************************************************************************
* Configure a static FastCGI server.
*/
const char *fcgi_config_new_static_server(cmd_parms *cmd, void *dummy, const char *arg)
{
fcgi_server *s;
pool *p = cmd->pool, *tp = cmd->temp_pool;
const char *name = cmd->cmd->name;
char *fs_path = ap_getword_conf(p, &arg);
const char *option, *err;
/* Allocate temp storage for the array of initial environment variables */
char **envp = ap_pcalloc(tp, sizeof(char *) * (MAX_INIT_ENV_VARS + 3));
unsigned int envc = 0;
#ifdef WIN32
HANDLE mutex;
#endif
err = ap_check_cmd_context(cmd, NOT_IN_LIMIT|NOT_IN_DIR_LOC_FILE);
if (err)
{
return err;
}
if (*fs_path == '\0')
return "AppClass requires a pathname!?";
if ((err = fcgi_config_set_fcgi_uid_n_gid(1)) != NULL)
return ap_psprintf(tp, "%s %s: %s", name, fs_path, err);
#ifdef APACHE2
if (apr_filepath_merge(&fs_path, "", fs_path, 0, p))
return ap_psprintf(tp, "%s %s: invalid filepath", name, fs_path);
#else
fs_path = ap_os_canonical_filename(p, fs_path);
#endif
fs_path = ap_server_root_relative(p, fs_path);
ap_getparents(fs_path);
ap_no2slash(fs_path);
/* See if we've already got one of these configured */
s = fcgi_util_fs_get_by_id(fs_path, fcgi_util_get_server_uid(cmd->server),
fcgi_util_get_server_gid(cmd->server));
if (s != NULL) {
if (fcgi_wrapper) {
return ap_psprintf(tp,
"%s: redefinition of a previously defined FastCGI "
"server \"%s\" with uid=%ld and gid=%ld",
name, fs_path, (long) fcgi_util_get_server_uid(cmd->server),
(long) fcgi_util_get_server_gid(cmd->server));
}
else {
return ap_psprintf(tp,
"%s: redefinition of a previously defined FastCGI server \"%s\"",
name, fs_path);
}
}
err = fcgi_util_fs_is_path_ok(tp, fs_path, NULL);
if (err != NULL) {
return ap_psprintf(tp, "%s: \"%s\" %s", name, fs_path, err);
}
s = fcgi_util_fs_new(p);
s->fs_path = fs_path;
s->directive = APP_CLASS_STANDARD;
s->restartOnExit = TRUE;
s->numProcesses = 1;
#ifdef WIN32
/* TCP FastCGI applications require SystemRoot be present in the environment
* Put it in both for consistency to the application */
fcgi_config_set_env_var(p, envp, &envc, "SystemRoot");
mutex = CreateMutex(NULL, FALSE, fs_path);
if (mutex == NULL)
{
ap_log_error(FCGI_LOG_ALERT, fcgi_apache_main_server,
"FastCGI: CreateMutex() failed");
return "failed to create FastCGI application accept mutex";
}
SetHandleInformation(mutex, HANDLE_FLAG_INHERIT, TRUE);
s->mutex_env_string = ap_psprintf(p, "_FCGI_MUTEX_=%ld", mutex);
#endif
/* Parse directive arguments */
while (*arg) {
option = ap_getword_conf(tp, &arg);
if (strcasecmp(option, "-processes") == 0) {
if ((err = get_u_int(tp, &arg, &s->numProcesses, 1)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-restart-delay") == 0) {
if ((err = get_u_int(tp, &arg, &s->restartDelay, 0)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-init-start-delay") == 0) {
if ((err = get_int(tp, &arg, &s->initStartDelay, 0)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-min-server-life") == 0) {
if ((err = get_u_int(tp, &arg, &s->minServerLife, 0)))
return invalid_value(tp, name, NULL, option, err);
}
else if (strcasecmp(option, "-priority") == 0) {
if ((err = get_u_int(tp, &arg, &s->processPriority, 0)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-listen-queue-depth") == 0) {
if ((err = get_u_int(tp, &arg, &s->listenQueueDepth, 1)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-appConnTimeout") == 0) {
if ((err = get_u_int(tp, &arg, &s->appConnectTimeout, 0)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-idle-timeout") == 0) {
