Changeset fe8dfa6 in mainline for uspace/srv/net/nil/eth


Ignore:
Timestamp:
2011-01-11T15:57:39Z (15 years ago)
Author:
Martin Decky <martin@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
77429d3
Parents:
04aade50
Message:

networking: streamline NIL skeleton and NIL modules (nildummy, eth)

Location:
uspace/srv/net/nil/eth
Files:
2 deleted
3 edited

Legend:

Unmodified
Added
Removed

  • uspace/srv/net/nil/eth/Makefile

    r04aade50 rfe8dfa6  
    4242
    4343SOURCES = \
    44         eth.c \
    45         eth_module.c
     44        eth.c
    4645
    4746include $(USPACE_PREFIX)/Makefile.common

  • uspace/srv/net/nil/eth/eth.c

    r04aade50 rfe8dfa6  
    4545
    4646#include <ipc/ipc.h>
     47#include <ipc/nil.h>
    4748#include <ipc/net.h>
    4849#include <ipc/services.h>
    … …  
    5657#include <netif_remote.h>
    5758#include <net_interface.h>
    58 #include <nil_interface.h>
    5959#include <il_interface.h>
    6060#include <adt/measured_strings.h>
    6161#include <packet_client.h>
    6262#include <packet_remote.h>
    63 #include <nil_local.h>
     63#include <nil_skel.h>
    6464
    6565#include "eth.h"
    66 #include "eth_header.h"
    6766
    6867/** The module name. */
    … …  
    7271#define ETH_PREFIX \
    7372        (sizeof(eth_header_t) + sizeof(eth_header_lsap_t) + \
    74         sizeof(eth_header_snap_t))
     73            sizeof(eth_header_snap_t))
    7574
    7675/** Reserved packet suffix length. */
    77 #define ETH_SUFFIX \
    78         sizeof(eth_fcs_t)
     76#define ETH_SUFFIX  (sizeof(eth_fcs_t))
    7977
    8078/** Maximum packet content length. */
    81 #define ETH_MAX_CONTENT 1500u
     79#define ETH_MAX_CONTENT  1500u
    8280
    8381/** Minimum packet content length. */
    84 #define ETH_MIN_CONTENT 46u
     82#define ETH_MIN_CONTENT  46u
    8583
    8684/** Maximum tagged packet content length. */
    8785#define ETH_MAX_TAGGED_CONTENT(flags) \
    8886        (ETH_MAX_CONTENT - \
    89         ((IS_8023_2_LSAP(flags) || IS_8023_2_SNAP(flags)) ? \
    90         sizeof(eth_header_lsap_t) : 0) - \
    91         (IS_8023_2_SNAP(flags) ? sizeof(eth_header_snap_t) : 0))
     87            ((IS_8023_2_LSAP(flags) || IS_8023_2_SNAP(flags)) ? \
     88            sizeof(eth_header_lsap_t) : 0) - \
     89            (IS_8023_2_SNAP(flags) ? sizeof(eth_header_snap_t) : 0))
    9290
    9391/** Minimum tagged packet content length. */
    9492#define ETH_MIN_TAGGED_CONTENT(flags) \
    9593        (ETH_MIN_CONTENT - \
    96         ((IS_8023_2_LSAP(flags) || IS_8023_2_SNAP(flags)) ? \
    97         sizeof(eth_header_lsap_t) : 0) - \
    98         (IS_8023_2_SNAP(flags) ? sizeof(eth_header_snap_t) : 0))
     94            ((IS_8023_2_LSAP(flags) || IS_8023_2_SNAP(flags)) ? \
     95            sizeof(eth_header_lsap_t) : 0) - \
     96            (IS_8023_2_SNAP(flags) ? sizeof(eth_header_snap_t) : 0))
    9997
    10098/** Dummy flag shift value. */
    101 #define ETH_DUMMY_SHIFT 0
     99#define ETH_DUMMY_SHIFT  0
    102100
    103101/** Mode flag shift value. */
    104 #define ETH_MODE_SHIFT  1
     102#define ETH_MODE_SHIFT  1
    105103
    106104/** Dummy device flag.
    107105 * Preamble and FCS are mandatory part of the packets.
    108106 */
    109 #define ETH_DUMMY               (1 << ETH_DUMMY_SHIFT)
     107#define ETH_DUMMY  (1 << ETH_DUMMY_SHIFT)
    110108
    111109/** Returns the dummy flag.
    112110 * @see ETH_DUMMY
    113111 */
    114 #define IS_DUMMY(flags)         ((flags) & ETH_DUMMY)
     112#define IS_DUMMY(flags)  ((flags) & ETH_DUMMY)
    115113
    116114/** Device mode flags.
    … …  
    119117 * @see ETH_8023_2_SNAP
    120118 */
    121 #define ETH_MODE_MASK           (3 << ETH_MODE_SHIFT)
     119#define ETH_MODE_MASK  (3 << ETH_MODE_SHIFT)
    122120
    123121/** DIX Ethernet mode flag. */
    124 #define ETH_DIX                 (1 << ETH_MODE_SHIFT)
    125 
    126 /** Returns whether the DIX Ethernet mode flag is set.
    127  *
    128  * @param[in] flags     The ethernet flags.
     122#define ETH_DIX  (1 << ETH_MODE_SHIFT)
     123
     124/** Return whether the DIX Ethernet mode flag is set.
