ReactOS 0.4.15-dev-8207-gd73a838
dhclient.c File Reference
#include <rosdhcp.h>
Include dependency graph for dhclient.c:

Go to the source code of this file.

Macros

#define PERIOD   0x2e
 
#define hyphenchar(c)   ((c) == 0x2d)
 
#define bslashchar(c)   ((c) == 0x5c)
 
#define periodchar(c)   ((c) == PERIOD)
 
#define asterchar(c)   ((c) == 0x2a)
 
#define alphachar(c)
 
#define digitchar(c)   ((c) >= 0x30 && (c) <= 0x39)
 
#define borderchar(c)   (alphachar(c) || digitchar(c))
 
#define middlechar(c)   (borderchar(c) || hyphenchar(c))
 
#define domainchar(c)   ((c) > 0x20 && (c) < 0x7f)
 
#define ASSERT_STATE(state_is, state_shouldbe)   {}
 
#define TIME_MAX   2147483647
 
#define ADVANCE(x, n)   (x += ROUNDUP((n)->sa_len))
 

Functions

void usage (void)
 
int check_option (struct client_lease *l, int option)
 
int ipv4addrs (char *buf)
 
int res_hnok (const char *dn)
 
charoption_as_string (unsigned int code, unsigned char *data, int len)
 
int fork_privchld (int, int)
 
int check_arp (struct interface_info *ip, struct client_lease *lp)
 
int init_client (void)
 
void stop_client (void)
 
void state_reboot (void *ipp)
 
void state_init (void *ipp)
 
void state_selecting (void *ipp)
 
void dhcpack (struct packet *packet)
 
void set_name_servers (PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
 
void set_domain (PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
 
void setup_adapter (PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
 
void bind_lease (struct interface_info *ip)
 
void state_bound (void *ipp)
 
void bootp (struct packet *packet)
 
void dhcp (struct packet *packet)
 
void dhcpoffer (struct packet *packet)
 
struct client_leasepacket_to_lease (struct packet *packet)
 
void dhcpnak (struct packet *packet)
 
void send_discover (void *ipp)
 
void state_panic (void *ipp)
 
void send_request (void *ipp)
 
void send_decline (void *ipp)
 
void make_discover (struct interface_info *ip, struct client_lease *lease)
 
void make_request (struct interface_info *ip, struct client_lease *lease)
 
void make_decline (struct interface_info *ip, struct client_lease *lease)
 
void free_client_lease (struct client_lease *lease)
 
void rewrite_client_leases (struct interface_info *ifi)
 
void write_client_lease (struct interface_info *ip, struct client_lease *lease, int rewrite)
 
void priv_script_init (struct interface_info *ip, char *reason, char *medium)
 
void priv_script_write_params (struct interface_info *ip, char *prefix, struct client_lease *lease)
 
int dhcp_option_ev_name (char *buf, size_t buflen, struct dhcp_option *option)
 

Variables

unsigned long debug_trace_level = 0
 
charpath_dhclient_conf = _PATH_DHCLIENT_CONF
 
charpath_dhclient_db = NULL
 
int log_perror = 1
 
int privfd
 
struct iaddr iaddr_broadcast = { 4, { 255, 255, 255, 255 } }
 
struct in_addr inaddr_any
 
struct sockaddr_in sockaddr_broadcast
 
int log_priority
 
int no_daemon
 
int unknown_ok = 1
 
int routefd
 
time_t scripttime
 
FILEleaseFile
 

Macro Definition Documentation

◆ ADVANCE

#define ADVANCE (   x,
  n 
)    (x += ROUNDUP((n)->sa_len))

Definition at line 105 of file dhclient.c.

◆ alphachar

#define alphachar (   c)
Value:
(((c) >= 0x41 && (c) <= 0x5a) || \
((c) >= 0x61 && (c) <= 0x7a))
const GLubyte * c
Definition: glext.h:8905
#define c
Definition: ke_i.h:80

Definition at line 63 of file dhclient.c.

◆ ASSERT_STATE

#define ASSERT_STATE (   state_is,
  state_shouldbe 
)    {}

Definition at line 88 of file dhclient.c.

◆ asterchar

#define asterchar (   c)    ((c) == 0x2a)

Definition at line 62 of file dhclient.c.

◆ borderchar

#define borderchar (   c)    (alphachar(c) || digitchar(c))

Definition at line 67 of file dhclient.c.

◆ bslashchar

#define bslashchar (   c)    ((c) == 0x5c)

Definition at line 60 of file dhclient.c.

◆ digitchar

#define digitchar (   c)    ((c) >= 0x30 && (c) <= 0x39)

Definition at line 65 of file dhclient.c.

◆ domainchar

#define domainchar (   c)    ((c) > 0x20 && (c) < 0x7f)

Definition at line 69 of file dhclient.c.

◆ hyphenchar

#define hyphenchar (   c)    ((c) == 0x2d)

Definition at line 59 of file dhclient.c.

◆ middlechar

#define middlechar (   c)    (borderchar(c) || hyphenchar(c))

Definition at line 68 of file dhclient.c.

◆ PERIOD

#define PERIOD   0x2e

Definition at line 58 of file dhclient.c.

◆ periodchar

#define periodchar (   c)    ((c) == PERIOD)

Definition at line 61 of file dhclient.c.

◆ TIME_MAX

#define TIME_MAX   2147483647

Definition at line 90 of file dhclient.c.

Function Documentation

◆ bind_lease()

void bind_lease ( struct interface_info ip)

Definition at line 580 of file dhclient.c.

581{
582 PDHCP_ADAPTER Adapter;
583 struct client_lease *new_lease = ip->client->new;
585
586 time(&cur_time);
587
588 /* Remember the medium. */
589 ip->client->new->medium = ip->client->medium;
590
591 /* Replace the old active lease with the new one. */
592 if (ip->client->active)
593 free_client_lease(ip->client->active);
594 ip->client->active = ip->client->new;
595 ip->client->new = NULL;
596
597 /* Set up a timeout to start the renewal process. */
598 /* Timeout of zero means no timeout (some implementations seem to use
599 * one day).
600 */
601 if( ip->client->active->renewal - cur_time )
602 add_timeout(ip->client->active->renewal, state_bound, ip);
603
604 note("bound to %s -- renewal in %ld seconds.",
605 piaddr(ip->client->active->address),
606 (long int)(ip->client->active->renewal - cur_time));
607
608 ip->client->state = S_BOUND;
609
610 Adapter = AdapterFindInfo( ip );
611
612 if( Adapter ) setup_adapter( Adapter, new_lease );
613 else {
614 warning("Could not find adapter for info %p\n", ip);
615 return;
616 }
617 set_name_servers( Adapter, new_lease );
618 set_domain( Adapter, new_lease );
619}
PDHCP_ADAPTER AdapterFindInfo(struct interface_info *ip)
Definition: adapter.c:526
void add_timeout(time_t when, void(*where)(void *), void *what)
Definition: dispatch.c:253
int note(char *format,...)
Definition: util.c:12
char * piaddr(struct iaddr addr)
Definition: util.c:6
void free_client_lease(struct client_lease *lease)
Definition: dhclient.c:1515
void state_bound(void *ipp)
Definition: dhclient.c:628
void setup_adapter(PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
Definition: dhclient.c:492
void set_domain(PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
Definition: dhclient.c:443
void set_name_servers(PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
Definition: dhclient.c:398
time_t cur_time
@ S_BOUND
Definition: dhcpd.h:175
#define NULL
Definition: types.h:112
__kernel_time_t time_t
Definition: linux.h:252
__u16 time
Definition: mkdosfs.c:8
#define warning(s)
Definition: debug.h:83
Definition: dhcpd.h:62

Referenced by dhcpack(), and state_selecting().

◆ bootp()

void bootp ( struct packet packet)

Definition at line 654 of file dhclient.c.

655{
656 struct iaddrlist *ap;
657
658 if (packet->raw->op != BOOTREPLY)
659 return;
660
661 /* If there's a reject list, make sure this packet's sender isn't
662 on it. */
663 for (ap = packet->interface->client->config->reject_list;
664 ap; ap = ap->next) {
665 if (addr_eq(packet->client_addr, ap->addr)) {
666 note("BOOTREPLY from %s rejected.", piaddr(ap->addr));
667 return;
668 }
669 }
671}
int addr_eq(struct iaddr a, struct iaddr b)
Definition: util.c:100
#define BOOTREPLY
Definition: dhcp.h:79
void dhcpoffer(struct packet *packet)
Definition: dhclient.c:710
Definition: dhcpd.h:135
struct dhcp_packet * raw
Definition: dhcpd.h:136
struct interface_info * interface
Definition: dhcpd.h:142
struct iaddr client_addr
Definition: dhcpd.h:141
void int int ULONGLONG int va_list * ap
Definition: winesup.h:36

Referenced by do_packet().

◆ check_arp()

int check_arp ( struct interface_info ip,
struct client_lease lp 
)

Definition at line 137 of file dhclient.c.

137 {
138 return 1;
139}

Referenced by dhcpoffer(), and state_selecting().

◆ check_option()

int check_option ( struct client_lease l,
int  option 
)

Definition at line 1813 of file dhclient.c.