if ((err = get_u_int(tp, &arg, &s->idle_timeout, 1)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-port") == 0) {
if ((err = get_u_short(tp, &arg, &s->port, 1)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-socket") == 0) {
s->socket_path = ap_getword_conf(tp, &arg);
if (*s->socket_path == '\0')
return invalid_value(tp, name, fs_path, option, "\"\"");
}
else if (strcasecmp(option, "-initial-env") == 0) {
if ((err = get_env_var(p, &arg, envp, &envc)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-pass-header") == 0) {
if ((err = get_pass_header(p, &arg, &s->pass_headers)))
return invalid_value(tp, name, fs_path, option, err);
}
else if (strcasecmp(option, "-flush") == 0) {
s->flush = 1;
}
else if (strcasecmp(option, "-nph") == 0) {
s->nph = 1;
}
else if (strcasecmp(option, "-user") == 0) {
#ifdef WIN32
return ap_psprintf(tp,
"%s %s: the -user option isn't supported on WIN", name, fs_path);
#else
s->user = ap_getword_conf(tp, &arg);
if (*s->user == '\0')
return invalid_value(tp, name, fs_path, option, "\"\"");
#endif
}
else if (strcasecmp(option, "-group") == 0) {
#ifdef WIN32
return ap_psprintf(tp,
"%s %s: the -group option isn't supported on WIN", name, fs_path);
#else
s->group = ap_getword_conf(tp, &arg);
if (*s->group == '\0')
return invalid_value(tp, name, fs_path, option, "\"\"");
#endif
}
else {
return ap_psprintf(tp, "%s %s: invalid option: %s", name, fs_path, option);
}
} /* while */
#ifndef WIN32
if (fcgi_wrapper)
{
if (s->group == NULL)
{
s->group = ap_psprintf(tp, "#%ld", (long)fcgi_util_get_server_gid(cmd->server));
}
if (s->user == NULL)
{
s->user = ap_psprintf(p, "#%ld", (long)fcgi_util_get_server_uid(cmd->server));
}
s->uid = ap_uname2id(s->user);
s->gid = ap_gname2id(s->group);
}
else if (s->user || s->group)
{
ap_log_error(FCGI_LOG_WARN, cmd->server, "FastCGI: there is no "
"fastcgi wrapper set, user/group options are ignored");
}
if ((err = fcgi_util_fs_set_uid_n_gid(p, s, s->uid, s->gid)))
{
return ap_psprintf(tp,
"%s %s: invalid user or group: %s", name, fs_path, err);
}
#endif /* !WIN32 */
if (s->socket_path != NULL && s->port != 0) {
return ap_psprintf(tp,
"%s %s: -port and -socket are mutually exclusive options",
name, fs_path);
}
/* Move env array to a surviving pool */
s->envp = (char **)ap_pcalloc(p, sizeof(char *) * (envc + 4));
memcpy(s->envp, envp, sizeof(char *) * envc);
/* Initialize process structs */
s->procs = fcgi_util_fs_create_procs(p, s->numProcesses);
/* Build the appropriate sockaddr structure */
if (s->port != 0) {
err = fcgi_util_socket_make_inet_addr(p, (struct sockaddr_in **)&s->socket_addr,
&s->socket_addr_len, NULL, s->port);
if (err != NULL)
return ap_psprintf(tp, "%s %s: %s", name, fs_path, err);
#ifdef WIN32
err = fcgi_util_socket_make_inet_addr(p, (struct sockaddr_in **)&s->dest_addr,
&s->socket_addr_len, "localhost", s->port);
if (err != NULL)
return ap_psprintf(tp, "%s %s: %s", name, fs_path, err);
#endif
} else {
if (s->socket_path == NULL)
s->socket_path = fcgi_util_socket_hash_filename(tp, fs_path, s->user, s->group);
if (fcgi_socket_dir == NULL)
{
#ifdef WIN32
fcgi_socket_dir = DEFAULT_SOCK_DIR;
#else
fcgi_socket_dir = ap_server_root_relative(p, DEFAULT_SOCK_DIR);
#endif
}
s->socket_path = fcgi_util_socket_make_path_absolute(p, s->socket_path, 0);
#ifndef WIN32
err = fcgi_util_socket_make_domain_addr(p, (struct sockaddr_un **)&s->socket_addr,
&s->socket_addr_len, s->socket_path);
if (err != NULL)
return ap_psprintf(tp, "%s %s: %s", name, fs_path, err);
#endif
}
/* Add it to the list of FastCGI servers */
fcgi_util_fs_add(s);
return NULL;
}