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authorDenys Vlasenko <vda.linux@googlemail.com>2010-03-22 14:22:14 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2010-03-22 14:22:14 (GMT)
commit6b61629397e121de9e879ed31b9309e56f9286bc (patch)
tree9a52938f0c53370c35de45393b809f90bb91a61a
parentdde8bdcc5bd6f25157ca5364b2991c837f1ef364 (diff)
downloadbusybox-6b61629397e121de9e879ed31b9309e56f9286bc.tar.gz
busybox-6b61629397e121de9e879ed31b9309e56f9286bc.tar.bz2
udhcp: make rfc derived doc more readable (but it still is contradictory)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--networking/udhcp/common.h101
1 files changed, 41 insertions, 60 deletions
diff --git a/networking/udhcp/common.h b/networking/udhcp/common.h
index 2ce6759..2179c53 100644
--- a/networking/udhcp/common.h
+++ b/networking/udhcp/common.h
@@ -176,67 +176,48 @@ uint8_t *dname_enc(const uint8_t *cstr, int clen, const char *src, int *retlen)
// RFC 2131 Table 5: Fields and options used by DHCP clients
//
-// Field DHCPDISCOVER DHCPREQUEST DHCPDECLINE,
-// DHCPINFORM DHCPRELEASE
-// ----- ------------ ----------- -----------
-// 'op' BOOTREQUEST BOOTREQUEST BOOTREQUEST
-// 'hops' 0 0 0
-// 'xid' selected by client 'xid' from server selected by
-// DHCPOFFER message client
-// 'secs' 0 or seconds since 0 or seconds since 0
-// DHCP process started DHCP process started
-// 'flags' Set 'BROADCAST' Set 'BROADCAST' 0
-// flag if client flag if client
-// requires broadcast requires broadcast
-// reply reply
-// 'ciaddr' 0 (DHCPDISCOVER) 0 or client's 0 (DHCPDECLINE)
-// client's network address client's network
-// network address (BOUND/RENEW/REBIND) address
-// (DHCPINFORM) (DHCPRELEASE)
-// 'yiaddr' 0 0 0
-// 'siaddr' 0 0 0
-// 'giaddr' 0 0 0
-// 'chaddr' client's hardware client's hardware client's hardware
-// address address address
-// 'sname' options, if options, if (unused)
-// indicated in indicated in
-// 'sname/file' 'sname/file'
-// option; otherwise option; otherwise
-// unused unused
-// 'file' options, if options, if (unused)
-// indicated in indicated in
-// 'sname/file' 'sname/file'
-// option; otherwise option; otherwise
-// unused unused
-// 'options' options options (unused)
+// Fiels 'hops', 'yiaddr', 'siaddr', 'giaddr' are always zero
//
-// Option DHCPDISCOVER DHCPREQUEST DHCPDECLINE,
-// DHCPINFORM DHCPRELEASE
-// ------ ------------ ----------- -----------
-// Requested IP address MAY MUST (in MUST
-// (DISCOVER) SELECTING or (DHCPDECLINE),
-// MUST NOT INIT-REBOOT) MUST NOT
-// (INFORM) MUST NOT (in (DHCPRELEASE)
-// BOUND or
-// RENEWING)
-// IP address lease time MAY MAY MUST NOT
-// (DISCOVER)
-// MUST NOT
-// (INFORM)
-// Use 'file'/'sname' fields MAY MAY MAY
-// Client identifier MAY MAY MAY
-// Vendor class identifier MAY MAY MUST NOT
-// Server identifier MUST NOT MUST (after MUST
-// SELECTING)
-// MUST NOT (after
-// INIT-REBOOT,
-// BOUND, RENEWING
-// or REBINDING)
-// Parameter request list MAY MAY MUST NOT
-// Maximum message size MAY MAY MUST NOT
-// Message SHOULD NOT SHOULD NOT SHOULD
-// Site-specific MAY MAY MUST NOT
-// All others MAY MAY MUST NOT
+// Field DHCPDISCOVER DHCPINFORM DHCPREQUEST DHCPDECLINE DHCPRELEASE
+// ----- ------------ ------------ ----------- ----------- -----------
+// 'xid' selected by client selected by client 'xid' from server selected by client selected by client
+// DHCPOFFER message
+// 'secs' 0 or seconds since 0 or seconds since 0 or seconds since 0 0
+// DHCP process started DHCP process started DHCP process started
+// 'flags' Set 'BROADCAST' Set 'BROADCAST' Set 'BROADCAST' 0 0
+// flag if client flag if client flag if client
+// requires broadcast requires broadcast requires broadcast
+// reply reply reply
+// 'ciaddr' 0 client's IP 0 or client's IP 0 client's IP
+// (BOUND/RENEW/REBIND)
+// 'chaddr' client's MAC client's MAC client's MAC client's MAC client's MAC
+// 'sname' options or sname options or sname options or sname (unused) (unused)
+// 'file' options or file options or file options or file (unused) (unused)
+// 'options' options options options message type opt message type opt
+//
+// Option DHCPDISCOVER DHCPINFORM DHCPREQUEST DHCPDECLINE DHCPRELEASE
+// ------ ------------ ---------- ----------- ----------- -----------
+// Requested IP address MAY MUST NOT MUST (in MUST MUST NOT
+// SELECTING or
+// INIT-REBOOT)
+// MUST NOT (in
+// BOUND or
+// RENEWING)
+// IP address lease time MAY MUST NOT MAY MUST NOT MUST NOT
+// Use 'file'/'sname' fields MAY MAY MAY MAY MAY
+// Client identifier MAY MAY MAY MAY MAY
+// Vendor class identifier MAY MAY MAY MUST NOT MUST NOT
+// Server identifier MUST NOT MUST NOT MUST (after MUST MUST
+// SELECTING)
+// MUST NOT (after
+// INIT-REBOOT,
+// BOUND, RENEWING
+// or REBINDING)
+// Parameter request list MAY MAY MAY MUST NOT MUST NOT
+// Maximum message size MAY MAY MAY MUST NOT MUST NOT
+// Message SHOULD NOT SHOULD NOT SHOULD NOT SHOULD SHOULD
+// Site-specific MAY MAY MAY MUST NOT MUST NOT
+// All others MAY MAY MAY MUST NOT MUST NOT
/*** Logging ***/