1814{
1815 char *opbuf;
1816 char *sbuf;
1817
1818 /* we use this, since this is what gets passed to dhclient-script */
1819
1820 opbuf = pretty_print_option(option, l->options[option].data,
1821 l->options[option].len, 0, 0);
1822
1823 sbuf = option_as_string(option, l->options[option].data,
1824 l->options[option].len);
1825
1826 switch (option) {
1827 case DHO_SUBNET_MASK:
1828 case DHO_TIME_SERVERS:
1829 case DHO_NAME_SERVERS:
1830 case DHO_ROUTERS:
1832 case DHO_LOG_SERVERS:
1833 case DHO_COOKIE_SERVERS:
1834 case DHO_LPR_SERVERS:
1837 case DHO_SWAP_SERVER:
1839 case DHO_NIS_SERVERS:
1840 case DHO_NTP_SERVERS:
1843 case DHO_FONT_SERVERS:
1845 if (!ipv4addrs(opbuf)) {
1846 warning("Invalid IP address in option(%d): %s", option, opbuf);
1847 return (0);
1848 }
1849 return (1) ;
1850 case DHO_HOST_NAME:
1851 case DHO_DOMAIN_NAME:
1852 case DHO_NIS_DOMAIN:
1853 if (!res_hnok(sbuf))
1854 warning("Bogus Host Name option %d: %s (%s)", option,
1855 sbuf, opbuf);
1856 return (1);
1857 case DHO_PAD:
1858 case DHO_TIME_OFFSET:
1859 case DHO_BOOT_SIZE:
1860 case DHO_MERIT_DUMP:
1861 case DHO_ROOT_PATH:
1863 case DHO_IP_FORWARDING:
1865 case DHO_POLICY_FILTER:
1867 case DHO_DEFAULT_IP_TTL:
1870 case DHO_INTERFACE_MTU:
1873 case DHO_MASK_SUPPLIER:
1876 case DHO_STATIC_ROUTES:
1885 case DHO_NETBIOS_SCOPE:
1892 case DHO_DHCP_MESSAGE:
1899 case DHO_END:
1900 return (1);
1901 default:
1902 warning("unknown dhcp option value 0x%x", option);
1903 return (unknown_ok);
1904 }
1905}
char * pretty_print_option(unsigned int code, unsigned char *data, int len, int emit_commas, int emit_quotes)
Definition: options.c:396
#define DHO_DHCP_MESSAGE
Definition: dhcp.h:152
#define DHO_MASK_SUPPLIER
Definition: dhcp.h:126
#define DHO_TCP_KEEPALIVE_GARBAGE
Definition: dhcp.h:135
#define DHO_DHCP_MAX_MESSAGE_SIZE
Definition: dhcp.h:153
#define DHO_ROUTER_DISCOVERY
Definition: dhcp.h:127
#define DHO_NAME_SERVERS
Definition: dhcp.h:101
#define DHO_VENDOR_ENCAPSULATED_OPTIONS
Definition: dhcp.h:139
#define DHO_PERFORM_MASK_DISCOVERY
Definition: dhcp.h:125
#define DHO_NIS_SERVERS
Definition: dhcp.h:137
#define DHO_NON_LOCAL_SOURCE_ROUTING
Definition: dhcp.h:116
#define DHO_NTP_SERVERS
Definition: dhcp.h:138
#define DHO_MERIT_DUMP
Definition: dhcp.h:110
#define DHO_NETBIOS_NAME_SERVERS
Definition: dhcp.h:140
#define DHO_DHCP_PARAMETER_REQUEST_LIST
Definition: dhcp.h:151
#define DHO_FONT_SERVERS
Definition: dhcp.h:144
#define DHO_NETBIOS_SCOPE
Definition: dhcp.h:143
#define DHO_LOG_SERVERS
Definition: dhcp.h:103
#define DHO_NETBIOS_NODE_TYPE
Definition: dhcp.h:142
#define DHO_NIS_DOMAIN
Definition: dhcp.h:136
#define DHO_PAD
Definition: dhcp.h:96
#define DHO_HOST_NAME
Definition: dhcp.h:108
#define DHO_TCP_KEEPALIVE_INTERVAL
Definition: dhcp.h:134
#define DHO_BROADCAST_ADDRESS
Definition: dhcp.h:124
#define DHO_TIME_SERVERS
Definition: dhcp.h:100
#define DHO_NETBIOS_DD_SERVER
Definition: dhcp.h:141
#define DHO_IP_FORWARDING
Definition: dhcp.h:115
#define DHO_IMPRESS_SERVERS
Definition: dhcp.h:106
#define DHO_TRAILER_ENCAPSULATION
Definition: dhcp.h:130
#define DHO_PATH_MTU_PLATEAU_TABLE
Definition: dhcp.h:121
#define DHO_DHCP_USER_CLASS_ID
Definition: dhcp.h:158
#define DHO_EXTENSIONS_PATH
Definition: dhcp.h:114
#define DHO_DHCP_CLIENT_IDENTIFIER
Definition: dhcp.h:157
#define DHO_TIME_OFFSET
Definition: dhcp.h:98
#define DHO_DEFAULT_TCP_TTL
Definition: dhcp.h:133
#define DHO_DHCP_MESSAGE_TYPE
Definition: dhcp.h:149
#define DHO_INTERFACE_MTU
Definition: dhcp.h:122
#define DHO_X_DISPLAY_MANAGER
Definition: dhcp.h:145
#define DHO_POLICY_FILTER
Definition: dhcp.h:117
#define DHO_ALL_SUBNETS_LOCAL
Definition: dhcp.h:123
#define DHO_MAX_DGRAM_REASSEMBLY
Definition: dhcp.h:118
#define DHO_END
Definition: dhcp.h:159
#define DHO_COOKIE_SERVERS
Definition: dhcp.h:104
#define DHO_DOMAIN_NAME
Definition: dhcp.h:111
#define DHO_DHCP_RENEWAL_TIME
Definition: dhcp.h:154
#define DHO_SWAP_SERVER
Definition: dhcp.h:112
#define DHO_DOMAIN_NAME_SERVERS
Definition: dhcp.h:102
#define DHO_DEFAULT_IP_TTL
Definition: dhcp.h:119
#define DHO_BOOT_SIZE
Definition: dhcp.h:109
#define DHO_DHCP_REBINDING_TIME
Definition: dhcp.h:155
#define DHO_DHCP_OPTION_OVERLOAD
Definition: dhcp.h:148
#define DHO_DHCP_SERVER_IDENTIFIER
Definition: dhcp.h:150
#define DHO_ROOT_PATH
Definition: dhcp.h:113
#define DHO_ARP_CACHE_TIMEOUT
Definition: dhcp.h:131
#define DHO_ROUTERS
Definition: dhcp.h:99
#define DHO_IEEE802_3_ENCAPSULATION
Definition: dhcp.h:132
#define DHO_DHCP_REQUESTED_ADDRESS
Definition: dhcp.h:146
#define DHO_DHCP_LEASE_TIME
Definition: dhcp.h:147
#define DHO_STATIC_ROUTES
Definition: dhcp.h:129
#define DHO_SUBNET_MASK
Definition: dhcp.h:97
#define DHO_DHCP_CLASS_IDENTIFIER
Definition: dhcp.h:156
#define DHO_LPR_SERVERS
Definition: dhcp.h:105
#define DHO_ROUTER_SOLICITATION_ADDRESS
Definition: dhcp.h:128
#define DHO_PATH_MTU_AGING_TIMEOUT
Definition: dhcp.h:120
#define DHO_RESOURCE_LOCATION_SERVERS
Definition: dhcp.h:107
r l[0]
Definition: byte_order.h:168
int unknown_ok
Definition: dhclient.c:94
int ipv4addrs(char *buf)
Definition: dhclient.c:1937
char * option_as_string(unsigned int code, unsigned char *data, int len)
Definition: dhclient.c:1957
int res_hnok(const char *dn)
Definition: dhclient.c:1908
Definition: getopt.h:109

Referenced by packet_to_lease().

◆ dhcp()

void dhcp ( struct packet packet)

Definition at line 674 of file dhclient.c.

675{
676 struct iaddrlist *ap;
677 void (*handler)(struct packet *);
678 char *type;
679
680 switch (packet->packet_type) {
681 case DHCPOFFER:
683 type = "DHCPOFFER";
684 break;
685 case DHCPNAK:
687 type = "DHCPNACK";
688 break;
689 case DHCPACK:
691 type = "DHCPACK";
692 break;
693 default:
694 return;
695 }
696
697 /* If there's a reject list, make sure this packet's sender isn't
698 on it. */
699 for (ap = packet->interface->client->config->reject_list;
700 ap; ap = ap->next) {
701 if (addr_eq(packet->client_addr, ap->addr)) {
702 note("%s from %s rejected.", type, piaddr(ap->addr));
703 return;
704 }
705 }
706 (*handler)(packet);
707}
#define DHCPNAK
Definition: dhcp.h:167
#define DHCPACK
Definition: dhcp.h:166
#define DHCPOFFER
Definition: dhcp.h:163
void dhcpnak(struct packet *packet)
Definition: dhclient.c:915
void dhcpack(struct packet *packet)
Definition: dhclient.c:316
UINT(* handler)(MSIPACKAGE *)
Definition: action.c:7482
GLuint GLuint GLsizei GLenum type
Definition: gl.h:1545
int packet_type
Definition: dhcpd.h:138

Referenced by do_packet().

◆ dhcp_option_ev_name()

int dhcp_option_ev_name ( char buf,
size_t  buflen,
struct dhcp_option option 
)

Definition at line 1767 of file dhclient.c.

1768{
1769 int i;
1770
1771 for (i = 0; option->name[i]; i++) {
1772 if (i + 1 == buflen)
1773 return 0;
1774 if (option->name[i] == '-')
1775 buf[i] = '_';
1776 else
1777 buf[i] = option->name[i];
1778 }
1779
1780 buf[i] = 0;
1781 return 1;
1782}
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
WCHAR * name
Definition: getopt.h:110

Referenced by priv_script_write_params().

◆ dhcpack()

void dhcpack ( struct packet packet)

Definition at line 316 of file dhclient.c.

317{
319 struct client_lease *lease;
321
322 time(&cur_time);
323
324 /* If we're not receptive to an offer right now, or if the offer
325 has an unrecognizable transaction id, then just drop it. */
326 if (packet->interface->client->xid != packet->raw->xid ||
327 (packet->interface->hw_address.hlen != packet->raw->hlen) ||
328 (memcmp(packet->interface->hw_address.haddr,
329 packet->raw->chaddr, packet->raw->hlen)))
330 return;
331
332 if (ip->client->state != S_REBOOTING &&
333 ip->client->state != S_REQUESTING &&
334 ip->client->state != S_RENEWING &&
335 ip->client->state != S_REBINDING)
336 return;
337
338 note("DHCPACK from %s", piaddr(packet->client_addr));
339
340 lease = packet_to_lease(packet);
341 if (!lease) {
342 note("packet_to_lease failed.");
343 return;
344 }
345
346 ip->client->new = lease;
347
348 /* Stop resending DHCPREQUEST. */
350
351 /* Figure out the lease time. */
352 if (ip->client->new->options[DHO_DHCP_LEASE_TIME].data)
353 ip->client->new->expiry = getULong(
354 ip->client->new->options[DHO_DHCP_LEASE_TIME].data);
355 else
356 ip->client->new->expiry = DHCP_DEFAULT_LEASE_TIME;
357 /* A number that looks negative here is really just very large,
358 because the lease expiry offset is unsigned. */
359 if (ip->client->new->expiry < 0)
360 ip->client->new->expiry = TIME_MAX;
361 /* XXX should be fixed by resetting the client state */
362 if (ip->client->new->expiry < 60)
363 ip->client->new->expiry = 60;
364
365 /* Take the server-provided renewal time if there is one;
366 otherwise figure it out according to the spec. */
367 if (ip->client->new->options[DHO_DHCP_RENEWAL_TIME].len)
368 ip->client->new->renewal = getULong(
369 ip->client->new->options[DHO_DHCP_RENEWAL_TIME].data);
370 else
371 ip->client->new->renewal = ip->client->new->expiry / 2;
372
373 /* Same deal with the rebind time. */
374 if (ip->client->new->options[DHO_DHCP_REBINDING_TIME].len)
375 ip->client->new->rebind = getULong(
376 ip->client->new->options[DHO_DHCP_REBINDING_TIME].data);
377 else
378 ip->client->new->rebind = ip->client->new->renewal +
379 ip->client->new->renewal / 2 + ip->client->new->renewal / 4;
380
381#ifdef __REACTOS__
382 ip->client->new->obtained = cur_time;
383#endif
384 ip->client->new->expiry += cur_time;
385 /* Lease lengths can never be negative. */
386 if (ip->client->new->expiry < cur_time)
387 ip->client->new->expiry = TIME_MAX;
388 ip->client->new->renewal += cur_time;
389 if (ip->client->new->renewal < cur_time)
390 ip->client->new->renewal = TIME_MAX;
391 ip->client->new->rebind += cur_time;
392 if (ip->client->new->rebind < cur_time)
393 ip->client->new->rebind = TIME_MAX;
394
395 bind_lease(ip);
396}
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
void cancel_timeout(void(*where)(void *), void *what)
Definition: dispatch.c:316
u_int32_t getULong(unsigned char *data)
Definition: util.c:96
#define TIME_MAX
Definition: dhclient.c:90
struct client_lease * packet_to_lease(struct packet *packet)
Definition: dhclient.c:829
void bind_lease(struct interface_info *ip)
Definition: dhclient.c:580
@ S_REBOOTING
Definition: dhcpd.h:171
@ S_RENEWING
Definition: dhcpd.h:176
@ S_REBINDING
Definition: dhcpd.h:177
@ S_REQUESTING
Definition: dhcpd.h:174
#define DHCP_DEFAULT_LEASE_TIME
Definition: rosdhcp.h:30

Referenced by dhcp().