     125 *
     126 * @param[in] flags Ethernet flags.
    129127 * @see ETH_DIX
    130  */
    131 #define IS_DIX(flags)           (((flags) & ETH_MODE_MASK) == ETH_DIX)
     128 *
     129 */
     130#define IS_DIX(flags)  (((flags) & ETH_MODE_MASK) == ETH_DIX)
    132131
    133132/** 802.3 + 802.2 + LSAP mode flag. */
    134 #define ETH_8023_2_LSAP         (2 << ETH_MODE_SHIFT)
    135 
    136 /** Returns whether the 802.3 + 802.2 + LSAP mode flag is set.
    137  *
    138  * @param[in] flags     The ethernet flags.
     133#define ETH_8023_2_LSAP  (2 << ETH_MODE_SHIFT)
     134
     135/** Return whether the 802.3 + 802.2 + LSAP mode flag is set.
     136 *
     137 * @param[in] flags Ethernet flags.
    139138 * @see ETH_8023_2_LSAP
    140  */
    141 #define IS_8023_2_LSAP(flags)   (((flags) & ETH_MODE_MASK) == ETH_8023_2_LSAP)
     139 *
     140 */
     141#define IS_8023_2_LSAP(flags)  (((flags) & ETH_MODE_MASK) == ETH_8023_2_LSAP)
    142142
    143143/** 802.3 + 802.2 + LSAP + SNAP mode flag. */
    144 #define ETH_8023_2_SNAP         (3 << ETH_MODE_SHIFT)
    145 
    146 /** Returns whether the 802.3 + 802.2 + LSAP + SNAP mode flag is set.
    147  *
    148  * @param[in] flags     The ethernet flags.
     144#define ETH_8023_2_SNAP  (3 << ETH_MODE_SHIFT)
     145
     146/** Return whether the 802.3 + 802.2 + LSAP + SNAP mode flag is set.
     147 *
     148 * @param[in] flags Ethernet flags.
    149149 * @see ETH_8023_2_SNAP
    150  */
    151 #define IS_8023_2_SNAP(flags)   (((flags) & ETH_MODE_MASK) == ETH_8023_2_SNAP)
     150 *
     151 */
     152#define IS_8023_2_SNAP(flags)  (((flags) & ETH_MODE_MASK) == ETH_8023_2_SNAP)
    152153
    153154/** Type definition of the ethernet address type.
    … …  
    836837}
    837838
    838 int nil_message_standalone(const char *name, ipc_callid_t callid,
    839     ipc_call_t *call, ipc_call_t *answer, size_t *answer_count)
     839int nil_module_message(ipc_callid_t callid, ipc_call_t *call,
     840    ipc_call_t *answer, size_t *answer_count)
    840841{
    841842        measured_string_t *address;
    … …  
    893894}
    894895
    895 /** Default thread for new connections.
    896  *
    897  * @param[in] iid       The initial message identifier.
    898  * @param[in] icall     The initial message call structure.
    899  */
    900 static void nil_client_connection(ipc_callid_t iid, ipc_call_t *icall)
    901 {
    902         /*
    903          * Accept the connection
    904          *  - Answer the first IPC_M_CONNECT_ME_TO call.
    905          */
    906         ipc_answer_0(iid, EOK);
    907        
    908         while (true) {
    909                 ipc_call_t answer;
    910                 size_t count;
    911                
    912                 /* Clear the answer structure */
    913                 refresh_answer(&answer, &count);
    914                
    915                 /* Fetch the next message */
    916                 ipc_call_t call;
    917                 ipc_callid_t callid = async_get_call(&call);
    918                
    919                 /* Process the message */
    920                 int res = nil_module_message_standalone(NAME, callid, &call,
    921                     &answer, &count);
    922                
    923                 /*
    924                  * End if told to either by the message or the processing
    925                  * result.
    926                  */
    927                 if ((IPC_GET_IMETHOD(call) == IPC_M_PHONE_HUNGUP) ||
    928                     (res == EHANGUP))
    929                         return;
    930                
    931                 /* Answer the message */
    932                 answer_call(callid, res, &answer, count);
    933         }
    934 }
    935 
    936896int main(int argc, char *argv[])
    937897{
    938         int rc;
    939        
    940898        /* Start the module */
    941         rc = nil_module_start_standalone(nil_client_connection);
    942         return rc;
     899        return nil_module_start(SERVICE_ETHERNET);
    943900}
    944901

