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2021-03-20Fixed some errors found by valgrind and pvs-studio (#11)[anp/hsw]
* Fix errors found by valgrind ==12312== Syscall param sendmsg(msg.msg_iov[0]) points to uninitialised byte(s) ==12312== at 0x486CCF0: sendmsg (in /lib/libpthread-2.22.so) ==12312== by 0x12F57F: rtnl_talk (libnetlink.c:316) ==12312== by 0x132DA3: genl_resolve_mcg (genl.c:52) ==12312== by 0x484E1CB: init (vlan_mon.c:528) ==12312== by 0x484CDC0: vlan_mon_register_proto (vlan_mon.c:48) ==12312== by 0x510B763: load_vlan_mon (pppoe.c:1914) ==12312== by 0x510BFF2: load_config (pppoe.c:2064) ==12312== by 0x510C22A: pppoe_init (pppoe.c:2108) ==12312== by 0x483E9EB: triton_load_modules (triton.c:704) ==12312== by 0x1384B2: main (main.c:339) ==12312== Address 0xbedacdd8 is on thread 1's stack ==12312== in frame #2, created by genl_resolve_mcg (genl.c:23) ==12312== 15 bytes in 1 blocks are definitely lost in loss record 352 of 836 ==12312== at 0x482A9A9: malloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) ==12312== by 0x4B97524: strdup (in /lib/libc-2.22.so) ==12312== by 0x12C30C: init (telnet.c:769) ==12312== by 0x483E9EB: triton_load_modules (triton.c:704) ==12312== by 0x1384B2: main (main.c:339) ==12312== ==12312== 15 bytes in 1 blocks are definitely lost in loss record 353 of 836 ==12312== at 0x482A9A9: malloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) ==12312== by 0x4B97524: strdup (in /lib/libc-2.22.so) ==12312== by 0x12D60A: init (tcp.c:392) ==12312== by 0x483E9EB: triton_load_modules (triton.c:704) ==12312== by 0x1384B2: main (main.c:339) * Fix another warnings by cppcheck [accel-pppd/ctrl/ipoe/arp.c:256]: (error) Uninitialized variable: n [accel-pppd/ctrl/pppoe/mac_filter.c:90]: (warning) %x in format string (no. 1) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:90]: (warning) %x in format string (no. 2) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:90]: (warning) %x in format string (no. 3) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:90]: (warning) %x in format string (no. 4) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:90]: (warning) %x in format string (no. 5) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:90]: (warning) %x in format string (no. 6) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:129]: (warning) %x in format string (no. 1) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:129]: (warning) %x in format string (no. 2) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:129]: (warning) %x in format string (no. 3) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:129]: (warning) %x in format string (no. 4) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:129]: (warning) %x in format string (no. 5) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:129]: (warning) %x in format string (no. 6) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:158]: (warning) %x in format string (no. 1) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:158]: (warning) %x in format string (no. 2) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:158]: (warning) %x in format string (no. 3) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:158]: (warning) %x in format string (no. 4) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:158]: (warning) %x in format string (no. 5) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/mac_filter.c:158]: (warning) %x in format string (no. 6) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ctrl/pppoe/pppoe.c:738]: (warning) Possible null pointer dereference [accel-pppd/ipv6/dhcpv6.c:911]: (warning) %x in format string (no. 1) requires 'unsigned int *' but the argument type is 'int *'. [accel-pppd/ipv6/dhcpv6.c:911]: (warning) %x in format string (no. 2) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ipv6/dhcpv6.c:911]: (warning) %x in format string (no. 3) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ipv6/dhcpv6.c:911]: (warning) %x in format string (no. 4) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/libnetlink/libnetlink.c:515]: (warning) Possible null pointer dereference [accel-pppd/ppp/ipv6cp_opt_intfid.c:185]: (warning) %x in format string (no. 1) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ppp/ipv6cp_opt_intfid.c:298]: (warning) %x in format string (no. 1) requires 'unsigned int *' but the argument type is 'int *'. [accel-pppd/ppp/ipv6cp_opt_intfid.c:298]: (warning) %x in format string (no. 2) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ppp/ipv6cp_opt_intfid.c:298]: (warning) %x in format string (no. 3) requires 'unsigned int *' but the argument type is 'signed int *'. [accel-pppd/ppp/ipv6cp_opt_intfid.c:298]: (warning) %x in format string (no. 4) requires 'unsigned int *' but the argument type is 'signed int *'. * Suppress compiler warnings * Fix locking errors /opt/pvs/accel-ppp/accel-pppd/extra/pppd_compat.c 279 warn V1020 The function exited without calling the 'sigchld_unlock' function. Check lines: 279, 249. /opt/pvs/accel-ppp/accel-pppd/extra/pppd_compat.c 333 warn V1020 The function exited without calling the 'sigchld_unlock' function. Check lines: 333, 315. /opt/pvs/accel-ppp/accel-pppd/extra/pppd_compat.c 422 warn V1020 The function exited without calling the 'sigchld_unlock' function. Check lines: 422, 372. /opt/pvs/accel-ppp/accel-pppd/extra/pppd_compat.c 488 warn V1020 The function exited without calling the 'sigchld_unlock' function. Check lines: 488, 468. /opt/pvs/accel-ppp/accel-pppd/triton/mempool.c 119 warn V1020 The function exited without calling the 'pthread_spin_unlock' function. Check lines: 119, 116. * Fix array len errors /opt/pvs/accel-ppp/accel-pppd/triton/conf_file.c 75 warn V557 Array underrun is possible. The value of 'len - 1' index could reach -1. /opt/pvs/accel-ppp/accel-pppd/triton/conf_file.c 76 warn V557 Array underrun is possible. The value of '-- len' index could reach -1. * Fix possible memory leaks /opt/pvs/accel-ppp/accel-pppd/radius/radius.c 936 err V773 The function was exited without releasing the 'str' pointer. A memory leak is possible. /opt/pvs/accel-ppp/accel-pppd/radius/serv.c 622 err V773 The function was exited without releasing the 'str' pointer. A memory leak is possible. /opt/pvs/accel-ppp/accel-pppd/triton/conf_file.c 144 err V773 The function was exited without releasing the 'raw' pointer. A memory leak is possible. * Fix unsafe code /opt/pvs/accel-ppp/accel-pppd/cli/tcp.c 364 warn V1004 The 'host' pointer was used unsafely after it was verified against nullptr. Check lines: 338, 364. /opt/pvs/accel-ppp/accel-pppd/cli/telnet.c 701 warn V1004 The 'host' pointer was used unsafely after it was verified against nullptr. Check lines: 675, 701. /opt/pvs/accel-ppp/accel-pppd/extra/ippool.c 241 err V614 Potentially uninitialized pointer 'pos' used. /opt/pvs/accel-ppp/accel-pppd/radius/dict.c 165 err V614 Uninitialized pointer 'parent_items' used. * Remove duplicate code /opt/pvs/accel-ppp/accel-pppd/radius/serv.c 202 warn V547 Expression 'ts.tv_sec < req->serv->fail_time' is always false. * Fix treating signed bool variables as unsigned * Add nullptr checking /opt/pvs/accel-ppp/accel-pppd/ipv6/dhcpv6.c 886 err V595 The 'opt->val' pointer was utilized before it was verified against nullptr. Check lines: 886, 890. /opt/pvs/accel-ppp/accel-pppd/ipv6/nd.c 479 err V595 The 'opt->val' pointer was utilized before it was verified against nullptr. Check lines: 479, 483. /opt/pvs/accel-ppp/accel-pppd/radius/auth.c 152 err V595 The 'rpd->auth_ctx' pointer was utilized before it was verified against nullptr. Check lines: 152, 154. /opt/pvs/accel-ppp/accel-pppd/triton/conf_file.c 114 err V595 The 'cur_sect' pointer was utilized before it was verified against nullptr. Check lines: 114, 117. * Add logging of exit conditions * Clarify calculation [accel-pppd/ppp/ccp_mppe.c:281]: (style) Clarify calculation precedence for '&' and '?'. [accel-pppd/ppp/ccp_mppe.c:282]: (style) Clarify calculation precedence for '&' and '?'. [accel-pppd/ppp/ccp_mppe.c:283]: (style) Clarify calculation precedence for '&' and '?'. [accel-pppd/ppp/ccp_mppe.c:284]: (style) Clarify calculation precedence for '&' and '?'. [accel-pppd/ppp/ccp_mppe.c:285]: (style) Clarify calculation precedence for '&' and '?'. [accel-pppd/ppp/ccp_mppe.c:286]: (style) Clarify calculation precedence for '&' and '?'. [drivers/ipoe/ipoe.c:307]: (style) Clarify calculation precedence for '&' and '?'. * Fix void calculations [accel-pppd/ctrl/pppoe/disc.c:211]: (portability) 'pkt' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/ctrl/pptp/pptp.c:150]: (portability) 'buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/acct.c:37]: (portability) 'req.pack.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/auth.c:35]: (portability) 'req.pack.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/auth.c:79]: (portability) 'req.pack.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/dm_coa.c:43]: (portability) 'pack.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/dm_coa.c:47]: (portability) 'pack.