◆ dhcpnak()

void dhcpnak ( struct packet packet)

Definition at line 915 of file dhclient.c.

916{
918
919 /* If we're not receptive to an offer right now, or if the offer
920 has an unrecognizable transaction id, then just drop it. */
921 if (packet->interface->client->xid != packet->raw->xid ||
922 (packet->interface->hw_address.hlen != packet->raw->hlen) ||
923 (memcmp(packet->interface->hw_address.haddr,
924 packet->raw->chaddr, packet->raw->hlen)))
925 return;
926
927 if (ip->client->state != S_REBOOTING &&
928 ip->client->state != S_REQUESTING &&
929 ip->client->state != S_RENEWING &&
930 ip->client->state != S_REBINDING)
931 return;
932
933 note("DHCPNAK from %s", piaddr(packet->client_addr));
934
935 if (!ip->client->active) {
936 note("DHCPNAK with no active lease.\n");
937 return;
938 }
939
940 free_client_lease(ip->client->active);
941 ip->client->active = NULL;
942
943 /* Stop sending DHCPREQUEST packets... */
945
946 ip->client->state = S_INIT;
947 state_init(ip);
948}
void state_init(void *ipp)
Definition: dhclient.c:210
@ S_INIT
Definition: dhcpd.h:172

Referenced by dhcp().

◆ dhcpoffer()

void dhcpoffer ( struct packet packet)

Definition at line 710 of file dhclient.c.

711{
713 struct client_lease *lease, *lp;
714 int i;
715 int arp_timeout_needed = 0, stop_selecting;
717 "DHCPOFFER" : "BOOTREPLY";
719
720 time(&cur_time);
721
722 /* If we're not receptive to an offer right now, or if the offer
723 has an unrecognizable transaction id, then just drop it. */
724 if (ip->client->state != S_SELECTING ||
725 packet->interface->client->xid != packet->raw->xid ||
726 (packet->interface->hw_address.hlen != packet->raw->hlen) ||
727 (memcmp(packet->interface->hw_address.haddr,
728 packet->raw->chaddr, packet->raw->hlen)))
729 return;
730
731 note("%s from %s", name, piaddr(packet->client_addr));
732
733
734 /* If this lease doesn't supply the minimum required parameters,
735 blow it off. */
736 for (i = 0; ip->client->config->required_options[i]; i++) {
737 if (!packet->options[ip->client->config->
738 required_options[i]].len) {
739 note("%s isn't satisfactory.", name);
740 return;
741 }
742 }
743
744 /* If we've already seen this lease, don't record it again. */
745 for (lease = ip->client->offered_leases;
746 lease; lease = lease->next) {
747 if (lease->address.len == sizeof(packet->raw->yiaddr) &&
748 !memcmp(lease->address.iabuf,
749 &packet->raw->yiaddr, lease->address.len)) {
750 debug("%s already seen.", name);
751 return;
752 }
753 }
754
755 lease = packet_to_lease(packet);
756 if (!lease) {
757 note("packet_to_lease failed.");
758 return;
759 }
760
761 /* If this lease was acquired through a BOOTREPLY, record that
762 fact. */
764 lease->is_bootp = 1;
765
766 /* Record the medium under which this lease was offered. */
767 lease->medium = ip->client->medium;
768
769 /* Send out an ARP Request for the offered IP address. */
770 if( !check_arp( ip, lease ) ) {
771 note("Arp check failed\n");
772 return;
773 }
774
775 /* Figure out when we're supposed to stop selecting. */
776 stop_selecting =
777 ip->client->first_sending + ip->client->config->select_interval;
778
779 /* If this is the lease we asked for, put it at the head of the
780 list, and don't mess with the arp request timeout. */
781 if (lease->address.len == ip->client->requested_address.len &&
782 !memcmp(lease->address.iabuf,
783 ip->client->requested_address.iabuf,
784 ip->client->requested_address.len)) {
785 lease->next = ip->client->offered_leases;
786 ip->client->offered_leases = lease;
787 } else {
788 /* If we already have an offer, and arping for this
789 offer would take us past the selection timeout,
790 then don't extend the timeout - just hope for the
791 best. */
792 if (ip->client->offered_leases &&
793 (cur_time + arp_timeout_needed) > stop_selecting)
794 arp_timeout_needed = 0;
795
796 /* Put the lease at the end of the list. */
797 lease->next = NULL;
798 if (!ip->client->offered_leases)
799 ip->client->offered_leases = lease;
800 else {
801 for (lp = ip->client->offered_leases; lp->next;
802 lp = lp->next)
803 ; /* nothing */
804 lp->next = lease;
805 }
806 }
807
808 /* If we're supposed to stop selecting before we've had time
809 to wait for the ARPREPLY, add some delay to wait for
810 the ARPREPLY. */
811 if (stop_selecting - cur_time < arp_timeout_needed)
812 stop_selecting = cur_time + arp_timeout_needed;
813
814 /* If the selecting interval has expired, go immediately to
815 state_selecting(). Otherwise, time out into
816 state_selecting at the select interval. */
817 if (stop_selecting <= 0)
819 else {
820 add_timeout(stop_selecting, state_selecting, ip);
822 }
823}
void send_discover(void *ipp)
Definition: dhclient.c:955
void state_selecting(void *ipp)
Definition: dhclient.c:235
int check_arp(struct interface_info *ip, struct client_lease *lp)
Definition: dhclient.c:137
@ S_SELECTING
Definition: dhcpd.h:173
#define debug(msg)
Definition: key_call.c:71
struct string_list * medium
Definition: dhcpd.h:163
struct iaddr address
Definition: dhcpd.h:156
unsigned int is_bootp
Definition: dhcpd.h:165
struct client_lease * next
Definition: dhcpd.h:154
Definition: name.c:39
struct option_data options[256]
Definition: dhcpd.h:144

Referenced by bootp(), and dhcp().

◆ fork_privchld()

int fork_privchld ( int  ,
int   
)

◆ free_client_lease()

void free_client_lease ( struct client_lease lease)

Definition at line 1515 of file dhclient.c.

1516{
1517 int i;
1518
1519 if (lease->server_name)
1520 free(lease->server_name);
1521 if (lease->filename)
1522 free(lease->filename);
1523 for (i = 0; i < 256; i++) {
1524 if (lease->options[i].len)
1525 free(lease->options[i].data);
1526 }
1527 free(lease);
1528}
#define free
Definition: debug_ros.c:5
struct option_data options[256]
Definition: dhcpd.h:166
char * filename
Definition: dhcpd.h:162
char * server_name
Definition: dhcpd.h:157

Referenced by bind_lease(), dhcpnak(), packet_to_lease(), and state_selecting().

◆ init_client()

int init_client ( void  )

Definition at line 111 of file dhclient.c.

112{
113 ApiInit();
114 AdapterInit();
115
116 tzset();
117
119 sockaddr_broadcast.sin_family = AF_INET;
121 sockaddr_broadcast.sin_addr.s_addr = INADDR_BROADCAST;
122 inaddr_any.s_addr = INADDR_ANY;
124
125 return 1; // TRUE
126}
void AdapterInit()
Definition: adapter.c:192
VOID ApiInit()
Definition: api.c:18
void(* bootp_packet_handler)(struct interface_info *, struct dhcp_packet *, int, unsigned int, struct iaddr, struct hardware *)
Definition: dispatch.c:59
void do_packet(struct interface_info *interface, struct dhcp_packet *packet, int len, unsigned int from_port, struct iaddr from, struct hardware *hfrom)
Definition: options.c:635
struct in_addr inaddr_any
Definition: dhclient.c:81
struct sockaddr_in sockaddr_broadcast
Definition: dhclient.c:82
#define REMOTE_PORT
Definition: dhcpd.h:113
#define AF_INET
Definition: tcpip.h:117
#define INADDR_BROADCAST
Definition: inet.h:55
#define INADDR_ANY
Definition: inet.h:53
#define htons(x)
Definition: module.h:215
_CRTIMP void __cdecl tzset(void)
#define memset(x, y, z)
Definition: compat.h:39

Referenced by ServiceMain().

◆ ipv4addrs()

int ipv4addrs ( char buf)

Definition at line 1937 of file dhclient.c.

1938{
1939 char *tmp;
1940 struct in_addr jnk;
1941 int i = 0;
1942
1943 note("Input: %s", buf);
1944
1945 do {
1946 tmp = strtok(buf, " ");
1947 note("got %s", tmp);
1948 if( tmp && inet_aton(tmp, &jnk) ) i++;
1949 buf = NULL;
1950 } while( tmp );
1951
1952 return (i);
1953}
char * strtok(char *String, const char *Delimiters)
Definition: utclib.c:338
#define inet_aton(cp, addr)
Definition: inet.h:99
Definition: tcpip.h:126

Referenced by check_option().

◆ make_decline()

void make_decline ( struct interface_info ip,
struct client_lease lease 
)

Definition at line 1441 of file dhclient.c.

