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author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2006-12-03 11:52:26 -0500 |
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committer | Arnaldo Carvalho de Melo <acme@mandriva.com> | 2006-12-03 11:52:26 -0500 |
commit | 8d0086adac0041de66b5f41b77eec0d8d239e16c (patch) | |
tree | 9830f9188a9ba57bf75c0fa7c2246866f8a8789a /net/dccp/ackvec.c | |
parent | 90fb0e60dd9178dbca2e42c682c483cdb7ea9f2d (diff) |
[DCCP] tfrc: Add protection against invalid parameters to TFRC routines
1) For the forward X_calc lookup, it
* protects effectively against RTT=0 (this case is possible), by
returning the maximal lookup value instead of just setting it to 1
* reformulates the array-bounds exceeded condition: this only happens
if p is greater than 1E6 (due to the scaling)
* the case of negative indices can now with certainty be excluded,
since documentation shows that the formulas are within bounds
* additional protection against p = 0 (would give divide-by-zero)
2) For the reverse lookup, it warns against
* protects against exceeding array bounds
* now returns 0 if f(p) = 0, due to function definition
* warns about minimal resolution error and returns the smallest table
value instead of p=0 [this would mask congestion conditions]
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'net/dccp/ackvec.c')
0 files changed, 0 insertions, 0 deletions