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/dm_coa.c:57]: (portability) 'pack.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/dm_coa.c:65]: (portability) 'req.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/dm_coa.c:97]: (portability) 'req.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/radius/serv.c:364]: (portability) 'req.pack.buf' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/triton/mempool.c:115]: (portability) 'mmap_ptr' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/triton/mempool.c:122]: (portability) 'mmap_ptr' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/triton/mempool.c:276]: (portability) 'ptr' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. * Fix void part 2 [accel-pppd/ipv6/dhcpv6.c:844]: (portability) 'conf_dnssl' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/ipv6/nd.c:199]: (portability) '(void*)dnsslinfo' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [accel-pppd/ipv6/nd.c:432]: (portability) 'conf_dnssl' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. * Fix null pointer dereference [accel-pppd/ctrl/ipoe/ipoe.c:2048]: (warning) Possible null pointer dereference: eth [accel-pppd/ctrl/ipoe/ipoe.c:2049]: (warning) Possible null pointer dereference: iph * Remove redundant check /opt/pvs/accel-ppp/accel-pppd/ctrl/l2tp/packet.c 656 warn V547 Expression 'attr->length <= 16' is always false. * PR fixes * PR fixes 2
2015-11-18ipoe: do not send immediate Accounting Stop in soft terminate modeDmitry Kozlov
2015-02-20ppp: create ppp units after authenticationFrançois Cachereul
This avaid allocating a ppp unit when authentication failed Split establish_ppp in two functions estabish_ppp and connect_ppp_channel. The fist one connect the channel on an instance of /dev/ppp, allocate channel resources and start first ppp layer. The second functions create ppp unit and connect the channel to this unit. It is called after authentication. destablish_ppp is also split in two function for symmetry and ppp_terminate is adapted to handle the case when the unit is not created. Signed-off-by: François Cachereul <f.cachereul@alphalink.fr>
2015-02-20ppp: set mtu and mru after unit creationFrançois Cachereul
In the following patch PPP unit will be created after MRU negotation. Signed-off-by: François Cachereul <f.cachereul@alphalink.fr>
2014-10-29ppp: cleanning of ppp.hFrançois Cachereul
removes no longer used structures and prototypes. Signed-off-by: François Cachereul <f.cachereul@alphalink.fr> Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
2013-01-24generalize single-session checkingKozlov Dmitry
2013-01-24move 'comp' field from struct ppp_t to struct ap_sessionroot
Conflicts: accel-pppd/ctrl/openvpn/openvpn.c
2012-06-19general preparation for IPoE integrationKozlov Dmitry
2012-06-05ppp: implemented unit cacheKozlov Dmitry
If enabled accel-pppd will not destroy interface immediately after corresponding session is terminated, instead interface will be brought down and placed to cache for later use for new sessions. It should reduce kernel interface creation/deletion rate lack and increase responsibility of daemon
2012-05-14cli: add 'comp' field to 'show sessions' to indicate compression/encryption ↵Kozlov Dmitry
method
2012-04-21implemented per CTRL mppe configKozlov Dmitry
2012-01-13set FD_CLOEXEC on opened file descriptorsKozlov Dmitry
2011-12-27radius, ippool: implemented Framed-Pool attributeKozlov Dmitry
2011-08-29ipv6_dhcp: add routes to delegated prefixesKozlov Dmitry
2011-08-26ppp: fix optional layers startup issueKozlov Dmitry
2011-08-24ppp: reworked layer startup procedureKozlov Dmitry
ppp: make IPCP and IPV6CP optional depends on configuration
2011-08-23ppp: ipv6: multiple prefixes, route option, rdnss option implementationKozlov Dmitry
2011-08-23ppp: Neighbor Discovery for IP version 6 (prefix only)Kozlov Dmitry
2011-08-22futher ipv6 workKozlov Dmitry
2011-08-20Merge branch 'ipv6'Dmitry Kozlov
2011-08-20ppp: initial IPV6CP supportDmitry Kozlov
2011-08-19snmp supportKozlov Dmitry
2011-06-10ppp: implemented passive CCPKozlov Dmitry
2011-05-17ppp: delay IPCP acknowledge until CCP brings upDmitry Kozlov
2011-04-20ppp: introduced new option 'single-session' to control single session per userKozlov Dmitry
2011-01-26ppp, radius: Acct-Terminate-Cause=Lost-Carrier when ppp terminates by lcp ↵Dmitry Kozlov
reply absence
2011-01-17memory usage optimizationDmitry Kozlov
2011-01-05rename accel-pptp to accel-pppDmitry Kozlov