1442{
1443 struct tree_cache *options[256], message_type_tree;
1444 struct tree_cache requested_address_tree;
1445 struct tree_cache server_id_tree, client_id_tree;
1446 unsigned char decline = DHCPDECLINE;
1447 int i;
1448
1449 memset(options, 0, sizeof(options));
1450 memset(&ip->client->packet, 0, sizeof(ip->client->packet));
1451
1452 /* Set DHCP_MESSAGE_TYPE to DHCPDECLINE */
1454 options[i] = &message_type_tree;
1455 options[i]->value = &decline;
1456 options[i]->len = sizeof(decline);
1457 options[i]->buf_size = sizeof(decline);
1458 options[i]->timeout = 0xFFFFFFFF;
1459
1460 /* Send back the server identifier... */
1462 options[i] = &server_id_tree;
1463 options[i]->value = lease->options[i].data;
1464 options[i]->len = lease->options[i].len;
1465 options[i]->buf_size = lease->options[i].len;
1466 options[i]->timeout = 0xFFFFFFFF;
1467
1468 /* Send back the address we're declining. */
1470 options[i] = &requested_address_tree;
1471 options[i]->value = lease->address.iabuf;
1472 options[i]->len = lease->address.len;
1473 options[i]->buf_size = lease->address.len;
1474 options[i]->timeout = 0xFFFFFFFF;
1475
1476 /* Send the uid if the user supplied one. */
1478 if (ip->client->config->send_options[i].len) {
1479 options[i] = &client_id_tree;
1480 options[i]->value = ip->client->config->send_options[i].data;
1481 options[i]->len = ip->client->config->send_options[i].len;
1482 options[i]->buf_size = ip->client->config->send_options[i].len;
1483 options[i]->timeout = 0xFFFFFFFF;
1484 }
1485
1486
1487 /* Set up the option buffer... */
1488 ip->client->packet_length = cons_options(NULL, &ip->client->packet, 0,
1489 options);
1490 if (ip->client->packet_length < BOOTP_MIN_LEN)
1491 ip->client->packet_length = BOOTP_MIN_LEN;
1492
1493 ip->client->packet.op = BOOTREQUEST;
1494 ip->client->packet.htype = ip->hw_address.htype;
1495 ip->client->packet.hlen = ip->hw_address.hlen;
1496 ip->client->packet.hops = 0;
1497 ip->client->packet.xid = ip->client->xid;
1498 ip->client->packet.secs = 0; /* Filled in by send_request. */
1499 ip->client->packet.flags = 0;
1500
1501 /* ciaddr must always be zero. */
1502 memset(&ip->client->packet.ciaddr, 0,
1503 sizeof(ip->client->packet.ciaddr));
1504 memset(&ip->client->packet.yiaddr, 0,
1505 sizeof(ip->client->packet.yiaddr));
1506 memset(&ip->client->packet.siaddr, 0,
1507 sizeof(ip->client->packet.siaddr));
1508 memset(&ip->client->packet.giaddr, 0,
1509 sizeof(ip->client->packet.giaddr));
1510 memcpy(ip->client->packet.chaddr,
1511 ip->hw_address.haddr, ip->hw_address.hlen);
1512}
int cons_options(struct packet *inpacket, struct dhcp_packet *outpacket, int mms, struct tree_cache **options)
Definition: options.c:199
#define BOOTP_MIN_LEN
Definition: dhcp.h:54
#define BOOTREQUEST
Definition: dhcp.h:78
#define DHCPDECLINE
Definition: dhcp.h:165
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878

◆ make_discover()

void make_discover ( struct interface_info ip,
struct client_lease lease 
)

Definition at line 1256 of file dhclient.c.

1257{
1258 unsigned char discover = DHCPDISCOVER;
1259 struct tree_cache *options[256];
1260 struct tree_cache option_elements[256];
1261 int i;
1263
1264 memset(option_elements, 0, sizeof(option_elements));
1265 memset(options, 0, sizeof(options));
1266 memset(&ip->client->packet, 0, sizeof(ip->client->packet));
1267
1268 /* Set DHCP_MESSAGE_TYPE to DHCPDISCOVER */
1270 options[i] = &option_elements[i];
1271 options[i]->value = &discover;
1272 options[i]->len = sizeof(discover);
1273 options[i]->buf_size = sizeof(discover);
1274 options[i]->timeout = 0xFFFFFFFF;
1275
1276 /* Request the options we want */
1278 options[i] = &option_elements[i];
1279 options[i]->value = ip->client->config->requested_options;
1280 options[i]->len = ip->client->config->requested_option_count;
1281 options[i]->buf_size =
1282 ip->client->config->requested_option_count;
1283 options[i]->timeout = 0xFFFFFFFF;
1284
1285 /* If we had an address, try to get it again. */
1286 if (lease) {
1287 ip->client->requested_address = lease->address;
1289 options[i] = &option_elements[i];
1290 options[i]->value = lease->address.iabuf;
1291 options[i]->len = lease->address.len;
1292 options[i]->buf_size = lease->address.len;
1293 options[i]->timeout = 0xFFFFFFFF;
1294 } else
1295 ip->client->requested_address.len = 0;
1296
1297 /* Send any options requested in the config file. */
1298 for (i = 0; i < 256; i++)
1299 if (!options[i] &&
1300 ip->client->config->send_options[i].data) {
1301 options[i] = &option_elements[i];
1302 options[i]->value =
1303 ip->client->config->send_options[i].data;
1304 options[i]->len =
1305 ip->client->config->send_options[i].len;
1306 options[i]->buf_size =
1307 ip->client->config->send_options[i].len;
1308 options[i]->timeout = 0xFFFFFFFF;
1309 }
1310
1311 /* Set up the option buffer... */
1312 ip->client->packet_length = cons_options(NULL, &ip->client->packet, 0,
1313 options);
1314 if (ip->client->packet_length < BOOTP_MIN_LEN)
1315 ip->client->packet_length = BOOTP_MIN_LEN;
1316
1317 ip->client->packet.op = BOOTREQUEST;
1318 ip->client->packet.htype = ip->hw_address.htype;
1319 ip->client->packet.hlen = ip->hw_address.hlen;
1320 ip->client->packet.hops = 0;
1321 ip->client->packet.xid = RtlRandom(&foo);
1322 ip->client->packet.secs = 0; /* filled in by send_discover. */
1323 ip->client->packet.flags = 0;
1324
1325 memset(&(ip->client->packet.ciaddr),
1326 0, sizeof(ip->client->packet.ciaddr));
1327 memset(&(ip->client->packet.yiaddr),
1328 0, sizeof(ip->client->packet.yiaddr));
1329 memset(&(ip->client->packet.siaddr),
1330 0, sizeof(ip->client->packet.siaddr));
1331 memset(&(ip->client->packet.giaddr),
1332 0, sizeof(ip->client->packet.giaddr));
1333 memcpy(ip->client->packet.chaddr,
1334 ip->hw_address.haddr, ip->hw_address.hlen);
1335}
#define DHCPDISCOVER
Definition: dhcp.h:162
DWORD WINAPI GetTickCount(VOID)
Definition: time.c:455
NTSYSAPI ULONG NTAPI RtlRandom(_Inout_ PULONG Seed)
uint32_t ULONG
Definition: typedefs.h:59

Referenced by state_init().

◆ make_request()

void make_request ( struct interface_info ip,
struct client_lease lease 
)

Definition at line 1339 of file dhclient.c.

1340{
1341 unsigned char request = DHCPREQUEST;
1342 struct tree_cache *options[256];
1343 struct tree_cache option_elements[256];
1344 int i;
1345
1346 memset(options, 0, sizeof(options));
1347 memset(&ip->client->packet, 0, sizeof(ip->client->packet));
1348
1349 /* Set DHCP_MESSAGE_TYPE to DHCPREQUEST */
1351 options[i] = &option_elements[i];
1352 options[i]->value = &request;
1353 options[i]->len = sizeof(request);
1354 options[i]->buf_size = sizeof(request);
1355 options[i]->timeout = 0xFFFFFFFF;
1356
1357 /* Request the options we want */
1359 options[i] = &option_elements[i];
1360 options[i]->value = ip->client->config->requested_options;
1361 options[i]->len = ip->client->config->requested_option_count;
1362 options[i]->buf_size =
1363 ip->client->config->requested_option_count;
1364 options[i]->timeout = 0xFFFFFFFF;
1365
1366 /* If we are requesting an address that hasn't yet been assigned
1367 to us, use the DHCP Requested Address option. */
1368 if (ip->client->state == S_REQUESTING) {
1369 /* Send back the server identifier... */
1371 options[i] = &option_elements[i];
1372 options[i]->value = lease->options[i].data;
1373 options[i]->len = lease->options[i].len;
1374 options[i]->buf_size = lease->options[i].len;
1375 options[i]->timeout = 0xFFFFFFFF;
1376 }
1377 if (ip->client->state == S_REQUESTING ||
1378 ip->client->state == S_REBOOTING) {
1379 ip->client->requested_address = lease->address;
1381 options[i] = &option_elements[i];
1382 options[i]->value = lease->address.iabuf;
1383 options[i]->len = lease->address.len;
1384 options[i]->buf_size = lease->address.len;
1385 options[i]->timeout = 0xFFFFFFFF;
1386 } else
1387 ip->client->requested_address.len = 0;
1388
1389 /* Send any options requested in the config file. */
1390 for (i = 0; i < 256; i++)
1391 if (!options[i] &&
1392 ip->client->config->send_options[i].data) {
1393 options[i] = &option_elements[i];
1394 options[i]->value =
1395 ip->client->config->send_options[i].data;
1396 options[i]->len =
1397 ip->client->config->send_options[i].len;
1398 options[i]->buf_size =
1399 ip->client->config->send_options[i].len;
1400 options[i]->timeout = 0xFFFFFFFF;
1401 }
1402
1403 /* Set up the option buffer... */
1404 ip->client->packet_length = cons_options(NULL, &ip->client->packet, 0,
1405 options);
1406 if (ip->client->packet_length < BOOTP_MIN_LEN)
1407 ip->client->packet_length = BOOTP_MIN_LEN;
1408
1409 ip->client->packet.op = BOOTREQUEST;
1410 ip->client->packet.htype = ip->hw_address.htype;
1411 ip->client->packet.hlen = ip->hw_address.hlen;
1412 ip->client->packet.hops = 0;
1413 ip->client->packet.xid = ip->client->xid;
1414 ip->client->packet.secs = 0; /* Filled in by send_request. */
1415
1416 /* If we own the address we're requesting, put it in ciaddr;
1417 otherwise set ciaddr to zero. */
1418 if (ip->client->state == S_BOUND ||
1419 ip->client->state == S_RENEWING ||
1420 ip->client->state == S_REBINDING) {
1421 memcpy(&ip->client->packet.ciaddr,
1422 lease->address.iabuf, lease->address.len);
1423 ip->client->packet.flags = 0;
1424 } else {
1425 memset(&ip->client->packet.ciaddr, 0,
1426 sizeof(ip->client->packet.ciaddr));
1427 ip->client->packet.flags = 0;
1428 }
1429
1430 memset(&ip->client->packet.yiaddr, 0,
1431 sizeof(ip->client->packet.yiaddr));
1432 memset(&ip->client->packet.siaddr, 0,
1433 sizeof(ip->client->packet.siaddr));
1434 memset(&ip->client->packet.giaddr, 0,
1435 sizeof(ip->client->packet.giaddr));
1436 memcpy(ip->client->packet.chaddr,
1437 ip->hw_address.haddr, ip->hw_address.hlen);
1438}
#define DHCPREQUEST
Definition: dhcp.h:164
Definition: tftpd.h:86

Referenced by state_bound(), state_reboot(), and state_selecting().

◆ option_as_string()

char * option_as_string ( unsigned int  code,
unsigned char data,
int  len 
)

Definition at line 1957 of file dhclient.c.

1958{
1959 static char optbuf[32768]; /* XXX */
1960 char *op = optbuf;
1961 int opleft = sizeof(optbuf);
1962 unsigned char *dp = data;
1963
1964 if (code > 255)
1965 error("option_as_string: bad code %d", code);
1966
1967 for (; dp < data + len; dp++) {
1968 if (!isascii(*dp) || !isprint(*dp)) {
1969 if (dp + 1 != data + len || *dp != 0) {
1970 _snprintf(op, opleft, "\\%03o", *dp);
1971 op += 4;
1972 opleft -= 4;
1973 }
1974 } else if (*dp == '"' || *dp == '\'' || *dp == '$' ||
1975 *dp == '`' || *dp == '\\') {
1976 *op++ = '\\';
1977 *op++ = *dp;
1978 opleft -= 2;
1979 } else {
1980 *op++ = *dp;
1981 opleft--;
1982 }
1983 }
1984 if (opleft < 1)
1985 goto toobig;
1986 *op = 0;
1987 return optbuf;
1988toobig:
1989 warning("dhcp option too large");
1990 return "<error>";
1991}
#define isprint(c)
Definition: acclib.h:73
UINT op
Definition: effect.c:236
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl.h:1950
GLenum GLsizei len
Definition: glext.h:6722
#define isascii
Definition: ctype.h:742
#define error(str)
Definition: mkdosfs.c:1605
Definition: inflate.c:139
#define _snprintf
Definition: xmlstorage.h:200

Referenced by check_option().

