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Added changes to permit pppoe interfaces #38
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Original file line number | Diff line number | Diff line change |
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@@ -201,8 +201,10 @@ void rebuildIfVc () { | |
** | ||
*/ | ||
void buildIfVc(void) { | ||
struct ifreq IfVc[ sizeof( IfDescVc ) / sizeof( IfDescVc[ 0 ] ) ]; | ||
struct ifreq IfVc[ MAX_IF * 2 ]; /* allocate in double in order to get as much information as possible */ | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Why |
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struct ifreq *IfEp; | ||
struct IfDesc *dp; | ||
struct SubnetList *allowednet, *currsubnet; | ||
struct Config *config = getCommonConfig(); | ||
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int Sock; | ||
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@@ -246,6 +248,19 @@ void buildIfVc(void) { | |
if (IfNext < IfPt + 1) | ||
IfNext = IfPt + 1; | ||
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/* don't retrieve any further info if MAX_IF is reached | ||
*/ | ||
if ( IfDescEp >= &IfDescVc[ MAX_IF ] ) { | ||
my_log(LOG_DEBUG, 0, "Too many interfaces, skipping all since %s", IfPt->ifr_name); | ||
break; | ||
} | ||
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/* don't retrieve any info from non-IPv4 interfaces | ||
*/ | ||
if ( IfPt->ifr_addr.sa_family != AF_INET ) { | ||
my_log(LOG_DEBUG, 0, "Interface is not AF_INET, skipping %s (family %d)", IfPt->ifr_name, IfPt->ifr_addr.sa_family); | ||
continue; | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Skipping interfaces without IPv4 address would mean igmpproxy itself would not see this interface. Why such change is needed? Previously these interfaces was normally processed just marked as non-IPv4. |
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} | ||
strncpy( IfDescEp->Name, IfPt->ifr_name, sizeof( IfDescEp->Name ) ); | ||
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// Currently don't set any allowed nets... | ||
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@@ -254,14 +269,6 @@ void buildIfVc(void) { | |
// Set the index to -1 by default. | ||
IfDescEp->index = (unsigned int)-1; | ||
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/* don't retrieve more info for non-IP interfaces | ||
*/ | ||
if ( IfPt->ifr_addr.sa_family != AF_INET ) { | ||
IfDescEp->InAdr.s_addr = 0; /* mark as non-IP interface */ | ||
IfDescEp++; | ||
continue; | ||
} | ||
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// Get the interface adress... | ||
IfDescEp->InAdr.s_addr = s_addr_from_sockaddr(&IfPt->ifr_addr); | ||
addr = IfDescEp->InAdr.s_addr; | ||
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@@ -274,6 +281,21 @@ void buildIfVc(void) { | |
mask = s_addr_from_sockaddr(&IfReq.ifr_addr); // Do not use ifr_netmask as it is not available on freebsd | ||
subnet = addr & mask; | ||
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dp = getIfByName(IfPt->ifr_name, 1); | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. What is the purpose of function parameter which is always constant? There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. It is to be able to take advantage of the function so that it also works in the same way as it did in the past. There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. But that function is not called from other places. Such change introduce a dead code as parameter is never false. |
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if (dp != NULL && dp->allowednets != NULL) { | ||
allowednet = (struct SubnetList *)malloc(sizeof(struct SubnetList)); | ||
if (allowednet == NULL) my_log(LOG_ERR, 0, "Out of memory !"); | ||
allowednet->next = NULL; | ||
allowednet->subnet_mask = mask; | ||
allowednet->subnet_addr = subnet; | ||
currsubnet = dp->allowednets; | ||
while (currsubnet->next != NULL) | ||
currsubnet = currsubnet->next; | ||
currsubnet->next = allowednet; | ||
continue; | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. This completely skip code which is below. Why? Looks like this is a hack which just hide the fact that there is a probably bug in code below and try to invisibly skip it. This change is non-intuitive and introduce (potentially) dead code. Also probably may introduce another bugs as parts like |
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} | ||
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/* get if flags | ||
** | ||
** typical flags: | ||
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@@ -333,13 +355,16 @@ void buildIfVc(void) { | |
** - NULL if no interface 'IfName' exists | ||
** | ||
*/ | ||
struct IfDesc *getIfByName( const char *IfName ) { | ||
struct IfDesc *getIfByName( const char *IfName, int iponly ) { | ||
struct IfDesc *Dp; | ||
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for ( Dp = IfDescVc; Dp < IfDescEp; Dp++ ) | ||
if ( ! strcmp( IfName, Dp->Name ) ) | ||
return Dp; | ||
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for ( Dp = IfDescVc; Dp < IfDescEp; Dp++ ) { | ||
if (iponly && Dp->InAdr.s_addr == 0) | ||
continue; | ||
if ( ! strcmp( IfName, Dp->Name ) ) | ||
return Dp; | ||
} | ||
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return NULL; | ||
} | ||
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Why is this change needed?
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Because in ifvc.c are now handling subnets on the form addr & mask so it must be changed in order to work properly.
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I just would like to note that this specific change was reverted on pfSense
pfsense/FreeBSD-ports@009d60c
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Ok, so this change must be reverted....
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You are right, yesterday night i had compiled the source code and tested it. It is working perfectly without this change, and i can confirm that igmpproxy is working with a vlan tagged with pppoe interface.
What are next steps?. Do I cancel this pull request and open another one without config.c change or Do I revert the change in this pull request?
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Please update this pull request. There is no need to create a new one.