  • uspace/srv/net/nil/eth/eth.h

    r04aade50 rfe8dfa6  
    4444#include <adt/measured_strings.h>
    4545
     46/** Ethernet address length. */
     47#define ETH_ADDR  6
     48
     49/** Ethernet header preamble value. */
     50#define ETH_PREAMBLE  0x55
     51
     52/** Ethernet header start of frame value. */
     53#define ETH_SFD  0xD5
     54
     55/** IEEE 802.2 unordered information control field. */
     56#define IEEE_8023_2_UI  0x03
     57
     58/** Type definition of the Ethernet header IEEE 802.3 + 802.2 + SNAP extensions.
     59 * @see eth_header_snap
     60 */
     61typedef struct eth_header_snap eth_header_snap_t;
     62
     63/** Type definition of the Ethernet header IEEE 802.3 + 802.2 + SNAP extensions.
     64 * @see eth_header_lsap
     65 */
     66typedef struct eth_header_lsap eth_header_lsap_t;
     67
     68/** Type definition of the Ethernet header LSAP extension.
     69 * @see eth_ieee_lsap
     70 */
     71typedef struct eth_ieee_lsap eth_ieee_lsap_t;
     72
     73/** Type definition of the Ethernet header SNAP extension.
     74 * @see eth_snap
     75 */
     76typedef struct eth_snap eth_snap_t;
     77
     78/** Type definition of the Ethernet header preamble.
     79 * @see preamble
     80 */
     81typedef struct eth_preamble eth_preamble_t;
     82
     83/** Type definition of the Ethernet header.
     84 * @see eth_header
     85 */
     86typedef struct eth_header eth_header_t;
     87
     88/** Ethernet header Link Service Access Point extension. */
     89struct eth_ieee_lsap {
     90        /**
     91         * Destination Service Access Point identifier.
     92         * The possible values are assigned by an IEEE committee.
     93         */
     94        uint8_t dsap;
     95       
     96        /**
     97         * Source Service Access Point identifier.
     98         * The possible values are assigned by an IEEE committee.
     99         */
     100        uint8_t ssap;
     101       
     102        /**
     103         * Control parameter.
     104         * The possible values are assigned by an IEEE committee.
     105         */
     106        uint8_t ctrl;
     107} __attribute__ ((packed));
     108
     109/** Ethernet header SNAP extension. */
     110struct eth_snap {
     111        /** Protocol identifier or organization code. */
     112        uint8_t protocol[3];
     113       
     114        /**
     115         * Ethernet protocol identifier in the network byte order (big endian).
     116         * @see ethernet_protocols.h
     117         */
     118        uint16_t ethertype;
     119} __attribute__ ((packed));
     120
     121/** Ethernet header preamble.
     122 *
     123 * Used for dummy devices.
     124 */
     125struct eth_preamble {
     126        /**
     127         * Controlling preamble used for the frame transmission synchronization.
     128         * All should be set to ETH_PREAMBLE.
     129         */
     130        uint8_t preamble[7];
     131       
     132        /**
     133         * Start of Frame Delimiter used for the frame transmission
     134         * synchronization.
     135         * Should be set to ETH_SFD.
     136         */
     137        uint8_t sfd;
     138} __attribute__ ((packed));
     139
     140/** Ethernet header. */
     141struct eth_header {
     142        /** Destination host Ethernet address (MAC address). */
     143        uint8_t destination_address[ETH_ADDR];
     144        /** Source host Ethernet address (MAC address). */
     145        uint8_t source_address[ETH_ADDR];
     146       
     147        /**
     148         * Ethernet protocol identifier in the network byte order (big endian).
     149         * @see ethernet_protocols.h
     150         */
     151        uint16_t ethertype;
     152} __attribute__ ((packed));
     153
     154/** Ethernet header IEEE 802.3 + 802.2 extension. */
     155struct eth_header_lsap {
     156        /** Ethernet header. */
     157        eth_header_t header;
     158       
     159        /**
     160         * LSAP extension.
     161         * If DSAP and SSAP are set to ETH_LSAP_SNAP the SNAP extension is being
     162         * used.
     163         * If DSAP and SSAP fields are equal to ETH_RAW the raw Ethernet packet
     164         * without any extensions is being used and the frame content starts
     165         * rigth after the two fields.
     166         */
     167        eth_ieee_lsap_t lsap;
     168} __attribute__ ((packed));
     169
     170/** Ethernet header IEEE 802.3 + 802.2 + SNAP extensions. */
     171struct eth_header_snap {
     172        /** Ethernet header. */
     173        eth_header_t header;
     174       
     175        /**
     176         * LSAP extension.
     177         * If DSAP and SSAP are set to ETH_LSAP_SNAP the SNAP extension is being
     178         * used.
     179         * If DSAP and SSAP fields are equal to ETH_RAW the raw Ethernet packet
     180         * without any extensions is being used and the frame content starts
     181         * rigth after the two fields.
     182         */
     183        eth_ieee_lsap_t lsap;
     184       
     185        /** SNAP extension. */
     186        eth_snap_t snap;
     187} __attribute__ ((packed));
     188
     189/** Ethernet Frame Check Sequence. */
     190typedef uint32_t eth_fcs_t;
     191
    46192/** Type definition of the Ethernet global data.
    47193 * @see eth_globals
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