◆ packet_to_lease()

struct client_lease * packet_to_lease ( struct packet packet)

Definition at line 829 of file dhclient.c.

830{
831 struct client_lease *lease;
832 int i;
833
834 lease = malloc(sizeof(struct client_lease));
835
836 if (!lease) {
837 warning("dhcpoffer: no memory to record lease.");
838 return (NULL);
839 }
840
841 memset(lease, 0, sizeof(*lease));
842
843 /* Copy the lease options. */
844 for (i = 0; i < 256; i++) {
845 if (packet->options[i].len) {
846 lease->options[i].data =
847 malloc(packet->options[i].len + 1);
848 if (!lease->options[i].data) {
849 warning("dhcpoffer: no memory for option %d", i);
850 free_client_lease(lease);
851 return (NULL);
852 } else {
853 memcpy(lease->options[i].data,
854 packet->options[i].data,
855 packet->options[i].len);
856 lease->options[i].len =
857 packet->options[i].len;
858 lease->options[i].data[lease->options[i].len] =
859 0;
860 }
861 if (!check_option(lease,i)) {
862 /* ignore a bogus lease offer */
863 warning("Invalid lease option - ignoring offer");
864 free_client_lease(lease);
865 return (NULL);
866 }
867 }
868 }
869
870 lease->address.len = sizeof(packet->raw->yiaddr);
871 memcpy(lease->address.iabuf, &packet->raw->yiaddr, lease->address.len);
872#ifdef __REACTOS__
873 lease->serveraddress.len = sizeof(packet->raw->siaddr);
874 memcpy(lease->serveraddress.iabuf, &packet->raw->siaddr, lease->address.len);
875#endif
876
877 /* If the server name was filled out, copy it. */
879 !(packet->options[DHO_DHCP_OPTION_OVERLOAD].data[0] & 2)) &&
880 packet->raw->sname[0]) {
881 lease->server_name = malloc(DHCP_SNAME_LEN + 1);
882 if (!lease->server_name) {
883 warning("dhcpoffer: no memory for server name.");
884 free_client_lease(lease);
885 return (NULL);
886 }
887 memcpy(lease->server_name, packet->raw->sname, DHCP_SNAME_LEN);
888 lease->server_name[DHCP_SNAME_LEN]='\0';
889 if (!res_hnok(lease->server_name) ) {
890 warning("Bogus server name %s", lease->server_name );
891 free_client_lease(lease);
892 return (NULL);
893 }
894
895 }
896
897 /* Ditto for the filename. */
899 !(packet->options[DHO_DHCP_OPTION_OVERLOAD].data[0] & 1)) &&
900 packet->raw->file[0]) {
901 /* Don't count on the NUL terminator. */
902 lease->filename = malloc(DHCP_FILE_LEN + 1);
903 if (!lease->filename) {
904 warning("dhcpoffer: no memory for filename.");
905 free_client_lease(lease);
906 return (NULL);
907 }
908 memcpy(lease->filename, packet->raw->file, DHCP_FILE_LEN);
909 lease->filename[DHCP_FILE_LEN]='\0';
910 }
911 return lease;
912}
#define DHCP_SNAME_LEN
Definition: dhcp.h:46
#define DHCP_FILE_LEN
Definition: dhcp.h:47
#define malloc
Definition: debug_ros.c:4
int check_option(struct client_lease *l, int option)
Definition: dhclient.c:1813

Referenced by dhcpack(), and dhcpoffer().

◆ priv_script_init()

void priv_script_init ( struct interface_info ip,
char reason,
char medium 
)

Definition at line 1621 of file dhclient.c.

1622{
1623 if (ip) {
1624 // XXX Do we need to do anything?
1625 }
1626}

◆ priv_script_write_params()

void priv_script_write_params ( struct interface_info ip,
char prefix,
struct client_lease lease 
)

Definition at line 1629 of file dhclient.c.

1630{
1631 u_int8_t dbuf[1500];
1632 int i, len = 0;
1633
1634#if 0
1635 script_set_env(ip->client, prefix, "ip_address",
1636 piaddr(lease->address));
1637#endif
1638
1639 if (lease->options[DHO_SUBNET_MASK].len &&
1640 (lease->options[DHO_SUBNET_MASK].len <
1641 sizeof(lease->address.iabuf))) {
1642 struct iaddr netmask, subnet, broadcast;
1643
1644 memcpy(netmask.iabuf, lease->options[DHO_SUBNET_MASK].data,
1645 lease->options[DHO_SUBNET_MASK].len);
1646 netmask.len = lease->options[DHO_SUBNET_MASK].len;
1647
1648 subnet = subnet_number(lease->address, netmask);
1649 if (subnet.len) {
1650#if 0
1651 script_set_env(ip->client, prefix, "network_number",
1652 piaddr(subnet));
1653#endif
1654 if (!lease->options[DHO_BROADCAST_ADDRESS].len) {
1655 broadcast = broadcast_addr(subnet, netmask);
1656 if (broadcast.len)
1657#if 0
1658 script_set_env(ip->client, prefix,
1659 "broadcast_address",
1660 piaddr(broadcast));
1661#else
1662 ;
1663#endif
1664 }
1665 }
1666 }
1667
1668#if 0
1669 if (lease->filename)
1670 script_set_env(ip->client, prefix, "filename", lease->filename);
1671 if (lease->server_name)
1672 script_set_env(ip->client, prefix, "server_name",
1673 lease->server_name);
1674#endif
1675
1676 for (i = 0; i < 256; i++) {
1677 u_int8_t *dp = NULL;
1678
1679 if (ip->client->config->defaults[i].len) {
1680 if (lease->options[i].len) {
1681 switch (
1682 ip->client->config->default_actions[i]) {
1683 case ACTION_DEFAULT:
1684 dp = lease->options[i].data;
1685 len = lease->options[i].len;
1686 break;
1687 case ACTION_SUPERSEDE:
1688supersede:
1689 dp = ip->client->
1690 config->defaults[i].data;
1691 len = ip->client->
1692 config->defaults[i].len;
1693 break;
1694 case ACTION_PREPEND:
1695 len = ip->client->
1696 config->defaults[i].len +
1697 lease->options[i].len;
1698 if (len >= sizeof(dbuf)) {
1699 warning("no space to %s %s",
1700 "prepend option",
1702 goto supersede;
1703 }
1704 dp = dbuf;
1705 memcpy(dp,
1706 ip->client->
1707 config->defaults[i].data,
1708 ip->client->
1709 config->defaults[i].len);
1710 memcpy(dp + ip->client->
1711 config->defaults[i].len,
1712 lease->options[i].data,
1713 lease->options[i].len);
1714 dp[len] = '\0';
1715 break;
1716 case ACTION_APPEND:
1717 len = ip->client->
1718 config->defaults[i].len +
1719 lease->options[i].len + 1;
1720 if (len > sizeof(dbuf)) {
1721 warning("no space to %s %s",
1722 "append option",
1724 goto supersede;
1725 }
1726 dp = dbuf;
1727 memcpy(dp,
1728 lease->options[i].data,
1729 lease->options[i].len);
1730 memcpy(dp + lease->options[i].len,
1731 ip->client->
1732 config->defaults[i].data,
1733 ip->client->
1734 config->defaults[i].len);
1735 dp[len-1] = '\0';
1736 }
1737 } else {
1738 dp = ip->client->
1739 config->defaults[i].data;
1740 len = ip->client->
1741 config->defaults[i].len;
1742 }
1743 } else if (lease->options[i].len) {
1744 len = lease->options[i].len;
1745 dp = lease->options[i].data;
1746 } else {
1747 len = 0;
1748 }
1749#if 0
1750 if (len) {
1751 char name[256];
1752
1753 if (dhcp_option_ev_name(name, sizeof(name),
1754 &dhcp_options[i]))
1755 script_set_env(ip->client, prefix, name,
1756 pretty_print_option(i, dp, len, 0, 0));
1757 }
1758#endif
1759 }
1760#if 0
1761 snprintf(tbuf, sizeof(tbuf), "%d", (int)lease->expiry);
1762 script_set_env(ip->client, prefix, "expiry", tbuf);
1763#endif
1764}
struct iaddr broadcast_addr(struct iaddr addr, struct iaddr mask)
Definition: util.c:167
struct iaddr subnet_number(struct iaddr addr, struct iaddr mask)
Definition: util.c:172
int dhcp_option_ev_name(char *buf, size_t buflen, struct dhcp_option *option)
Definition: dhclient.c:1767
void script_set_env(struct client_state *, const char *, const char *, const char *)
unsigned char u_int8_t
Definition: rosdhcp.h:33
time_t expiry
Definition: dhcpd.h:155
Definition: dhcpd.h:125
struct dhcp_option dhcp_options[256]
Definition: tables.c:68
#define snprintf
Definition: wintirpc.h:48

◆ res_hnok()

int res_hnok ( const char dn)

Definition at line 1908 of file dhclient.c.

1909{
1910 int pch = PERIOD, ch = *dn++;
1911
1912 while (ch != '\0') {
1913 int nch = *dn++;
1914
1915 if (periodchar(ch)) {
1916 ;
1917 } else if (periodchar(pch)) {
1918 if (!borderchar(ch))
1919 return (0);
1920 } else if (periodchar(nch) || nch == '\0') {
1921 if (!borderchar(ch))
1922 return (0);
1923 } else {
1924 if (!middlechar(ch))
1925 return (0);
1926 }
1927 pch = ch, ch = nch;
1928 }
1929 return (1);
1930}
#define middlechar(c)
Definition: dhclient.c:68
#define periodchar(c)
Definition: dhclient.c:61
#define borderchar(c)
Definition: dhclient.c:67
#define PERIOD
Definition: dhclient.c:58
#define pch(ap)
Definition: match.c:418
int nch
Definition: scanf.h:135

Referenced by check_option(), and packet_to_lease().

◆ rewrite_client_leases()

void rewrite_client_leases ( struct interface_info ifi)

Definition at line 1533 of file dhclient.c.

1534{
1535 struct client_lease *lp;
1536
1537 if (!leaseFile) {
1539 if (!leaseFile)
1540 error("can't create %s", path_dhclient_db);
1541 } else {
1544 }
1545
1546 for (lp = ifi->client->leases; lp; lp = lp->next)
1547 write_client_lease(ifi, lp, 1);
1548 if (ifi->client->active)
1549 write_client_lease(ifi, ifi->client->active, 1);
1550
1552}
char * path_dhclient_db
Definition: dhclient.c:74
void write_client_lease(struct interface_info *ip, struct client_lease *lease, int rewrite)
Definition: dhclient.c:1555
FILE * leaseFile
Definition: dhclient.c:1530
_CRTIMP void __cdecl rewind(_Inout_ FILE *_File)
_Check_return_opt_ _CRTIMP int __cdecl fflush(_Inout_opt_ FILE *_File)
_Check_return_ _CRTIMP FILE *__cdecl fopen(_In_z_ const char *_Filename, _In_z_ const char *_Mode)
struct client_state * client
Definition: dhcpd.h:238

Referenced by write_client_lease().

◆ send_decline()

void send_decline ( void ipp)

Definition at line 1242 of file dhclient.c.

1243{
1244 struct interface_info *ip = ipp;
1245
1246 note("DHCPDECLINE on %s to %s port %d", ip->name,
1247 inet_ntoa(sockaddr_broadcast.sin_addr),
1248 ntohs(sockaddr_broadcast.sin_port));
1249
1250 /* Send out a packet. */
1251 (void) send_packet(ip, &ip->client->packet, ip->client->packet_length,
1253}
#define inet_ntoa(addr)
Definition: inet.h:100
#define ntohs(x)
Definition: module.h:210
ssize_t send_packet(struct interface_info *ip, struct dhcp_packet *p, size_t size, struct in_addr addr, struct sockaddr_in *broadcast, struct hardware *hardware)
Definition: socket.c:9

◆ send_discover()

void send_discover ( void ipp)

Definition at line 955 of file dhclient.c.

956{
957 struct interface_info *ip = ipp;
958 int interval, increase = 1;
960
961 DH_DbgPrint(MID_TRACE,("Doing discover on interface %p\n",ip));
962
963 time(&cur_time);
964
965 /* Figure out how long it's been since we started transmitting. */
966 interval = cur_time - ip->client->first_sending;
967
968 /* If we're past the panic timeout, call the script and tell it
969 we haven't found anything for this interface yet. */
970 if (interval > ip->client->config->timeout) {
972 ip->client->first_sending = cur_time;
973 }
974
975 /* If we're selecting media, try the whole list before doing
976 the exponential backoff, but if we've already received an
977 offer, stop looping, because we obviously have it right. */
978 if (!ip->client->offered_leases &&
979 ip->client->config->media) {
980 int fail = 0;
981
982 if (ip->client->medium) {
983 ip->client->medium = ip->client->medium->next;
984 increase = 0;
985 }
986 if (!ip->client->medium) {
987 if (fail)
988 error("No valid media types for %s!", ip->name);
989 ip->client->medium = ip->client->config->media;
990 increase = 1;
991 }
992
993 note("Trying medium \"%s\" %d", ip->client->medium->string,
994 increase);
995 /* XXX Support other media types eventually */
996 }
997
998 /*
999 * If we're supposed to increase the interval, do so. If it's
1000 * currently zero (i.e., we haven't sent any packets yet), set
1001 * it to one; otherwise, add to it a random number between zero
1002 * and two times itself. On average, this means that it will
1003 * double with every transmission.
1004 */
1005 if (increase) {
1006 if (!ip->client->interval)
1007 ip->client->interval =
1008 ip->client->config->initial_interval;
1009 else {
1010 ip->client->interval += (rand() >> 2) %
1011 (2 * ip->client->interval);
1012 }
1013
1014 /* Don't backoff past cutoff. */
1015 if (ip->client->interval >
1016 ip->client->config->backoff_cutoff)
1017 ip->client->interval =
1018 ((ip->client->config->backoff_cutoff / 2)
1019 + ((rand() >> 2) %
1020 ip->client->config->backoff_cutoff));
1021 } else if (!ip->client->interval)
1022 ip->client->interval =
1023 ip->client->config->initial_interval;
1024
1025 /* If the backoff would take us to the panic timeout, just use that
1026 as the interval. */
1027 if (cur_time + ip->client->interval >
1028 ip->client->first_sending + ip->client->config->timeout)
1029 ip->client->interval =
1030 (ip->client->first_sending +
1031 ip->client->config->timeout) - cur_time + 1;
1032
1033 /* Record the number of seconds since we started sending. */
1034 if (interval < 65536)
1035 ip->client->packet.secs = htons(interval);
1036 else
1037 ip->client->packet.secs = htons(65535);
1038 ip->client->secs = ip->client->packet.secs;
1039
1040 note("DHCPDISCOVER on %s to %s port %d interval %ld",
1041 ip->name, inet_ntoa(sockaddr_broadcast.sin_addr),
1042 ntohs(sockaddr_broadcast.sin_port), (long int)ip->client->interval);
1043
1044 /* Send out a packet. */
1045 (void)send_packet(ip, &ip->client->packet, ip->client->packet_length,
1047
1048 DH_DbgPrint(MID_TRACE,("discover timeout: now %x -> then %x\n",
1049 cur_time, cur_time + ip->client->interval));
1050
1051 add_timeout(cur_time + ip->client->interval, send_discover, ip);
1052}
#define MID_TRACE
Definition: debug.h:15
#define DH_DbgPrint(_t_, _x_)
Definition: debug.h:49
void state_panic(void *ipp)
Definition: dhclient.c:1061
static void increase(int &a_)
_Check_return_ int __cdecl rand(void)
Definition: rand.c:10

Referenced by dhcpoffer(), send_discover(), state_init(), and state_selecting().

◆ send_request()

void send_request ( void ipp)

Definition at line 1113 of file dhclient.c.

1114{
1115 struct interface_info *ip = ipp;
1116 struct sockaddr_in destination;
1117 struct in_addr from;
1118 int interval;
1120
1121 time(&cur_time);
1122
1123 /* Figure out how long it's been since we started transmitting. */
1124 interval = cur_time - ip->client->first_sending;
1125
1126 /* If we're in the INIT-REBOOT or REQUESTING state and we're
1127 past the reboot timeout, go to INIT and see if we can
1128 DISCOVER an address... */
1129 /* XXX In the INIT-REBOOT state, if we don't get an ACK, it
1130 means either that we're on a network with no DHCP server,
1131 or that our server is down. In the latter case, assuming
1132 that there is a backup DHCP server, DHCPDISCOVER will get
1133 us a new address, but we could also have successfully
1134 reused our old address. In the former case, we're hosed
1135 anyway. This is not a win-prone situation. */
1136 if ((ip->client->state == S_REBOOTING ||
1137 ip->client->state == S_REQUESTING) &&
1138 interval > ip->client->config->reboot_timeout) {
1139 ip->client->state = S_INIT;
1141 state_init(ip);
1142 return;
1143 }
1144
1145 /* If we're in the reboot state, make sure the media is set up
1146 correctly. */
1147 if (ip->client->state == S_REBOOTING &&
1148 !ip->client->medium &&
1149 ip->client->active->medium ) {
1150 /* If the medium we chose won't fly, go to INIT state. */
1151 /* XXX Nothing for now */
1152
1153 /* Record the medium. */
1154 ip->client->medium = ip->client->active->medium;
1155 }
1156
1157 /* If the lease has expired, relinquish the address and go back
1158 to the INIT state. */
1159 if (ip->client->state != S_REQUESTING &&
1160 cur_time > ip->client->active->expiry) {
1161 PDHCP_ADAPTER Adapter = AdapterFindInfo( ip );
1162 /* Run the client script with the new parameters. */
1163 /* No script actions necessary in the expiry case */
1164 /* Now do a preinit on the interface so that we can
1165 discover a new address. */
1166
1167 if( Adapter )
1168 {
1169 DeleteIPAddress( Adapter->NteContext );
1170 Adapter->NteContext = 0;
1171 }
1172
1173 ip->client->state = S_INIT;
1174 state_init(ip);
1175 return;
1176 }
1177
1178 /* Do the exponential backoff... */
1179 if (!ip->client->interval)
1180 ip->client->interval = ip->client->config->initial_interval;
1181 else
1182 ip->client->interval += ((rand() >> 2) %
1183 (2 * ip->client->interval));
1184
1185 /* Don't backoff past cutoff. */
1186 if (ip->client->interval >
1187 ip->client->config->backoff_cutoff)
1188 ip->client->interval =
1189 ((ip->client->config->backoff_cutoff / 2) +
1190 ((rand() >> 2) % ip->client->interval));
1191
1192 /* If the backoff would take us to the expiry time, just set the
1193 timeout to the expiry time. */
1194 if (ip->client->state != S_REQUESTING &&
1195 cur_time + ip->client->interval >
1196 ip->client->active->expiry)
1197 ip->client->interval =
1198 ip->client->active->expiry - cur_time + 1;
1199
1200 /* If the lease T2 time has elapsed, or if we're not yet bound,
1201 broadcast the DHCPREQUEST rather than unicasting. */
1202 memset(&destination, 0, sizeof(destination));
1203 if (ip->client->state == S_REQUESTING ||
1204 ip->client->state == S_REBOOTING ||
1205 cur_time > ip->client->active->rebind)
1206 destination.sin_addr.s_addr = INADDR_BROADCAST;
1207 else
1208 memcpy(&destination.sin_addr.s_addr,
1209 ip->client->destination.iabuf,
1210 sizeof(destination.sin_addr.s_addr));
1211 destination.sin_port = htons(REMOTE_PORT);
1212 destination.sin_family = AF_INET;
1213// destination.sin_len = sizeof(destination);
1214
1215 if (ip->client->state != S_REQUESTING)
1216 memcpy(&from, ip->client->active->address.iabuf,
1217 sizeof(from));
1218 else
1219 from.s_addr = INADDR_ANY;
1220
1221 /* Record the number of seconds since we started sending. */
1222 if (ip->client->state == S_REQUESTING)
1223 ip->client->packet.secs = ip->client->secs;
1224 else {
1225 if (interval < 65536)
1226 ip->client->packet.secs = htons(interval);
1227 else
1228 ip->client->packet.secs = htons(65535);
1229 }
1230
1231 note("DHCPREQUEST on %s to %s port %d", ip->name,
1232 inet_ntoa(destination.sin_addr), ntohs(destination.sin_port));
1233
1234 /* Send out a packet. */
1235 (void) send_packet(ip, &ip->client->packet, ip->client->packet_length,
1236 from, &destination, NULL);
1237
1238 add_timeout(cur_time + ip->client->interval, send_request, ip);
1239}
DWORD WINAPI DeleteIPAddress(ULONG NTEContext)
CardRegion * from
Definition: spigame.cpp:19
ULONG NteContext
Definition: rosdhcp.h:70

◆ set_domain()

void set_domain ( PDHCP_ADAPTER  Adapter,
struct client_lease new_lease 
)

Definition at line 443 of file dhclient.c.

445{
446 CHAR Buffer1[MAX_PATH] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
447 CHAR Buffer2[MAX_PATH] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters";
448 HKEY RegKey1, RegKey2;
449
450 strcat(Buffer1, Adapter->DhclientInfo.name);
451
452 if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, Buffer1, 0, KEY_WRITE, &RegKey1 ) != ERROR_SUCCESS)
453 {
454 return;
455 }
456
457 if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, Buffer2, 0, KEY_WRITE, &RegKey2 ) != ERROR_SUCCESS)
458 {
459 RegCloseKey(RegKey1);
460 return;
461 }
462
463 if (new_lease->options[DHO_DOMAIN_NAME].len)
464 {
465 DH_DbgPrint(MID_TRACE, ("Setting DhcpDomain: %s\n", new_lease->options[DHO_DOMAIN_NAME].data));
466
467 RegSetValueExA(RegKey1,
468 "DhcpDomain",
469 0,
470 REG_SZ,
471 (LPBYTE)new_lease->options[DHO_DOMAIN_NAME].data,
472 new_lease->options[DHO_DOMAIN_NAME].len);
473
474 RegSetValueExA(RegKey2,
475 "DhcpDomain",
476 0,
477 REG_SZ,
478 (LPBYTE)new_lease->options[DHO_DOMAIN_NAME].data,
479 new_lease->options[DHO_DOMAIN_NAME].len);
480 }
481 else
482 {
483 RegDeleteValueW(RegKey1, L"DhcpDomain");
484 RegDeleteValueW(RegKey2, L"DhcpDomain");
485 }
486
487 RegCloseKey(RegKey1);
488 RegCloseKey(RegKey2);
489
490}
char * strcat(char *DstString, const char *SrcString)
Definition: utclib.c:568
#define RegCloseKey(hKey)
Definition: registry.h:49
#define ERROR_SUCCESS
Definition: deptool.c:10
LONG WINAPI RegSetValueExA(HKEY hKey, LPCSTR lpValueName, DWORD Reserved, DWORD dwType, CONST BYTE *lpData, DWORD cbData)
Definition: reg.c:4799
LONG WINAPI RegOpenKeyExA(_In_ HKEY hKey, _In_ LPCSTR lpSubKey, _In_ DWORD ulOptions, _In_ REGSAM samDesired, _Out_ PHKEY phkResult)
Definition: reg.c:3298
LONG WINAPI RegDeleteValueW(HKEY hKey, LPCWSTR lpValueName)
Definition: reg.c:2330
#define MAX_PATH
Definition: compat.h:34
#define REG_SZ
Definition: layer.c:22
#define KEY_WRITE
Definition: nt_native.h:1031
#define L(x)
Definition: ntvdm.h:50
struct interface_info DhclientInfo
Definition: rosdhcp.h:71
unsigned char * LPBYTE
Definition: typedefs.h:53
#define HKEY_LOCAL_MACHINE
Definition: winreg.h:12
char CHAR
Definition: xmlstorage.h:175

Referenced by bind_lease().

◆ set_name_servers()

void set_name_servers ( PDHCP_ADAPTER  Adapter,
struct client_lease new_lease 
)

Definition at line 398 of file dhclient.c.

398 {
399 CHAR Buffer[200] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
400 HKEY RegKey;
401
402 strcat(Buffer, Adapter->DhclientInfo.name);
404 return;
405
406
407 if( new_lease->options[DHO_DOMAIN_NAME_SERVERS].len ) {
408
409 struct iaddr nameserver;
410 char *nsbuf;
411 int i, addrs =
412 new_lease->options[DHO_DOMAIN_NAME_SERVERS].len / sizeof(ULONG);
413
414 nsbuf = malloc( addrs * sizeof(IP_ADDRESS_STRING) );
415
416 if( nsbuf) {
417 nsbuf[0] = 0;
418 for( i = 0; i < addrs; i++ ) {
419 nameserver.len = sizeof(ULONG);
420 memcpy( nameserver.iabuf,
421 new_lease->options[DHO_DOMAIN_NAME_SERVERS].data +
422 (i * sizeof(ULONG)), sizeof(ULONG) );
423 strcat( nsbuf, piaddr(nameserver) );
424 if( i != addrs-1 ) strcat( nsbuf, "," );
425 }
426
427 DH_DbgPrint(MID_TRACE,("Setting DhcpNameserver: %s\n", nsbuf));
428
429 RegSetValueExA( RegKey, "DhcpNameServer", 0, REG_SZ,
430 (LPBYTE)nsbuf, strlen(nsbuf) + 1 );
431 free( nsbuf );
432 }
433
434 } else {
435 RegDeleteValueW( RegKey, L"DhcpNameServer" );
436 }
437
438 RegCloseKey( RegKey );
439
440}
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
Definition: bufpool.h:45

Referenced by bind_lease().

◆ setup_adapter()

void setup_adapter ( PDHCP_ADAPTER  Adapter,
struct client_lease new_lease 
)

Definition at line 492 of file dhclient.c.

492 {
493 CHAR Buffer[200] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
494 struct iaddr netmask;
495 HKEY hkey;
496 int i;
497 DWORD dwEnableDHCP;
498
499 strcat(Buffer, Adapter->DhclientInfo.name);
501 hkey = NULL;
502
503
504 if( Adapter->NteContext )
505 {
506 DeleteIPAddress( Adapter->NteContext );
507 Adapter->NteContext = 0;
508 }
509
510 /* Set up our default router if we got one from the DHCP server */
511 if( new_lease->options[DHO_SUBNET_MASK].len ) {
513
514 memcpy( netmask.iabuf,
515 new_lease->options[DHO_SUBNET_MASK].data,
516 new_lease->options[DHO_SUBNET_MASK].len );
518 ( *((ULONG*)new_lease->address.iabuf),
519 *((ULONG*)netmask.iabuf),
520 Adapter->IfMib.dwIndex,
521 &Adapter->NteContext,
522 &Adapter->NteInstance );
523 if (hkey) {
524 RegSetValueExA(hkey, "DhcpIPAddress", 0, REG_SZ, (LPBYTE)piaddr(new_lease->address), strlen(piaddr(new_lease->address))+1);
525 Buffer[0] = '\0';
526 for(i = 0; i < new_lease->options[DHO_SUBNET_MASK].len; i++)
527 {
528 sprintf(&Buffer[strlen(Buffer)], "%u", new_lease->options[DHO_SUBNET_MASK].data[i]);
529 if (i + 1 < new_lease->options[DHO_SUBNET_MASK].len)
530 strcat(Buffer, ".");
531 }
532 RegSetValueExA(hkey, "DhcpSubnetMask", 0, REG_SZ, (LPBYTE)Buffer, strlen(Buffer)+1);
533 dwEnableDHCP = 1;
534 RegSetValueExA(hkey, "EnableDHCP", 0, REG_DWORD, (LPBYTE)&dwEnableDHCP, sizeof(DWORD));
535 }
536
537 if( !NT_SUCCESS(Status) )
538 warning("AddIPAddress: %lx\n", Status);
539 }
540
541 if( new_lease->options[DHO_ROUTERS].len ) {
543
544 Adapter->RouterMib.dwForwardDest = 0; /* Default route */
545 Adapter->RouterMib.dwForwardMask = 0;
546 Adapter->RouterMib.dwForwardMetric1 = 1;
547 Adapter->RouterMib.dwForwardIfIndex = Adapter->IfMib.dwIndex;
548
549 if( Adapter->RouterMib.dwForwardNextHop ) {
550 /* If we set a default route before, delete it before continuing */
551 DeleteIpForwardEntry( &Adapter->RouterMib );
552 }
553
554 Adapter->RouterMib.dwForwardNextHop =
555 *((ULONG*)new_lease->options[DHO_ROUTERS].data);
556
558
559 if( !NT_SUCCESS(Status) )
560 warning("CreateIpForwardEntry: %lx\n", Status);
561
562 if (hkey) {
563 Buffer[0] = '\0';
564 for(i = 0; i < new_lease->options[DHO_ROUTERS].len; i++)
565 {
566 sprintf(&Buffer[strlen(Buffer)], "%u", new_lease->options[DHO_ROUTERS].data[i]);
567 if (i + 1 < new_lease->options[DHO_ROUTERS].len)
568 strcat(Buffer, ".");
569 }
570 RegSetValueExA(hkey, "DhcpDefaultGateway", 0, REG_SZ, (LPBYTE)Buffer, strlen(Buffer)+1);
571 }
572 }
573
574 if (hkey)
575 RegCloseKey(hkey);
576}
LONG NTSTATUS
Definition: precomp.h:26
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
unsigned long DWORD
Definition: ntddk_ex.h:95
Status
Definition: gdiplustypes.h:25
DWORD WINAPI AddIPAddress(IPAddr Address, IPMask Netmask, DWORD IfIndex, PULONG NteContext, PULONG NteInstance)
Definition: iphlpapi_main.c:67
DWORD WINAPI DeleteIpForwardEntry(PMIB_IPFORWARDROW pRoute)
DWORD WINAPI CreateIpForwardEntry(PMIB_IPFORWARDROW pRoute)
#define sprintf(buf, format,...)
Definition: sprintf.c:55
#define REG_DWORD
Definition: sdbapi.c:596
ULONG NteInstance
Definition: rosdhcp.h:70
MIB_IPFORWARDROW RouterMib
Definition: rosdhcp.h:67
MIB_IFROW IfMib
Definition: rosdhcp.h:66
DWORD dwIndex
Definition: ifmib.h:38
DWORD dwForwardNextHop
Definition: ipmib.h:74
DWORD dwForwardMetric1
Definition: ipmib.h:88
IF_INDEX dwForwardIfIndex
Definition: ipmib.h:75
DWORD dwForwardDest
Definition: ipmib.h:71
DWORD dwForwardMask
Definition: ipmib.h:72

Referenced by bind_lease().

◆ state_bound()

void state_bound ( void ipp)

Definition at line 628 of file dhclient.c.

629{
630 struct interface_info *ip = ipp;
631
633
634 /* T1 has expired. */
635 make_request(ip, ip->client->active);
636 ip->client->xid = ip->client->packet.xid;
637
638 if (ip->client->active->options[DHO_DHCP_SERVER_IDENTIFIER].len == 4) {
639 memcpy(ip->client->destination.iabuf, ip->client->active->
641 ip->client->destination.len = 4;
642 } else
643 ip->client->destination = iaddr_broadcast;
644
645 time(&ip->client->first_sending);
646 ip->client->interval = ip->client->config->initial_interval;
647 ip->client->state = S_RENEWING;
648
649 /* Send the first packet immediately. */
651}
static int state
Definition: maze.c:121
void make_request(struct interface_info *ip, struct client_lease *lease)
Definition: dhclient.c:1339
struct iaddr iaddr_broadcast
Definition: dhclient.c:80
#define ASSERT_STATE(state_is, state_shouldbe)
Definition: dhclient.c:88

Referenced by bind_lease().

◆ state_init()

void state_init ( void ipp)

Definition at line 210 of file dhclient.c.

211{
212 struct interface_info *ip = ipp;
213
215
216 /* Make a DHCPDISCOVER packet, and set appropriate per-interface
217 flags. */
218 make_discover(ip, ip->client->active);
219 ip->client->xid = ip->client->packet.xid;
220 ip->client->destination = iaddr_broadcast;
221 ip->client->state = S_SELECTING;
222 time(&ip->client->first_sending);
223 ip->client->interval = ip->client->config->initial_interval;
224
225 /* Add an immediate timeout to cause the first DHCPDISCOVER packet
226 to go out. */
228}
void make_discover(struct interface_info *ip, struct client_lease *lease)
Definition: dhclient.c:1256

Referenced by AdapterDiscoveryThread(), device_init(), dhcpnak(), send_request(), state_reboot(), state_selecting(), wined3d_cs_create(), wined3d_cs_exec_reset_state(), and wined3d_device_reset().

◆ state_panic()

void state_panic ( void ipp)

Definition at line 1061 of file dhclient.c.

1062{
1063 struct interface_info *ip = ipp;
1064 uint16_t address_low;
1065 int i;
1066 IPAddr IpAddress;
1067 ULONG Buffer[20];
1069 DWORD ret;
1070 PDHCP_ADAPTER Adapter = AdapterFindInfo(ip);
1071
1072 note("No DHCPOFFERS received.");
1073
1074 if (!Adapter->NteContext)
1075 {
1076 /* Generate an automatic private address */
1077 DbgPrint("DHCPCSVC: Failed to receive a response from a DHCP server. An automatic private address will be assigned.\n");
1078
1079 /* FIXME: The address generation code sucks */
1080 srand(0);
1081
1082 for (;;)
1083 {
1084 address_low = rand();
1085 for (i = 0; i < ip->hw_address.hlen; i++)
1086 address_low += ip->hw_address.haddr[i];
1087
1088 IpAddress = htonl(0xA9FE0000 | address_low); // 169.254.X.X
1089
1090 /* Send an ARP request to check if the IP address is already in use */
1091 BufferSize = sizeof(Buffer);
1092 ret = SendARP(IpAddress,
1093 IpAddress,
1094 Buffer,
1095 &BufferSize);
1096 DH_DbgPrint(MID_TRACE,("DHCPCSVC: SendARP returned %lu\n", ret));
1097 if (ret != 0)
1098 {
1099 /* The IP address is not in use */
1100 DH_DbgPrint(MID_TRACE,("DHCPCSVC: Using automatic private address\n"));
1101 AddIPAddress(IpAddress,
1102 htonl(0xFFFF0000), // 255.255.0.0
1103 Adapter->IfMib.dwIndex,
1104 &Adapter->NteContext,
1105 &Adapter->NteInstance);
1106 return;
1107 }
1108 }
1109 }
1110}
unsigned short int uint16_t
Definition: acefiex.h:54
#define BufferSize
Definition: mmc.h:75
#define DbgPrint
Definition: hal.h:12
void __cdecl srand(_In_ unsigned int _Seed)
DWORD WINAPI SendARP(IPAddr DestIP, IPAddr SrcIP, PULONG pMacAddr, PULONG PhyAddrLen)
#define htonl(x)
Definition: module.h:214
ULONG IPAddr
Definition: pfhook.h:35
int ret
_In_ WDFMEMORY _Out_opt_ size_t * BufferSize
Definition: wdfmemory.h:254

Referenced by send_discover().

◆ state_reboot()

void state_reboot ( void ipp)

Definition at line 172 of file dhclient.c.

173{
174 struct interface_info *ip = ipp;
176
177 /* If we don't remember an active lease, go straight to INIT. */
178 if (!ip->client->active || ip->client->active->is_bootp) {
179 state_init(ip);
180 return;
181 }
182
183 /* We are in the rebooting state. */
184 ip->client->state = S_REBOOTING;
185
186 /* make_request doesn't initialize xid because it normally comes
187 from the DHCPDISCOVER, but we haven't sent a DHCPDISCOVER,
188 so pick an xid now. */
189 ip->client->xid = RtlRandom(&foo);
190
191 /* Make a DHCPREQUEST packet, and set appropriate per-interface
192 flags. */
193 make_request(ip, ip->client->active);
194 ip->client->destination = iaddr_broadcast;
195 time(&ip->client->first_sending);
196 ip->client->interval = ip->client->config->initial_interval;
197
198 /* Zap the medium list... */
199 ip->client->medium = NULL;
200
201 /* Send out the first DHCPREQUEST packet. */
203}

Referenced by DSLeaseIpAddress(), and DSRenewIpAddressLease().

◆ state_selecting()

void state_selecting ( void ipp)

Definition at line 235 of file dhclient.c.

236{
237 struct interface_info *ip = ipp;
238 struct client_lease *lp, *next, *picked;
240
242
243 time(&cur_time);
244
245 /* Cancel state_selecting and send_discover timeouts, since either
246 one could have got us here. */
249
250 /* We have received one or more DHCPOFFER packets. Currently,
251 the only criterion by which we judge leases is whether or
252 not we get a response when we arp for them. */
253 picked = NULL;
254 for (lp = ip->client->offered_leases; lp; lp = next) {
255 next = lp->next;
256
257 /* Check to see if we got an ARPREPLY for the address
258 in this particular lease. */
259 if (!picked) {
260 if( !check_arp(ip,lp) ) goto freeit;
261 picked = lp;
262 picked->next = NULL;
263 } else {
264freeit:
266 }
267 }
268 ip->client->offered_leases = NULL;
269
270 /* If we just tossed all the leases we were offered, go back
271 to square one. */
272 if (!picked) {
273 ip->client->state = S_INIT;
274 state_init(ip);
275 return;
276 }
277
278 /* If it was a BOOTREPLY, we can just take the address right now. */
279 if (!picked->options[DHO_DHCP_MESSAGE_TYPE].len) {
280 ip->client->new = picked;
281
282 /* Make up some lease expiry times
283 XXX these should be configurable. */
284 ip->client->new->expiry = cur_time + 12000;
285 ip->client->new->renewal += cur_time + 8000;
286 ip->client->new->rebind += cur_time + 10000;
287
288 ip->client->state = S_REQUESTING;
289
290 /* Bind to the address we received. */
291 bind_lease(ip);
292 return;
293 }
294
295 /* Go to the REQUESTING state. */
296 ip->client->destination = iaddr_broadcast;
297 ip->client->state = S_REQUESTING;
298 ip->client->first_sending = cur_time;
299 ip->client->interval = ip->client->config->initial_interval;
300
301 /* Make a DHCPREQUEST packet from the lease we picked. */
302 make_request(ip, picked);
303 ip->client->xid = ip->client->packet.xid;
304
305 /* Toss the lease we picked - we'll get it back in a DHCPACK. */
306 free_client_lease(picked);
307
308 /* Add an immediate timeout to send the first DHCPREQUEST packet. */
310}
static unsigned __int64 next
Definition: rand_nt.c:6

Referenced by dhcpoffer(), and state_selecting().

◆ stop_client()

void stop_client ( void  )

Definition at line 129 of file dhclient.c.

130{
131 // AdapterStop();
132 // ApiFree();
133 /* FIXME: Close pipe and kill pipe thread */
134}

Referenced by ServiceMain().

◆ usage()

◆ write_client_lease()

void write_client_lease ( struct interface_info ip,
struct client_lease lease,
int  rewrite 
)

Definition at line 1555 of file dhclient.c.

1557{
1558 static int leases_written;
1559 struct tm *t;
1560 int i;
1561
1562 if (!rewrite) {
1563 if (leases_written++ > 20) {
1565 leases_written = 0;
1566 }
1567 }
1568
1569 /* If the lease came from the config file, we don't need to stash
1570 a copy in the lease database. */
1571 if (lease->is_static)
1572 return;
1573
1574 if (!leaseFile) { /* XXX */
1576 if (!leaseFile) {
1577 error("can't create %s", path_dhclient_db);
1578 return;
1579 }
1580 }
1581
1582 fprintf(leaseFile, "lease {\n");
1583 if (lease->is_bootp)
1584 fprintf(leaseFile, " bootp;\n");
1585 fprintf(leaseFile, " interface \"%s\";\n", ip->name);
1586 fprintf(leaseFile, " fixed-address %s;\n", piaddr(lease->address));
1587 if (lease->filename)
1588 fprintf(leaseFile, " filename \"%s\";\n", lease->filename);
1589 if (lease->server_name)
1590 fprintf(leaseFile, " server-name \"%s\";\n",
1591 lease->server_name);
1592 if (lease->medium)
1593 fprintf(leaseFile, " medium \"%s\";\n", lease->medium->string);
1594 for (i = 0; i < 256; i++)
1595 if (lease->options[i].len)
1596 fprintf(leaseFile, " option %s %s;\n",
1598 pretty_print_option(i, lease->options[i].data,
1599 lease->options[i].len, 1, 1));
1600
1601 t = gmtime(&lease->renewal);
1602 if (t)
1603 fprintf(leaseFile, " renew %d %d/%d/%d %02d:%02d:%02d;\n",
1604 t->tm_wday, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
1605 t->tm_hour, t->tm_min, t->tm_sec);
1606 t = gmtime(&lease->rebind);
1607 if (t)
1608 fprintf(leaseFile, " rebind %d %d/%d/%d %02d:%02d:%02d;\n",
1609 t->tm_wday, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
1610 t->tm_hour, t->tm_min, t->tm_sec);
1611 t = gmtime(&lease->expiry);
1612 if (t)
1613 fprintf(leaseFile, " expire %d %d/%d/%d %02d:%02d:%02d;\n",
1614 t->tm_wday, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
1615 t->tm_hour, t->tm_min, t->tm_sec);
1616 fprintf(leaseFile, "}\n");
1618}
void rewrite_client_leases(struct interface_info *ifi)
Definition: dhclient.c:1533
GLdouble GLdouble t
Definition: gl.h:2047
_Check_return_opt_ _CRTIMP int __cdecl fprintf(_Inout_ FILE *_File, _In_z_ _Printf_format_string_ const char *_Format,...)
_CRTIMP struct tm *__cdecl gmtime(const time_t *_Time)
Definition: time.h:415
unsigned int is_static
Definition: dhcpd.h:164
time_t renewal
Definition: dhcpd.h:155
time_t rebind
Definition: dhcpd.h:155
Definition: time.h:68

Referenced by rewrite_client_leases().

Variable Documentation

◆ debug_trace_level

unsigned long debug_trace_level = 0

Definition at line 71 of file dhclient.c.

◆ iaddr_broadcast

struct iaddr iaddr_broadcast = { 4, { 255, 255, 255, 255 } }

Definition at line 80 of file dhclient.c.

Referenced by state_bound(), state_init(), state_reboot(), and state_selecting().

◆ inaddr_any

struct in_addr inaddr_any

Definition at line 81 of file dhclient.c.

Referenced by init_client(), send_decline(), and send_discover().

◆ leaseFile

FILE* leaseFile

Definition at line 1530 of file dhclient.c.

Referenced by rewrite_client_leases(), and write_client_lease().

◆ log_perror

int log_perror = 1

Definition at line 76 of file dhclient.c.

◆ log_priority

int log_priority

Definition at line 92 of file dhclient.c.

◆ no_daemon

int no_daemon

Definition at line 93 of file dhclient.c.

◆ path_dhclient_conf

char* path_dhclient_conf = _PATH_DHCLIENT_CONF

Definition at line 73 of file dhclient.c.

◆ path_dhclient_db

char* path_dhclient_db = NULL

Definition at line 74 of file dhclient.c.

Referenced by rewrite_client_leases(), and write_client_lease().

◆ privfd

int privfd

Definition at line 77 of file dhclient.c.

◆ routefd

int routefd

Definition at line 95 of file dhclient.c.

◆ scripttime

time_t scripttime

Definition at line 107 of file dhclient.c.

◆ sockaddr_broadcast

struct sockaddr_in sockaddr_broadcast

Definition at line 82 of file dhclient.c.

Referenced by init_client(), send_decline(), and send_discover().

◆ unknown_ok

int unknown_ok = 1

Definition at line 94 of file dhclient.c.

Referenced by check_option().